SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 6-K


                            Report of Foreign Issuer

                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934


                        For the Month of December 2002

                         Commission file number: 0-30924


                                   MARCONI PLC

             (Exact name of Registrant as specified in its Charter)


                                One Bruton Street
                                 London W1J 6AQ
                                     England
                    (Address of principal executive offices)


(Indicate by check mark whether the registrant files or will file annual
reports under cover Form 20-F or Form 40-F.)


                             Form 20-F X   Form 40-F


(Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange
Act of 1934.)


                                   Yes   No X


              CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS


In order to utilize the "Safe Harbor"  provisions  of the United States  Private
Securities  Litigation Reform Act of 1995 (the "Reform Act"),  Marconi plc ( the
"Company")  is  providing  the  following  cautionary   statement.   Except  for
historical information contained herein,  statements contained in this Report on
Form 6-K may constitute  "forward-looking  statements" within the meaning of the
Reform Act. The words "believe",  "anticipate",  "expect", "intend", "estimate",
"plan",  "assume",  "positioned",   "will",  "may",  "risk"  and  other  similar
expressions which are predictions of or indicate future events and future trends
which do not relate to historical matters identify  forward-looking  statements.
Reliance should not be placed on such statements  because they involve known and
unknown  risks,  uncertainties  and other factors which are in some cases beyond
the control of the Company,  together with its subsidiaries  (the "Group"),  and
may cause the actual results, performance or achievements of the Group to differ
materially  from  anticipated   future  results,   performance  or  achievements
expressed or implied by such forward-looking  statements (and from past results,
performance or  achievement).  Certain  factors that may cause such  differences
include  but are not  limited  to the  following:  (1) any major  disruption  in
production  at our key  facilities;  (2) changes in the  environmental,  tax and
other laws and regulations,  which, among other things,  could cause us to incur
substantial additional capital expenditures and operation and maintenance costs;
and (3) adverse  changes in the markets for our products,  including as a result
of increased  competition in the highly  competitive  international  markets for
such products. These and other risks, uncertainties and factors are discussed in
the  Company's  Registration  Statement  on Form F-1 and other  filings with the
Securities and Exchange  Commission,  including this Form 6-K.  Shareholders and
prospective  investors  are  cautioned  not to  place  undue  reliance  on these
forward-looking  statements which speak only as to the Company's  judgment as of
the date hereof.  Any such  forward-looking  statements are not intended to give
any  assurance as to future  results.  The Company  undertakes  no obligation to
publicly update or revise any of these  forward-looking  statements,  whether to
reflect new information or future events or circumstances or otherwise.




                           MARCONI INTERIM STATEMENT

                   for the six months ended 30 September 2002



  - Solid progress on cost reduction and cash generation initiatives despite
    continuing tough market conditions

              - Core sales GBP992 million; Q2 vs Q1 decline contained at 6%
              - Core operating cost run-rate reduced to GBP635 million by end
                September 2002
              - Significant reduction of operating cash outflows in second
                quarter; progressing towards operating cash breakeven

  - Further aggressive management of cost base

              - Breakeven Core sales to be reduced to below GBP1.9 billion per
                annum
              - Plans to achieve Core gross margin run-rate of 24 to 27 per
                cent of sales and Core operating cost run-rate of GBP450 million
                during next financial year ending 31 March 2004

  - Financial Restructuring progressed to next phase

              - Agreement with Syndicate Banks and informal bondholder
                committee regarding revised proposals will allow Restructuring
                to be formally documented and launched
              - On track to deliver GBP260 million cash distribution to
                creditors as part of proposed financial restructuring (including
                GBP95 million interest accrued at 15 October 2002 and already
                paid)
              - Completion now expected by 15 March 2003



London - 16 December 2002 - Marconi (MONI) today announced financial results for
the six months ended 30 September 2002.

Commenting on the results, Mike Parton, Chief Executive, said "The results for
the first six months of the year demonstrate clearly that the aggressive cost
reduction actions undertaken, together with our focus on cash generation and
debt reduction, are beginning to flow through. This has been achieved despite
further deterioration in the telecoms equipment and services market world-wide.
Furthermore, our continued commitment to customer service has been rewarded by
our customers' ongoing support.

"The improvements in our operational performance, together with the commitment
of our creditors to our financial restructuring and the appointment of our new
Board announced today, illustrate the progress that has been made in building
solid foundations for the business."

This news release should be read in conjunction with Marconi's Operational and
Financial Review for the six months ended 30 September 2002.

Conference Call Details

Management will host a conference call and audiocast for analysts and investors
on Monday 16 December at 4 pm UK time.

The call can be accessed on Marconi's website or by dialling +44 (0) 20 8996
3900 from Europe or +1 617 801 9702 from US and quoting "Marconi".

An instant replay will be available for seven days by dialling +44 (0) 1296
618700, pass code 661008 from Europe or +1 617 801 6888, passcode 71903 from US.

Materials to accompany the call will be available on Marconi's website
www.marconi.com.

ENDS/...

About Marconi plc

Marconi plc is a global telecommunications equipment and solutions company
headquartered in London. The company's core business is the provision of
innovative and reliable optical networks, broadband routing and switching and
broadband access technologies and services. The company's aim is to help fixed
and mobile telecommunications operators worldwide reduce costs and increase
revenues.

The company's customer base includes many of the world's largest
telecommunications operators. The company is listed on the London Stock Exchange
under the symbol MONI. Additional information about Marconi can be found at
www.marconi.com.

This press release contains forward-looking statements with respect to products,
partners, customers, future growth and other matters. Please refer to the Form
20-F report and Form 6-K reports filed by Marconi plc with the United States
Securities and Exchange Commission for a discussion of risks that could cause
actual results to differ materially from such statements.

Copyright (c) 2002 Marconi plc. All rights reserved. All brands or product names
are trademarks of their respective holders.

Contacts

Joe Kelly/David Beck

Public Relations

Marconi PLC

+44 (0) 207 306 1771

joe.kelly@marconi.com



Heather Green

Investor Relations

Marconi PLC

+44 (0) 207 306 1735

heather.green@marconi.com


                                  MARCONI PLC

                        OPERATIONAL AND FINANCIAL REVIEW

                   for the six months ended 30 September 2002

INTRODUCTION

Management has prepared this Operational and Financial Review to be read in
conjunction with the Group's interim financial statements and notes for the six
months ended 30 September 2002.

Financial Restructuring

On 29 August 2002, Marconi announced that it had concluded non-binding
indicative heads of terms (the "Heads of Terms") for the financial restructuring
of Marconi plc and its wholly owned subsidiary Marconi Corporation plc (the
"Restructuring").

On 13 September 2002, Marconi announced that, in accordance with the Heads of
Terms, interim security over the balance of the lockbox accounts established in
April 2002 had been granted in favour of the Group's Syndicate Banks,
bondholders (including the bond trustees) and certain ESOP derivative providers.

As set out in the announcement ("Financial Restructuring: Update"), Marconi has
today concluded modifications to the Heads of Terms. The terms of the
Restructuring as updated by these modifications are in most respects, including
the initial cash distribution, the same as those announced by Marconi on 29
August 2002.

Please refer to these announcements for further details on the Restructuring.

Going Concern

There is no guarantee that the negotiations relating to the Restructuring will
reach a satisfactory conclusion. However, in the light of the information
currently available to them, the Directors believe that the Group's bankers,
bondholders and other creditors will support the Group in achieving an
appropriate capital structure and that all the conditions for the Restructuring
will be satisfied. On this basis, the Directors consider it appropriate to
prepare the accounts on the going concern basis. Should the Group's bankers,
bondholders and other creditors cease to support the Group before the completion
of the Restructuring, or should all of the conditions for the Restructuring not
be met, adjustments would be necessary to record additional liabilities and to
write down assets to their recoverable amount. It is not practicable to quantify
these possible adjustments. (cf Note 1 to the Group's Interim Financial
Statements).

Definitions

Unless otherwise stated, references to "Group" in the trading section of this
Operational and Financial Review refer to the Marconi Group including its share
of joint ventures, but excluding its share of results of associates.

The figures for the six month period to 30 September 2001 have been restated (as
reported in the Group's annual report and accounts for the year ended 31 March
2002) to reflect the adoption of Financial Reporting Standard no. 17 "Retirement
Benefits".

Throughout this Operational and Financial Review, the terms "gross profit",
"operating profit" and "operating loss" refer to the gross profit or operating
profit/(loss) before goodwill amortisation and exceptional items.

Reporting Structure

For reporting purposes, the Group divides its continuing operations into 2
segments: Core and Capital.

Core is further analysed by business-type: Network Equipment, comprising Optical
Networks, Broadband Routing and Switching (BBRS), European Access, North
American Access, Outside Plant & Power (OPP) and Other Network Equipment; and
Network Services comprising Installation, Commissioning & Maintenance (IC&M) and
Value-Added Services (VAS).

Capital comprises businesses which Marconi manages for value and ultimately for
disposal. In the accompanying financial information, Capital includes Applied
Technologies until its disposal on 12 July 2002, Infochain until its closure on
18 August 2002, Online, Tetra and UMTS mobile activities and other smaller joint
ventures and investments. In addition, the Group has an economic interest of
71.9 per cent, but voting rights of only 49.9 per cent in Easynet Group Plc
(Easynet). This investment is managed through the Group's Capital division but
is accounted for as an associate in the Group's consolidated accounts.

Strategic Communications is reported as a discontinued operation following
completion of the sale of this business on 2 August 2002. Discontinued
operations in the previous financial year also includes Medical, Commerce and
Data Systems until the date of their respective disposals.

As part of the proposed Restructuring, it is intended that the Group will
segment its business along geographic lines and report the equipment and
services activities of BBRS, OPP and North American Access (US businesses)
separately from the Group's businesses based in Europe and the Rest of the
World, which comprise Optical Networks, European Access, Other Network Equipment
and Network Services. The Group confirms that as previously disclosed in its
announcement of 29 August 2002, OPP and North American Access are being managed
for value and upon ultimate disposal, the proceeds would be used to pay down the
US dollar limited recourse notes proposed as part of the Restructuring.

OVERVIEW

The first half of the financial year was characterised by a further
deterioration in trading conditions as many telecom operators applied
substantial incremental capital expenditure limitations to their already reduced
budgets.

In the face of this  extremely  challenging  environment,  Marconi  continued to
focus on its principal short-term business  objectives:  i) to maintain its cash
flows in line with its  commitment  to deliver a proposed  GBP260  million  cash
distribution  to creditors  (including  GBP95 million of interest  accrued to 15
October  2002  and  already  paid)  as part of the  Group's  proposed  financial
restructuring;  ii) to improve  gross  margins  and reduce its  annualised  Core
operating cost base to no more than GBP520  million.  The Group today  announced
plans to further  reduce  this target  annualised  Core  operating  cost base to
GBP450 million during the next financial year (cf Recent Developments).

Group operating loss before goodwill amortisation and exceptional items amounted
to GBP235  million,  or GBP156  million  before  depreciation  and  amortisation
(EBITDA),  and was the main driver of the Group's  operating cash outflow before
exceptionals and after capital  expenditure of GBP169 million during the period.
Net cash  proceeds  from  business  disposals  of GBP387  million were more than
sufficient to fund exceptional cash restructuring  costs of GBP186 million,  net
interest  payments of GBP133  million and other  non-operating  cash outflows of
GBP11 million incurred during the period.

The Group reported progress on gross margins during the period. Cost reductions
achieved in the supply chain during the first quarter were more than offset by
the lower level of activity in the period as well as an unfavourable business
mix. As a result, gross margin in the Core fell to 17.5 per cent of sales (Q4
2002: 20 per cent). Further cost reductions and a more favourable business mix
in the second quarter, however, enabled the Group to increase gross margin in
the Core to 22 per cent of sales before the impact of additional stock
provisions of GBP25 million which reduced second quarter gross margin to 16 per
cent of sales. The Group expects future gross margin improvement in the
near-term to result from further supply chain rationalisation and outsourcing
initiatives, along with additional planned product cost reductions, lower
materials and engineering costs and expected improvements in business mix.

Significant progress was made to further cut operating expenditure during the
period. By the end of September 2002, the Group had achieved an annualised
operating cost rate of GBP635 million in the Core, down almost 30 per cent from
GBP890 million at 31 March 2002. This was mainly driven by headcount reductions.
The number of employees in the Core fell by around 4,600 from approximately
23,600 at the end of March 2002 to just over 19,000 by the end of September
2002.

The Group benefits from the continued support of its strong customer base of
mainly incumbent operators and government agencies. The 20 largest customers
during the first half accounted for 57 per cent of Core sales, up from 53 per
cent in the previous six month period and 45 per cent in the first half of the
last financial year. Recent major new contract wins include a four-year frame
contract with O2 in Germany for the supply of fixed wireless access and optical
transmission equipment; the first sale of the Group's new multi-service
switch-router platform, the BXR 48000 to the US Federal Government; a two-year
frame contract with Telkom South Africa for the supply and installation of the
Group's Access Hub and Access network management platforms and a contract
extension from Alstom to deliver a voice radio system as part of the UK West
Coast Main Line signalling and communications upgrade.

Also, during the period, the Group launched a number of new products including
its next generation Series 4 SDH SMA 1 to 4 products which have been designed to
be more cost effective and offer service providers greater functionality than
previous generations of the product; its next generation digital cross connect,
the MSH2K; OC192 ATM port cards which will provide an additional feature for the
Group's BBRS product ranges; a new range of short-haul radio SDH which has
already benefited from wide market acceptance amongst German mobile operators;
the second release of the Group's Access Hub platform; as well as an upgraded
version of the Group's Softswitch product.

RECENT DEVELOPMENTS

Core Cost Reduction

Given the current market  conditions,  management  consider it prudent to reduce
the  breakeven  level of sales  below the  annualised  run-rate  achieved in the
second quarter. Consequently, the Group now expects to reduce its Core operating
cost  run-rate  to  GBP520  million  per  annum  before  the end of the  current
financial year, ahead of its previously  disclosed  schedule.  Furthermore,  the
Group  intends  to  implement  further  cost  reduction  actions  to reduce  the
annualised  Core operating cost base to GBP450 million during the next financial
year.

Of the total cost savings to be achieved,  the Group  already has plans in place
to reach a run-rate of GBP480 million and is currently  considering  initiatives
to save the further GBP30 million  required to achieve the new target during the
next financial year. Once the new operating expenditure target is achieved,  the
level of sales at which the Group  would  break even in its Core  business at an
operating profit level will be reduced to below GBP1.9 billion per annum.

Core headcount has been reduced by approximately 1,700 since the end of
September 2002 and, at the end of November 2002 was approximately 17,300. A
further 2,700 leavers have been identified and announced and are due to leave
the business in the next few months, giving a known headcount target of around
14,600. Once the reduced operating cost target has been achieved, the Group
expects to employ around 14,000 people in its Core business.

Core Operating Model

As a result of these further cost reductions and based on current market
conditions Marconi expects to achieve a gross margin run-rate in the range of 24
to 27 per cent of sales in the Core and an operating expenditure run-rate in the
range of 21 to 24 per cent of sales during the next financial year ending 31
March 2004. Of this, the Group expects that its US businesses would contribute a
gross margin run-rate in the range of 33 to 35 per cent of sales and an
operating expenditure run-rate in the range of 29 to 33 per cent of sales, while
its businesses in Europe and Rest of the World would contribute a gross margin
run-rate in the range of 23 to 26 per cent of sales and an operating expenditure
run-rate in the range of 20 to 23 per cent of sales.

NEW BOARD

Marconi has appointed John Devaney, most recently Chairman of Exel plc, as the
new Chairman of Marconi Corporation and Marconi plc. The Group also appointed
former Lloyds TSB Group Finance Director, Kent Atkinson, as a non-executive
Director of both Marconi Corporation and Marconi plc, and Chairman of the Audit
Committee and Werner Koepf, most recently executive Chairman of Compaq Computer
in Europe, the Middle East and Africa, as a non-executive Director of both
Marconi Corporation and Marconi plc. All of these appointments will take
immediate effect upon announcement. Derek Bonham will remain on the board as a
non-executive director of Marconi plc through the completion of Marconi's
financial restructuring.

In addition, Sir Alan Rudge and Hon Raymond G H Seitz, both non-executive
Directors, communicated their intentions to resign from the Board immediately to
make way for an orderly reconstruction of the Board. Sir William Castell and
Nigel J Stapleton, both non-executive Directors did not offer themselves for
re-election to the Board at Marconi's annual general meeting in October this
year.

On 14 November 2002, Marconi reached agreement with Steve Hare, Chief Financial
Officer to leave the business on 31 January 2003. Mr Hare stepped down from the
Board with immediate effect and Chris Holden, formerly Group Financial
Controller within the business joined the Board of Marconi Corporation and
Marconi plc as acting Chief Financial Officer.

As a result of these announcements, the Marconi Board comprises:

Executive Directors             Mike Parton   Chief Executive Officer
                                Mike Donovan  Chief Operating Officer
                                Chris Holden  Chief Financial Officer

Non-Executive Directors         John Devaney  Chairman
                                Kent Atkinson Chairman of Audit Committee
                                Derek Bonham
                                Werner Koepf
                                Allen Thomas  Chairman of Remuneration Committee





CORE BUSINESS REVIEW

Core Key Figures

in GBP million                                               FY03                               FY02
                                                 Q1             Q2             H1               H1
                                                                                    

Orders Received                                 466            379            845            1,402
Sales                                           510            482            992            1,448
Gross Profit                                     89             79            168              340
Operating Loss                                (115)           (90)          (205)            (247)
Operating Cash Flow after capital              (81)           (43)          (124)            (358)
expenditure




Orders Received, Order Backlog, Book to Bill Ratio

Core orders  received at GBP845 million were GBP557 million or 40 per cent lower
than in the  corresponding  period  of the  previous  financial  year (H1  2002:
GBP1,402 million). A lower order intake occurred in both Network Equipment (down
41 per cent) and in Network  Services (down 37 per cent). In Network  Equipment,
orders  received fell in all major product areas,  with the most marked declines
in Optical Networks and BBRS. In Network  Services,  the decline was most marked
in Installation & Commissioning  as a direct result of the lower level of orders
received for network equipment and in the Group's  Integrated  Systems activity,
part of Value-Added Services, where there were no renewals or award of new major
long-term service contracts programmed in the second quarter of the year.

The order backlog in the Core stood at approximately GBP916 million compared to
GBP1,119 million at 31 March 2002, a reduction of GBP203 million. This reduction
occurred in both Network Equipment and Network Services. In Network Services
which accounted for 64 per cent of the backlog, the decline was a result of a
higher proportion of sales traded under existing orders and the absence, in the
second quarter, of major long-term service contracts. In Network Equipment which
accounted for the remaining 36 per cent, the consumption of the order backlog
resulted from an overall reduction in the time between order to shipment evident
across the telecommunications industry and a higher proportion of shipments made
under existing frame contracts.

Core book to bill stood at 0.85 compared to 0.97 one year earlier.




Sales by Geography

in GBP million                                           FY03                              FY02
                                     Q1               Q2               H1                  H1
                                                                               


EMEA                                285              285              570                 752
US                                  153              142              295                 463
APAC                                 47               45               92                 107
CALA                                 25               10               35                 126
Core                                510              482              992               1,448




Overall  Core sales fell GBP456  million or 31 per cent to GBP992  million.  The
decline in second  quarter  sales  compared to the first  quarter was limited to
GBP28 million, or 6 per cent.

Market conditions have deteriorated in all geographies but the extent of the
further decline varies from country to country and depends on individual telecom
operators' spending profiles.

Sales in Europe, Middle East and Africa (EMEA) fell by GBP182 million, or
approximately 24 per cent to GBP570 million. Within the first half, sales in the
region remained stable quarter on quarter. Market dynamics in the UK showed
signs of stabilisation. BT continues its broadband access campaign, which does
not lead to immediate sales for Marconi but is expected over time to lead to
increased traffic flows onto the core transmission network and, in turn, to
renewed spending in optical equipment. In addition, a number of second operators
are expected to complete financial restructuring initiatives in the coming
period, although this has not yet translated to new orders. Italian market
volumes also remained relatively stable mainly as a result of the absence of 3G
debt issues amongst Italian telecom operators although the pricing environment
in Southern Europe generally has become increasingly challenging. Elsewhere in
Europe, major operators are continuing to cut capital expenditure budgets as
they focus on debt reduction. This particularly impacted Core sales in Germany
during the period.

The further  market  decline has been most marked in the Americas.  Sales in the
United  States  (US) fell by GBP168  million,  or  approximately  36 per cent to
GBP295  million  while sales in Central & Latin  America  (CALA) were down GBP91
million, or approximately 72 per cent to GBP35 million. In the US, regional bell
operating  companies  (RBOCs) have  continued to maintain  tight  controls  over
capital  expenditure  further  reducing overall budgets during the period whilst
political  and  macro-economic  issues in CALA have had a  significant  negative
impact on the telecoms market, particularly in Brazil and Mexico.

Sales  in APAC  fell by  GBP15  million  or  approximately  14 per cent to GBP92
million.  The  decrease  occurred  mainly  in  Optical  Networks  as a result of
increased competition and pricing pressure in the region.



Sales Channels

Marconi sells its products and services through its direct sales force and also
through indirect channels such as local partners or distribution partners such
as Ericsson, Italtel, Nokia and Siemens. Sales through channel partners were
significantly lower than the first half of the previous year as a result of the
overall reduction in market volumes and particularly, in the case of sales
through Ericsson and Nokia, as a result of the completion of 2G and 2.5G
wireless network rollouts in the previous year and the ongoing delays to the
deployment of 3G network rollouts.



Pricing

A high proportion of Core sales, particularly in Europe, are derived from
existing frame contracts. The Group estimates that price erosion in Network
Equipment under such contracts ranges up to 8 per cent on an annual basis. The
Group aims to continue to match this price erosion with planned product cost
savings to avoid erosion of gross margins. Network Services tends to be more
resilient to price erosion.

Key Customers

The Core business serves a strong customer base of predominantly incumbent
operators and government agencies. The ten largest customers during the first
six months were BT, BellSouth, Metro City Carriers (Germany), Telecom Italia,
Telkom South Africa, UK Government, US Federal Government, Verizon, Vodafone
Group and Wind (Italy). In aggregate, these customers accounted for 46 per cent
of Core sales during the period (H1 2002: 32 per cent). BT remains the Group's
largest customer and accounted for 17 per cent of Core sales during the period
(H1 2002:11 per cent).

In EMEA, the five largest customers during the first six months were BT, Metro
City Carriers, Telecom Italia, UK Government and Vodafone Group and in aggregate
accounted for 55 per cent of Core sales in the region during the period (H1
2002: top 5 EMEA customers accounted for 31 per cent).

In the US, the five largest customers during the first six months were
BellSouth, Qwest, SBC, US Federal Government and Verizon and in aggregate
accounted for 47 per cent of Core sales in the region during the period (H1
2002: top 5 US customers accounted for 46 per cent).

Gross Profit

Core gross profit before exceptional items amounted to GBP168 million, or 17 per
cent of sales.  This  included  the impact of  additional  stock  provisions  of
approximately  GBP25 million  charged to cost of sales in the second  quarter of
the financial  year.  In line with the Group's  accounting  policy,  these stock
provisions  were created as a  consequence  of the  continued  decline in market
conditions. They related mainly to optical networking and access equipment.

For the purposes of this Core Business Review, the Group has analysed Core gross
margin on an underlying basis, excluding the impact of these stock provisions
and before exceptional items.

Underlying gross profit in the Core amounted to GBP193 million or 19 per cent of
sales (H1 2002: GBP340 million; 23 per cent of sales). The decrease compared to
the previous year related mainly to reduced sales volumes in Network Equipment
and IC&M activities, unfavourable business mix issues and some price erosion,
particularly in Optical Networks. Significant cost savings have already been
achieved and further cost reduction plans are under way in order to address the
continued under-utilisation of resources mainly in the supply chain.

On a sequential basis within the period, first quarter Core gross margin
declined to approximately 17.5 per cent of sales compared to 20 per cent in the
final quarter of the previous financial year. This was mainly due to the reduced
level of sales volumes in the period (over GBP180 million lower than in the
previous quarter) and the unfavourable business mix which more than offset cost
reductions achieved in the supply chain during the period.

In the second quarter, underlying gross margin in the Core improved sequentially
to approximately 22 per cent despite the further decline in Core sales.
Approximately two-thirds of this improvement over the first quarter related to
direct cost savings which included further manufacturing rationalisation,
improved utilisation of resources in services and procurement and engineering
cost reductions. The balance was driven by the more favourable business mix
compared to the previous quarter.

Operating Expenses

During the first half, operating cost reduction remained a key focus of the
Group's strategy.

Core operating expenses totalled GBP373 million or 38 per cent of Core sales
during the period, a reduction of GBP214 million or 36 per cent compared to the
first half of the previous year (GBP587 million; 41 per cent of Core sales).
Significant savings were achieved across all main categories of operating
expenditure.

By the end of September 2002, the Group had reached an annualised operating cost
run-rate in the Core business of GBP635 million,  reduced from GBP1.1 billion at
the end of September 2001 and GBP890 million at the end of March 2002.

Operating Expenses - Research & Development (R&D)

Core R&D  expenditure  amounted  to  GBP163  million,  a 35 per  cent  reduction
compared to the first half of the previous financial year (GBP249 million).

Optical Networks accounted for almost 40 per cent of the total Core R&D spend
during the first half (H1 2002: approximately 30 per cent). The main focus of R&
D in Optical Networks remains the continued development of Marconi's next
generation SDH Series 4 product range and digital cross connect, the PMM metro
DWDM product range and further upgrades to the Group's network management
software. In July 2002, the Group announced its decision to terminate the
development of its SONET technology and the consequent closure of its
Canadian-based SONET facility, contributing to the overall R&D savings achieved
during the period.

R&D spend across the Group's Access portfolio, in Europe and North America
combined, accounted for a further 25 per cent of total Core R&D. On-going
development programmes are focused on fixed wireless access, Softswitch and
Access Hub platforms as well as sustaining investment on certain legacy products
to support existing customers. R&D investment in North American Access has been
significantly reduced as a result of the Group's previously announced decision
to cease investment in next generation fibre-to-the-home technologies.

BBRS accounted for 23 per cent of Core R&D. Over 50 per cent of this spend was
focused on the development of the Group's new multi-service core switch, the BXR
48000. Other ongoing programmes include the further development of the ASX 1000
and 4000 platforms.

The remaining 12 per cent of R&D spend in the period related mainly to OPP,
wireless software and Other Network Equipment.

Operating Expenses - Sales & Marketing

Core Sales & Marketing expenditure amounted to GBP145 million, a 36 per cent
reduction compared to the first half of the previous financial year (GBP228
million). These savings have been achieved mainly through headcount reductions,
reduced spend on marketing programmes and initiatives, the consolidation and
closure of several sales offices world-wide, and the transition to indirect
sales channels in a number of countries, particularly in the APAC region.

Operating Expenses - General & Administrative (G&A)

G&A  expenses in the Core  amounted to GBP59  million,  a 45 per cent  reduction
compared to the first half of the  previous  financial  year  (GBP108  million).
Actual  savings have been  achieved  mainly  through  headcount  reductions  and
reduced  spend on  professional  fees incurred in the normal course of business.
Professional fees relating to the Group's financial restructuring are classified
as exceptional costs.

Operating Expenses - Other

Other Core operating expenses amounted to approximately GBP6 million and related
mainly to patent and royalty fees as well as to foreign exchange. (H1 2002:
operating income GBP2 million)




Operating Loss

in GBP million                                                                          FY03                          FY02
                                                               Q1                    Q2                H1             H1
                                                                                                          

Network Equipment                                            (96)                  (83)             (179)          (216)
Network Services                                              (2)                     7                 5              2
Other                                                        (17)                  (14)              (31)           (33)
Core                                                        (115)                  (90)             (205)          (247)




Core  operating  loss was  reduced to GBP205  million (H1 2002:  operating  loss
GBP247 million).  The significant reduction in gross profit was more than offset
by the operating cost savings achieved during the period, giving rise to a GBP42
million or 17 per cent improvement.

Core  operating  loss  comprised an operating  loss of GBP179 million in Network
Equipment  and an  operating  profit of GBP5  million  in Network  Services.  In
addition,  the Group  incurred  GBP31 million of other costs mainly  relating to
Head Office and other central costs.





Analysis by Business Type

Core Sales by Product Area

in GBP million                                                                         FY03                           FY02
                                                                      Q1                  Q2            H1            H1
                                                                                                          

Optical Networks                                                     134                 108           242           357
Broadband Routing and Switching                                       38                  35            73           113
European Access                                                       59                  69           128           189
North American Access                                                 25                  23            48            65
Outside Plant & Power                                                 46                  34            80           156
Other Network Equipment                                               14                  15            29            63
Network Equipment                                                    316                 284           600           943
IC&M                                                                  97                  89           186           271
VAS                                                                   97                 109           206           234
Network Services                                                     194                 198           392           505
Core                                                                 510                 482           992         1,448




Sales of the group of activities defined in the Heads of Terms as "US Assets"
had sales of GBP295 million during the first half and are included in the Core
sales reported above (H1 2002: GBP479 million).

Network Equipment

Sales

Sales of  Network  Equipment  amounted  to GBP600  million,  a decline of GBP343
million or 36 per cent (H1 2002:  GBP943  million).  Sales  declined  across all
major product areas as a result of the further reductions in capital expenditure
by the majority of telecom operators world-wide.

Optical Networks

Optical  Networks  sales  declined  by GBP115  million  or 32 per cent to GBP242
million (H1 2002: GBP357 million).  All areas of the business were affected as a
result of a combination of three main factors:  i) the general  market  downturn
arising from further  reductions in capital spending by many telecom  operators;
ii) priority by many operators to maximise utilisation in existing core networks
rather than  proceeding  with new network  roll-outs;  iii) a refocusing  of the
reduced  investment,  by certain customers,  from core transmission  networks to
broadband access equipment.

Sales of SDH equipment accounted for around 80 per cent of total Optical
Networks sales during the period (H1 2002: 75 per cent) and DWDM for around 15
per cent (H1 2002: 15 per cent). This split reflects the higher proportion of
orders for in-fill equipment relating to existing networks which are typically
based on low-order SDH technology as opposed to new network build which would be
orientated towards high-order SDH and DWDM technology. The balance represented
sales of network management software and a small amount of SONET equipment sold
prior to the Group's decision to cease further development and sales of this
technology.

Despite the overall reduction in market size, and the 27 per cent decline in
sales of SDH equipment during the period, Marconi maintained its market share in
all areas of SDH with the exception of its position in digital cross connects.
In September 2002, the Group announced the availability of its next generation
digital cross connect, the MSH2K which is currently on trial in a number of
European customers' labs and for which Marconi has been awarded initial orders.

Sales of DWDM equipment fell 28 per cent compared to the level recorded in the
first half of the previous year. This was mainly a result of a high proportion
of sales to China Railcom in the previous year as Marconi completed the
deployment of equipment for the North West Ring project, which was not repeated
in the first half.

Sales were down across all geographic zones. In EMEA, the Group's main market
for Optical Networks equipment, sales performance has varied across countries.
Sales increased in the United Kingdom in comparison to the low level recorded in
the first half of the previous year, and also in Italy as a result of continued
network roll-outs, particularly by Wind and Vodafone-Omnitel. These increases
were more than offset, however, by declines in direct and indirect sales through
channel partners in other European markets mainly as a result of general market
softness. This trend was particularly marked in Germany as a result of the
completion of the Group's roll-out of SDH equipment under a frame contract to
Deutsche Telekom (DT), and continued capital expenditure reductions by DT and
other German wireline and wireless operators. Sales in CALA have been affected
by the uncertain macro-economic and political environment prevalent in the
region during the period. Sales in APAC decreased as a result of the completion
of the North West Ring project in China and due to increased competition in the
region.

Broadband Routing and Switching (BBRS)

BBRS comprises mainly sales of multi-service switching products such as the ASX
4000 multi-service core switch and the smaller ASX and TNX edge switches and a
range of legacy ATM switching and routing products designed for enterprise
customers. In addition, during the period, Marconi began to ship the first units
of its new high capacity multi-service core switch, the BXR 48000 to the US
Federal Government.

Sales  of BBRS  equipment  decreased  by GBP40  million  or 35 per cent to GBP73
million (H1 2002: GBP113 million).

Sales to customers requiring carrier-class networks accounted for 64 per cent of
BBRS sales during the first half (H1 2002: 62 per cent of sales). This included
sales to the US Federal Government, the Group's single largest customer of BBRS
equipment which increased year on year mainly as a result of increased shipments
of ATM edge switching equipment and first sales of the BXR 48000. This increase
partially offset the substantial decline in sales to service provider customers
resulting from the significantly reduced capital spending by US operators.

Sales to Enterprise customers accounted for 36 per cent of BBRS sales during the
first half (H1 2002: 38 per cent). This decrease in sales to Enterprise
customers follows the Group's decision, in 2001, to refocus its technical and
commercial resources towards customers requiring carrier class networks.

BBRS service sales are reported within Network Services. These amounted to GBP43
million during the first half of the financial year, a 16 per cent increase on
the corresponding period last year (GBP37 million). This increase was due to one
specific major contract for airport communications services in the United
States, which the Group expects to complete before the end of the current
financial year.

European Access

European Access comprises Fixed Wireless Access (accounting for approximately 34
per cent of European Access sales), Multimedia Voice Systems (approximately 24
per cent), Marconi's High Density DSLAM, the Access Hub (over 10 per cent) and
other, mainly narrowband access products (representing the balance of
approximately 30 per cent).

Sales of  European  Access  equipment  fell by GBP61  million  or 32 per cent to
GBP128 million (H1 2002:  GBP189 million).  Within the period, at GBP69 million,
second  quarter  sales were 17 per cent  higher  than the first  quarter  (GBP59
million) as a result of increased sales of High Density DSLAM in Italy and voice
systems in the United Kingdom.

Sales fell year on year across all main product areas with the exception of
sales of the Group's High Density DSLAM product, launched during the first half
of the previous financial year. The increase in DSLAM sales was particularly due
to increased volumes in the Italian market during the second quarter of the
financial year, as Telecom Italia aggressively deployed Marconi's equipment
under an existing frame contract.

Conditions remain tough in Germany, the Group's main market for its fixed
wireless access products. Sales were down compared to the first half of the
previous year mainly as a result of the high levels of debt amongst German
mobile operators leading to a focus on balance sheet restructuring and tight
constraints on capital spending. Delays to planned 3G network rollouts during
the first half have also contributed to the difficult business environment. Two
major operators - O2 and D2 Vodafone - have recently confirmed 3G network
rollout plans and are now beginning initial deployments of equipment. In October
2002, Marconi was awarded a major new frame contract from mobile operator O2's
German subsidiary for the supply of fixed wireless access and optical networking
equipment to support its planned 3G network roll-out.

Sales of multimedia voice systems were down year on year as the Group's
customers, including BT, continued to switch investment from their narrowband
access to broadband access networks.

North American Access

North American Access comprises mainly copper and fibre-based digital loop
carrier equipment.

Sales fell by GBP17  million  or 26 per cent to GBP48  million  (H1 2002:  GBP65
million).  This was  mainly  due to the  difficult  market  conditions  in North
America  and  the  continued   slowdown  of  narrowband  access   infrastructure
investment.   Sales  of  Marconi's  legacy  DISC*S  copper  product  range  were
particularly  affected following the Group's  announcement in March 2002 that it
had discontinued future research and development spending in this area.

Outside Plant & Power (OPP)

OPP comprises sales of connection, protection and enclosure products for the
outside plant portion of access networks as well as sales of power equipment to
telecommunications service providers and original equipment manufacturers.

OPP  equipment  sales fell by GBP76  million or 49 per cent to GBP80 million (H1
2002: GBP156 million). This was mainly a result of the significant reductions in
capital spending in the United States,  which accounted for GBP74 million of OPP
sales during the period (H1 2002:  GBP129 million).  The general market downturn
in CALA also  contributed  to the sales  decline.  OPP recorded  GBP6 million of
sales in CALA  during  the first six  months  compared  to GBP26  million in the
corresponding period of the previous financial year.

OPP service sales are reported within Network Services.  These amounted to GBP51
million  during the first  half of the  financial  year,  a  reduction  of GBP57
million,  or 53 per cent compared to GBP108 million in the corresponding  period
of the previous  year.  This decline was a direct result of the reduced level of
sales of OPP equipment.

Other Network Equipment

Other Network Equipment comprises mainly the Group's interactive systems
activity as well as legacy operations in South Africa and Asia Pacific.

Sales in this group of activities fell by GBP34 million or 54 per cent to GBP29
million (H1 2002: GBP63 million). This was mainly the result of reduced sales in
the Group's legacy optical cable business in South Africa and the absence of
sales in Hong Kong following completion of a major long-term contract during the
previous financial year. Sales of interactive systems remained stable during the
period.

Operating Loss

Network Equipment  incurred an operating loss of GBP179 million,  an improvement
of GBP37 million or 17 per cent compared to an operating  loss of GBP216 million
in the first six months of the previous  financial  year. The main product areas
contributing to this improvement  during the period were BBRS and North American
Access.  Operating performance improvement in Optical Networks remains difficult
in the face of continued volume reductions,  contractual annual price reductions
under existing  frame  contracts and some price erosion on new orders as well as
issues relating to business and geographic mix.

Network Services

Sales of Network  Services  amounted to GBP392  million,  a reduction  of GBP113
million or 22 per cent (H1 2002: GBP505 million).  Whilst sales fell across both
main types of service activity, the decline was most marked in the field of IC&M
which accounted for 47 per cent of Network  Services sales during the period (H1
2002: 54 per cent).

Installation, Commissioning and Maintenance (IC&M)

IC&M sales  fell by GBP85  million  or 31 per cent to GBP186  million  (H1 2002:
GBP271  million) as a direct result of the decline in equipment sales to telecom
operators with which these services are associated.

Approximately GBP65 million, or around 76 per cent of this decline, occurred in
the Americas and related mainly to sales of OPP services.

In EMEA, which accounted for approximately 65 per cent of IC&M sales during the
period (H1 2002: 52 per cent), sales were down around 14 per cent, with an
increased level of installation and commissioning activity in Italy partially
off-setting higher percentage declines in other countries. This was due to the
phasing of network deployments by Telecom Italia, Vodafone-Omnitel and Wind
during the final quarter of the previous year and during the first half of the
current year.

IC&M sales are not common in APAC as these activities tend to be handled by the
Group's local partners.

Value-Added Services (VAS)

VAS comprises three main activities: i) integrated systems which provides
integrated network solutions to mainly non-telecom customers including
government agencies, transportation organisations and utilities; ii) global
managed services which is mainly the services branch of the Group's BBRS
business and also includes the Group's IT outsourcing service activities; and
iii) wireless services which, for reporting purposes, consolidates the Group's
wireless network planning activities worldwide.

Overall,  VAS sales fell by GBP28  million or 12 per cent to GBP206  million (H1
2002: GBP234 million).  Sales in integrated  systems and global managed services
remained relatively stable and were offset by a decline in wireless services.

During the first half of the previous financial year, integrated systems
benefited from a high proportion of sales arising from the completion of the
long-term Jubilee Line Extension communications project for London Underground.
Excluding the impact of this one major contract, the increase in underlying
sales of integrated systems was driven by the trading of long-term service
contracts during the period, particularly in the United Kingdom (eg West Coast
Main Line) and Germany (eg Ramstein).

Global managed services recorded a single-digit decrease during the period.
Increased sales of BBRS-related services were offset by lower sales of IT
outsourcing services prior to the Group's ongoing managed exit from this
activity.

Sales of wireless services decreased by over 30 per cent during the period. This
was mainly a result of reduced capital expenditure in the wireless market
affecting all geographic areas, but most notably the Americas.

On a  sequential  basis,  VAS sales  increased  from GBP97  million in the first
quarter to GBP109 million in the second quarter as a result of increased trading
under  long-term  service  contracts,  particularly  in the  transportation  and
government sectors.

Operating Profit

Network  Services  recorded an improvement in operating profit from GBP2 million
in the first half of the  previous  financial  year to GBP5  million  during the
period.  Improved resource  utilisation in IC&M and other ongoing cost reduction
initiatives were the main drivers of the increased profitability.

While improvements were recorded across most major service activities, wireless
services generated an operating loss during the period mainly as a result of the
substantially lower sales recorded during the period.




GROUP REVIEW


Group Key Figures (including joint ventures)
in GBP million                                      6 months ended
                                                   30 September
                                                2002           2001
                                                          

Sales                                          1,106          2,578
Gross Profit                                     199            664
Operating Loss                                 (235)          (238)
Operating Exceptionals                         (242)        (4,502)
Non-Operating Exceptionals                      (14)             75
Associates                                      (70)              5
Retained Loss                                  (731)        (5,076)









Group Sales
in GBP million                                     6 months ended
                                                   30 September
                                                2002          2001
                                                         

Core                                             992         1,448
Capital                                           32           207
Other                                            (5)          (27)
Continuing operations                          1,019         1,628
Discontinued operations                           87           950
Group                                          1,106         2,578




Group  sales for the six  months  to 30  September  2002  amounted  to  GBP1,106
million,  representing a decrease of GBP1,472 million or 57 per cent compared to
the first six months of the previous year (H1 2002: GBP2,578 million).

Sales from continuing  operations  amounted to GBP1,019  million,  a decrease of
GBP609  million  or 37 per cent  compared  to the  corresponding  period  of the
previous  financial  year. This decrease was mainly the result of reduced demand
in the global market for telecommunications  equipment and services resulting in
lower sales in the Group's Core  business and the  disposal of  businesses  from
Marconi  Capital  including  the  Group's 50 per cent stake in General  Domestic
Appliances  and  Marconi  Optical  Components   completed  during  the  previous
financial year as well as the sale of Applied  Technologies  Group  completed in
July 2002.

Sales from discontinued  operations  amounted to GBP87 million during the period
and related mainly to Strategic Communications prior to its disposal on 2 August
2002. Of the GBP950  million of sales from  discontinued  operations  during the
first  half of the  previous  year,  approximately  GBP133  million  related  to
Strategic  Communications.  The  balance of GBP817  million  related to business
disposals: Medical, Commerce and Data Systems.





Group Gross Profit (including joint ventures)
in GBP million                                      6 months ended
                                                    30 September
                                                2002          2001

                                                        

Continuing operations                            175           391
Discontinued operations                           24           273
Group                                            199           664




Gross profit before exceptional items at Group level amounted to GBP199 million,
representing a gross margin of 18 per cent (H1 2002: GBP664 million; 26 per cent
of sales). Of this amount, the Group's continuing operations contributed a gross
profit  of GBP175  million  and a gross  margin of 17 per cent (H1 2002:  GBP391
million; 24 per cent of sales) and discontinued  operations  contributed a gross
profit of GBP24  million  and a gross  margin  of 28 per cent (H1  2002:  GBP273
million;  29 per cent of sales).  The overall  decrease in gross profit at Group
level was mainly  attributable  to the  reduction  in sales  volumes in the Core
business and the  resulting  under-utilisation  of resources in the supply chain
and services activity.  Business  disposals included in discontinued  operations
also contributed to the absolute decrease in gross profit.






Group Operating Profit/(Loss) by Segment
in GBP million                                     6 months ended
                                                   30 September
                                                2002          2001
                                                         

Core                                           (205)         (247)
Capital                                         (28)          (40)
Continuing operations                          (233)         (287)
Discontinued operations                          (2)            49
Group                                          (235)         (238)





Operating  cost savings  achieved  mainly in the Core (cf Core Business  Review)
during  the  first  half  were  more  than  offset  by the  reduction  in  gross
profitability,  leading to an overall Group  operating  loss of GBP235  million.
This  represented a GBP3 million  improvement  compared to the first half of the
previous year. (H1 2002: operating loss GBP238 million).

Of this, an operating  loss of GBP233  million was  attributable  to the Group's
continuing  operations  (GBP205  million of which  related to the Core and GBP28
million to Capital) and an operating  loss of GBP2 million was  attributable  to
the Group's discontinued operations.

OTHER FINANCIAL ITEMS

Exceptional Items

Operating Exceptionals

For the six months to 30  September  2002,  exceptional  items  charged to Group
operating loss  (excluding  joint ventures)  totalled  GBP211 million,  of which
GBP24  million  was  charged to cost of sales and GBP187  million was charged to
administrative expenses.

Of the total,  exceptional  restructuring and  reorganisation  costs amounted to
GBP195  million.  Impairment  of  tangible  fixed  assets,  relating  mainly  to
impairment of the Group's remaining mobile assets and legacy operations in South
Africa, and a provision for onerous leases amounted to GBP31 million. These were
partially offset by exceptional income of GBP15 million arising from the release
of  previously  established  exceptional  provisions  with  respect  to  certain
doubtful  debtors  mainly  in the  United  Kingdom  and to the  settlement  of a
litigation relating to IT costs at a lower level than originally envisaged.

The exceptional restructuring costs related mainly to the restructuring of the
Group's supply chain and other facilities including fixed asset impairments
associated with the downsizing of the Core business (GBP103 million) and costs
associated with headcount reductions (GBP67 million). The balance relates mainly
to costs associated with the Group's financial restructuring.

A further review of the carrying value of the Group's fixed assets, including
goodwill was undertaken at 30 September 2002. The average discount rate applied
to the future cash flows was 15 per cent and was based upon a weighted average
cost of capital percentage. The results of the review indicated that no further
goodwill impairment charge was necessary for the 6 months to 30 September 2002.
However, due to the significant uncertainties over the timing and extent of any
recovery in the telecommunications market, the Board acknowledges that the Group
is likely to have to continue to review its assumptions against future
performance.

In addition,  the Group recorded GBP18 million of exceptional  costs in relation
to its share in  associates  and GBP31  million  relating to the  impairment  of
intangible assets in its joint ventures.

Exceptional items charged to Group operating loss (including joint ventures) in
the six months to 30 September 2001 totalled GBP4,502 million and related mainly
to charges to write down goodwill and tangible fixed assets, to increase
doubtful debt provisions and to increase provisions for slow-moving and obsolete
inventory. Restructuring and reorganisation charges totalled GBP293 million.

Non-Operating Exceptionals

For the six months to 30 September 2002, non-operating exceptional charges
amounted to GBP17 million. This comprised a GBP5 million net loss on disposal of
discontinued operations, a GBP9 million net loss on disposal of fixed assets and
investments in continuing operations and a GBP3 million loss relating to the
Group's share of associates' non-operating exceptional charges.

In discontinued operations, the loss on disposal of Strategic Communications
(GBP41 million) was partially offset by the release of provisions relating to
Medical Systems and other previously completed disposals.

Of the GBP9 million loss in continuing operations, GBP40 million related to the
write-down of some of the Group's investments in line with its accounting policy
whereby listed investments are marked to their market value at the end of each
reporting period and unlisted investments are booked at their net realisable
value. This was partially offset by a GBP28 million curtailment gain associated
with retirement benefits arising mainly from the disposal of the Group's share
in GDA, GBP12 million gain on property disposals and a net GBP9 million charge
relating to current and prior period disposals and business closures and other
provision movements.

INTEREST AND FINANCE INCOME

In the six months to 30 September  2002, the Group's net interest  charge to the
Profit and Loss  Account  was GBP106  million  (H1 2002:  GBP122  million).  The
interest charge decreased as a result of the Group's reduced net debt position.

The charge during the period mainly comprised approximately GBP64 million of
interest charged on the Group's bond debt and approximately GBP52 million of
interest charged on the Group's Syndicate Bank debt, partially offset by
interest income on the Group's cash balances and repayment supplement on tax
refunds.

Net finance income amounted to GBP2 million.

TAXATION

The tax charge on ordinary  activities was GBP10 million in the period  compared
with a credit of GBP36 million in the first half of the previous  year.  The net
tax credit on exceptionals was GBPnil (H1 2002: GBPnil).

GOODWILL AMORTISATION

The Group incurred a charge of GBP55 million for goodwill  amortisation  for the
six months to 30 September  2002  compared to a charge of GBP350  million in the
corresponding  period of the  previous  year.  This  significant  reduction is a
result of the reduced  carrying  value of goodwill on the Group's  balance sheet
following the exceptional goodwill impairment charges in the year ended 31 March
2002.

EARNINGS PER SHARE

Basic and diluted loss per share, which reflects goodwill amortisation and
exceptional items was 26.2 pence (H1 2002: loss of 182.3 pence).

The loss per share excluding goodwill amortisation and exceptional items was
13.1 pence compared to a loss per share of 10.7 pence in the first half of the
previous year.

DIVIDEND

In the light of the Group's ongoing financial restructuring, the Board has
decided not to propose the payment of a dividend for the year ending 31 March
2003.


FINANCIAL CONDITION

Balance Sheet

Three main factors have contributed to the overall change in shape of the
Group's balance sheet during the first half of the financial year: i) the
disposal of Strategic Communications; ii) the losses incurred during the period
and iii) the further market decline and continued downsizing of Marconi's Core
business.

Net Assets/Liabilities

As at 30  September  2002,  the Group had net  current  liabilities  of GBP1,027
million  compared to net current  liabilities  of GBP662  million as at 31 March
2002. As at 30 September  2002, net  liabilities  before net retirement  benefit
deficits  stood at GBP2,104  million  compared  to GBP1,420  million at 31 March
2002. The increase in net liabilities was mainly due to the loss incurred during
the period.

Fixed Assets

The GBP672 million of goodwill on the balance sheet at 30 September 2002 relates
mainly to the acquisitions of GPT and Reltec and businesses  acquired from Nokia
and Bosch.  The decrease from GBP877  million at 31 March 2002 arose as a result
of the disposal of Strategic  Communications  (GBP121 million), the amortisation
charge  incurred  during the period (GBP54  million),  currency  effects  (GBP21
million)  and a reduction  of GBP9  million due to the lapsing of certain  share
options relating to businesses acquired in previous financial years.

Tangible  assets  decreased by GBP193 million from GBP522 million at 31 March to
GBP329 million at 30 September 2002. This was mainly due to depreciation  (GBP79
million),  the disposals of Strategic  Communications  and Applied  Technologies
(GBP56  million),  fixed asset  impairments  as a result of the  downsizing  and
restructuring  of the  Core  business  (GBP49  million),  and  foreign  exchange
movements.  Capital spend during the period was restricted to items essential to
support the business.

Investments  decreased  by GBP129  million  from  GBP250  million at 31 March to
GBP121 million at 30 September 2002. This was mainly due to the Group's share of
the  losses  of  Easynet  and  write  downs of a  number  of the  Group's  other
investments.

Working Capital

The disposal of Strategic Communications led to a reduction of GBP162 million in
net stock and  contracts  in  progress,  a  reduction  of GBP318  million in net
debtors  and a  reduction  of GBP320  million  in  trade,  other  creditors  and
accruals.

At a Group level,  net stock and contracts in progress  reduced by approximately
GBP364 million to GBP356 million (31 March 2002:  GBP720 million).  In the Core,
net stock and contracts in progress reduced by GBP177 million.  GBP25 million of
this reduction  related to the  additional  stock  provisions  raised during the
period.  Significant improvement in the Group's process to align the purchase of
new  inventory  with  forecast  sales demand has been a major driver  behind the
inventory  reduction  achieved during the period. The increase in Core net stock
turns  from 4 to 5.1  reflects  this  improved  utilisation  and  management  of
inventory.

Group net debtors  decreased by  approximately  GBP435 million to GBP862 million
(31  March  2002:  GBP1,297  million).  Core  net  trade  debtors  decreased  by
approximately  GBP105 million partly as a result of the reduced  trading volumes
during the period and partly as a result of the Group's focus on the  management
of debtor collection and overdue debts.

Net Core trade debtor days  increased  from 87 in March 2002 to 107 in September
2002. The low level in March 2002 reflects the impact of the one-off sale of SDH
inventory  to BT in the final  quarter  of the  previous  year.  Excluding  this
impact,  net trade  debtor days at March stood at 103.  The increase of 3 debtor
days  compared  to the  September  position of 104  published  in the Group's Q2
trading update relates to a reclassification from other debtors to trade debtors
following  finalisation of the Group's interim accounts.  The level of net trade
debtor days remains high mainly as a result of sales in Southern Europe and APAC
where payment terms tend to be significantly longer than average.

Other debtors and prepayments in the Core increased by GBP27 million to GBP190
million. This was a mainly due to an increase in prepayments on annual contracts
payable at the beginning of the financial year.

Trade,  other creditors and accruals fell from GBP1,632 million at 31 March 2002
to GBP1,126 million, a reduction of GBP506 million.  Trade creditors in the Core
were  reduced by GBP65  million to GBP262  million.  Core  trade  creditor  days
remained  stable during the period at 54 days after adjusting the March position
to exclude the one-off  impact of the sale of SDH  inventory  to BT in the final
quarter of the previous year.  Other  Creditors and accruals in the Core reduced
by GBP243  million to GBP505  million due largely to the  conversion of interest
swap  arrangements  into loans,  the payment of accrued  interest on the Group's
euro bonds and a payment made to Court in relation to litigation  concerning the
Group's joint venture, Ultramast.

Provisions

Provisions for liabilities and charges stood at GBP456 million at 30 September
2002, a net reduction of GBP49 million compared to March 2002 (GBP505 million).

Share option and  restructuring  provisions  accounted for GBP176 million (March
2002:   GBP179   million)  and  GBP69  million   (March  2002:   GBP96  million)
respectively.  The  remainder  includes  provisions  for  warranty  and contract
losses,  industrial injury claims, supplier obligations and provision related to
previous disposals.

In addition to the normal movements in warranty and contract loss provisions,
provisions have been increased to provide for losses on industrial injuries.
These movements were offset by disposals and currency movements.

Retirement Benefits

The Group adopted accounting standard FRS17 "Retirement benefits" in the year
ended 31 March 2002.

The net  retirement  benefit  deficit  increased  by GBP313  million from GBP126
million at 31 March 2002 to GBP439 million at 30 September.  This was mainly the
result of adverse variances between the actuarial assumptions and actual results
for returns on plan assets and discount rates used to value  liabilities.  These
actuarial  assumption  losses  are  reflected  through  the  Statement  of Total
Recognised Gains and Losses.

The main component of the pension  liability at 30 September 2002 is the deficit
on the funded UK plan  (GBP298  million).  The  balance  relates  to  retirement
benefit plans in Germany, Italy and the United States.

The UK Plan's exposure to equity markets is limited to 21 per cent of plan
assets totalling GBP2,355 million. The remaining scheme assets are held in bonds
(72 per cent) and property and cash (7 per cent).

In assessing the funding rate,  the actuary uses a different set of  assumptions
to that  required by the FRS17  accounting  standard and takes a broader view of
the  fund's  income  generating  capacity  over  a  longer  period.  Based  on a
preliminary  view of the Group's latest  tri-annual  actuarial  review of the UK
plan,  Marconi and the Trustees of the plan have agreed  adjustments  to pension
contributions  with  effect  from 6 April  2003.  While  the rate of  employer's
contributions  will remain  unchanged  at 8.2 per cent of  pensionable  payroll,
these  adjustments  will have the effect of  reducing  the funding to cover past
service deficit to GBP7 million per annum (previously  recommended GBP16 million
per annum).

At GBP23 million,  the operating charge relating to retirement  benefits for the
six months ended 30 September  2002 was lower than the  corresponding  charge in
the previous year (H1 2002:  GBP26  million) due to a reduction in the number of
plan members.

The Group  recognised  curtailment  and  settlement  gains during the  reporting
period of GBP66  million.  These  related  mainly to the  disposal of  Strategic
Communications and the Group's 50 per cent stake in GDA and have been recognised
within non-operating exceptional items.

Cash Flow

The Group incurred a GBP112 million cash outflow before use of liquid  resources
and financing  during the first half. The main components of this outflow were a
net cash  outflow from  operating  activities  before  capital  expenditure  and
exceptional items of GBP142 million,  an exceptional cash outflow from operating
activities of GBP186 million,  net interest paid of GBP133 million and other net
cash outflows of GBP38 million.  These  outflows were  partially  offset by cash
inflows from disposals of GBP387 million.

Operating Cash Flow

Operating  losses  of  GBP285  million  partially  offset  by  depreciation  and
amortisation  of GBP133  million and a GBP10  million  cash inflow from  working
capital  movements led to the Group's  operating  cash outflow of GBP142 million
during the period. After capital  expenditure,  the Group operating cash outflow
was GBP169 million.

The Group  recorded  significant  progress in reducing  operating  cash outflows
within the period,  the outflow of GBP117  million after capital  expenditure in
the  first  quarter  reducing  to GBP52  million  in the  second  quarter.  This
improvement was predominantly  driven by progress within the Core business where
operating cash outflow after capital  expenditure  reduced from GBP81 million in
the first quarter to GBP43 million in the second  quarter.  This was a result of
the reduced  operating  losses (Q1:  GBP115  million;  Q2: GBP90m) and increased
contribution  from working capital (Q1: GBP8 million;  Q2: GBP22 million).  This
GBP30  million  reduction in working  capital  during the first half was largely
driven by improved utilisation of inventory,  partially offset by a reduction in
creditors.

Capital Expenditure and Financial Investment

Capital expenditure  amounted to GBP27 million during the period, of which GBP19
million related to the Core.  Marconi has maintained  capital  expenditure  well
below the level of depreciation, which amounted to GBP79 million, of which GBP70
million  related to the Core. Core capital  expenditure is generally  focused on
development  models,  test  equipment,  sales  demonstration  equipment  and R&D
laboratory  equipment.  During the first  half,  the  majority  of Core  capital
expenditure was incurred in Optical Networks and BBRS.

Financial investments contributed a GBP2 million cash inflow during the period.
This related mainly to proceeds from property disposals largely offset by a cash
payment made to Court in relation to a litigation concerning the Group's joint
venture, Ultramast.

Returns on Investments and Servicing of Finance

Net interest paid during the period amounted to GBP133 million comprising mainly
interest paid on the Group's  Syndicate Bank and bond debt,  partially offset by
interest  received  on a refund  relating  to tax paid in prior years and on the
Group's cash balances.  Interest paid on the Group's outstanding euro and yankee
bond debt amounted to approximately GBP104 million. This comprised GBP44 million
paid on 2 April, the first business day following the bond coupon due date of 30
March 2002 and GBP60  million  interest due and accrued up to 15 September  2002
and paid prior to 30 September 2002. Approximately GBP52 million of interest was
paid on the Group's Syndicate Bank debt.

As part of the proposed  restructuring,  GBP260  million is to be distributed to
the relevant scheme creditors,  of which GBP95 million represents the payment of
due and accrued  interest.  Of this GBP95  million,  GBP8 million was paid on 30
August 2002,  GBP66  million was paid on 15 September  2002 and GBP4 million was
paid on 30 September 2002. In addition,  after the period end, GBP14 million was
paid on 15 October 2002 and GBP3 million was paid on 4 November 2002.

Exceptional Cash Flows

The Group incurred operating exceptional cash costs of GBP186 million during the
first half of the year. Over half of this amount related to the direct cash cost
of  severance  payments  and  site  closures  in  the  context  of  the  Group's
operational restructuring and reorganisation.  The balance relates to cash costs
associated  with the Group's  manufacturing  outsourcing  programme and payments
made under onerous contracts and as a result of supplier  liability claims.  The
payment of fees and expenses to advisors in the context of the Group's financial
restructuring is also included in operating exceptional cash flows.

Cash Flows from Acquisitions and Disposals

Net proceeds from acquisitions and disposals led to a cash inflow of GBP387
million during the first half of the year. This related mainly to the disposals
of Strategic Communications and Applied Technologies, partially offset by the
payment of transaction-related costs and fees.

Tax Paid

The Group paid GBP13 million net of repayments in relation to tax including US
state taxes on gains on disposals. There were no tax payments or receipts
relating to hedging arrangements during the period.

Net Debt

Net debt was GBP2,846  million at 30 September 2002 compared to GBP2,865 million
at 31 March 2002.  The decrease of GBP19  million  results from the Group's cash
outflow of GBP112  million,  a favourable  foreign  exchange  movement of GBP168
million and GBP37 million of other non-cash  movements relating to interest swap
arrangements  converted  to new  loan  agreements  during  the  period  and debt
transferred to Finmeccanica SpA upon disposal of Strategic Communications.

At 30 September  2002, net debt comprised  GBP3,917  million of gross  financial
debt made up of  GBP1,695  million  of Euro and US dollar  bond  debt,  GBP2,117
million of Syndicate Bank debt (including  GBP51 million as at 30 September 2002
relating to the conversion of interest swap  arrangements to new US dollar loans
with  Syndicate  Banks during the period) and GBP105  million of  bilateral  and
other bank debt and GBP1,071 million of cash.

Syndicate Bank and Bond Debt

At 30 September 2002, drawings under the Group's remaining syndicated facility
amounted to an equivalent of GBP2,066 million, comprising of actual drawings of
GBP650 million and US$2,226 million.

At 30 September 2002, Marconi had yankee bond debt outstanding with principal
US$1,539 million (GBP979 million) and euro bond debt outstanding with principal
EUR1,175 million (GBP739 million). The difference between the principal amounts
totalling GBP1,718 million and the balance sheet value of bond debt totalling
GBP1,695 million relate to discounts and related fees.

The sterling  equivalent  amounts of Syndicate  Bank debt and bonds  outstanding
reduced  compared  to the  respective  values  at 31 March  2002 as a result  of
foreign  exchange  translation.  In addition,  interest  rate swap  arrangements
totalling  approximately  GBP54  million were  converted to new loan  agreements
during the period.

Current Liquidity Position

Marconi has funded its liquidity requirements mainly through a combination of
internally generated funds, bank borrowings, debt issues in the capital markets
and the disposal of non-core businesses. The Group is currently unable to
arrange any new lending facility or to raise new funds through the issuance of
debt or equity securities. Consequently, Marconi has little or no ability to
obtain new external funding and does not expect to have such ability unless and
until the proposed Restructuring is complete.

As  previously  disclosed,  the  majority  of the  Group's  cash  resources  are
currently  held in  secured  accounts  which are  subject  to  interim  security
arrangements in favour of the Group's Syndicate Banks and bondholders (including
the bond  trustees)  and also to  certain  ESOP  derivative  providers  who have
committed  to support the  proposed  Restructuring.  The secured  accounts  were
created at the end of April 2002 in  accordance  with the  previously  disclosed
lock  box  arrangements  entered  into in  favour  of the  Syndicate  Banks  and
bondholders.  The interim  security  arrangements  contemplated  by the Heads of
Terms were  implemented  on 13 September  2002. At that time, the balance of the
secured  accounts was  approximately  GBP866 million.  At 30 September 2002, the
balance of the secured cash amounted to GBP735  million.  The Group is dependent
on  amounts  available  to it from  the  secured  amounts  in  order to meet its
short-term liquidity needs.

Prior to the release of interim security and so long as an enforcement event
does not occur, releases from the secured accounts will be approved in
accordance with the Group's revised monthly cash flow forecast, subject to
specified maximum amounts. This schedule takes account of the Group's
anticipated cash inflows and outflows, and is consistent with the Group's
expectations as to its liquidity needs in the period prior to the expected
completion of the Restructuring.

At 30 September 2002, the Group had a total restricted cash balance,  defined as
cash  pledged or advanced as  collateral,  of GBP872  million.  Of this,  GBP735
million reflects the cash in the secured accounts described above, GBP79 million
reflects  cash  collateral  placed  against  bonding  facilities;  GBP18 million
reflects  cash in the  Group's  captive  insurance  company  and  GBP15  million
reflects  cash  deposited  against  secured loans in Italy.  In addition,  GBP25
million has been placed in an escrow account  pending  determination  of certain
claims of the Group's ESOP derivative providers in respect of certain previously
disposed companies (cf "Share Price Risk" for further information).

Of the Group's  GBP199  million  unrestricted  cash held  outside of the secured
accounts as at 30 September  2002,  GBP124  million was a combination of cash in
transit and global  working  capital  balances with the remaining  GBP75 million
held in money market deposits in the Group's Treasury centres.

Group Financial Management

Treasury Policies and Organisation

The Group's treasury activities are coordinated by its Treasury function which
operates in accordance with policies and procedures approved by Marconi's Board
of Directors. It does not operate as a profit centre. Treasury advises
operational management on treasury matters and undertakes all derivative
transactions except certain forward exchange contracts relating to the hedging
of foreign currency transaction exposures arising in the operating businesses
which have in the past been managed by those operating units as described below.
All treasury related transactions undertaken by the Group's operating businesses
are required to be in accordance with guidelines laid down by the central
treasury function and comply with the Group risk management policies.

Responsibility for the management of working capital, other than cash, is
undertaken by the individual businesses. Cash balances at individual businesses
are reported to Group Treasury on a daily basis for material business units and
on a weekly basis for other business units. Group Treasury seeks explanations
for any significant movements. In addition, the cash movements of each business
unit are monitored on a weekly basis against rolling forward projections and
these forecasts are used to monitor likely future trends in cash balances. In
addition, capital expenditure is budgeted, reported and controlled on a
segmental basis.

Group Treasury oversees the management of the Group's cash and borrowings. At
present, these arrangements are subject to the interim security over Marconi
Corporation's cash balances described above. Each business has its own bank
accounts. The main centres for cash management are in the United Kingdom, United
States and Italy, where Group Treasury staff conduct cash management activities.
Some businesses have had in the past and may have in the future limited access
to local overdraft facilities with banks to meet operational funding
requirements. The cash balances of the businesses are effectively managed so
that the cash surpluses of the Group are used by these treasury centres to fund
businesses with net cash outflows through inter-company cash transfers, which
may be on a secured or unsecured basis. In accordance with the Letters of
Undertaking dated 25 April 2002 and 30 May 2002 signed between Marconi and its
Syndicate Banks, there are certain restrictions on funding of subsidiary
companies from central Group Treasury. However, these undertakings do not
restrict activities conducted by companies in the normal course of trading. The
Group manages balances of all the accounts on a daily basis. The remaining
surplus funds are invested in money market deposits.



Financial Market Risks

The main risks faced by the Group in the financial markets are liquidity risk,
interest rate risk, foreign exchange risk and share price risk.



Liquidity Risk

For a discussion regarding liquidity risk, see "Current Liquidity" section
above.



Interest Rate Risk

It has in the past been Group policy to maintain at least 50% of debt at fixed
rates of interest. The term structure of interest rates was managed in
observance of this policy using derivative financial instruments such as
interest rate swaps. However, due to the Restructuring process described above,
this has been superceded by the requirement to manage immediate liquidity
including the cancellation all outstanding derivatives positions. Consequently,
during the first half of the financial year, certain out-of-the-money interest
rate swap arrangements were converted to new loan agreements as previously
discussed. At 30 September 2002, 48 per cent of the Group's interest-bearing
borrowings were at fixed rates after taking account of interest rate swaps. Of
this total, 29 per cent were at fixed dollar rates of interest and 19 per cent
were at fixed euro rates of interest.

In the six months ended  September 30, 2002, the average  interest rate received
on cash and liquid investments was approximately 2.4 per cent per annum, and 100
per  cent  of  deposits  were at  floating  rates.  The  largest  proportion  of
investments  was in US dollar  deposits  - the  Group  held an  average  of $856
million in US dollar deposits, earning an average interest rate of 1.75 per cent
per  annum.  These US dollar  deposits  match in part the US  dollar  borrowings
referred to under Syndicate Bank and Bond Debt above.



Foreign Exchange risk

The Group conducts a significant portion of its business activities outside the
United Kingdom in currencies other than sterling. The Group's principal exchange
rate exposures relate to U.S. dollar/pounds sterling and euro/pounds sterling
exchange rates for both transactional and translation related exposures. As a
matter of general policy, the Group enters into foreign currency forward
exchange contracts in the ordinary course of business to protect itself from
adverse currency rate fluctuations on firm contracts where cash receipts or
payments are in a foreign currency different from that of the Marconi business
which is contracting with customers or suppliers. These contracts are executed
with creditworthy banks. Marconi's ability to enter such contracts is currently
restricted by the reduced availability of counter-party banks.

The Group also has overseas subsidiaries that earn profits and whose net assets
are denominated in foreign currencies. It is not the Group's policy to use
derivatives to hedge exposures arising from the translation of these overseas
profits and net assets into pounds sterling. However, approximately 83 per cent
of gross borrowings were denominated in foreign currencies in order to form a
hedge for investments in currencies other than sterling. Of these, 63 per cent,
denominated in U.S. dollars, formed a hedge for the Group's investment in the
United States, and 20 per cent, denominated in euro, formed a hedge for the
Group's investment in the euro zone.

If the pound had strengthened such that the average exchange rates used in the
translation of the Group's overseas earnings changed by 10 per cent, our
reported income from continuing operations would have been reduced by 7.1 per
cent, in the year ended 30 September 2002 (twelve months ended 31 March 2002:
4.6 per cent).



Share price risk

The Group has, in the past, issued share options to its employees under a number
of different option plans, collectively known as the Employee Share Option Plans
("ESOP"). Under these plans, options may be satisfied by way of a transfer of
existing Marconi ordinary shares acquired in the market by an employee trust or
other vehicle, or, under some of the plans only, by an issue of new Marconi
shares.

As previously disclosed, during the first half of calendar year 2000, in order
to hedge part of the potential cost of the plans estimated at that time, the
Marconi Employee Trust entered into contracts with three banks (the "ESOP
derivative providers") to purchase a total of 40 million shares in the future at
prices which were fixed at the date of contract, of which 38.5 million remain
outstanding. The Group's maximum exposure under the contracts is GBP337 million,
plus accrued finance charges. This level of exposure had accrued as at 30
September 2002. For every 10 per cent movement in the share price, the change in
the fair value of these contracts is immaterial. Certain of the contracts
require the Marconi Employee Trust to deposit cash collateral with the
derivative providers if the share price falls to certain levels stipulated in
the contracts. Marconi Corporation plc has, in the past, funded the provision of
this collateral. At 30 September 2002, GBP214 million of collateral, the maximum
amount of collateral payable under these contracts, had been paid. No further
collateral will become due.

Due to the substantial deterioration in the Group's share price, only limited
amounts of options with zero exercise price have been or are likely to be
exercised.

The  uncollateralised  exposure  under the ESOP  derivative  contracts  as at 30
September  2002 is  comprised  of principal  of GBP123  million,  together  with
accrued finance charges of GBP44 million.

Under the Heads of Terms, the Group expects to implement separate arrangements
for the Group's ESOP derivative providers in connection with the Restructuring.
These arrangements are conditional on the commitment of the respective ESOP
derivative providers to support the Restructuring. To date, one of the Group's
three ESOP derivative providers has given such a commitment and an escrow
agreement has been entered into with this ESOP derivative provider to give
effect to these arrangements. The arrangements made with this party, and, if
they commit to support the Restructuring (with the consent of the relevant
parties) with the other ESOP derivative providers, entail the following:


  - if an enforcement event occurs in connection with the interim security
    arrangements, a rateable portion (up to a maximum of GBP145 million) of the
    remaining part of the GBP866 million held in the secured accounts will be
    set aside pending determination of any claims which the participating ESOP
    derivative providers may have against Group companies other than Marconi
    plc. The participating ESOP derivative providers will lose these rights if
    any ESOP derivative provider precipitates an insolvency event with respect
    to a material Group company; and

  - otherwise, as part of the schemes of arrangement, cash up to a maximum of
    GBP145 million is to be set aside in an escrow account pending these claims.

These arrangements are in addition to the existing arrangements implemented as
part of the Group's recent disposal of its Strategic Communications business, in
which GBP25 million was set aside in an escrow account pending determination of
any claims which the ESOP derivative providers may have had against the
Strategic Communications companies. As a result, a total of up to GBP170 million
may be set aside pending determination of any claims which the ESOP derivative
providers may have against Group companies other than Marconi plc.

Insurance Risk Management

Marconi manages centrally the purchase of global insurance policies in respect
of major insurable risks, including property (material damage/business
interruption), directors' and officers and public and products liability. The
use of global policies and centrally appointed brokers allows the Group to
improve internal control and optimise the overall level of retained risk. Risk
management and insurance spend are concentrated on those insurable risks which
are considered potentially catastrophic to the Group as a whole. The Group
continues to work with its insurers and advisers to improve its loss prevention
and mitigation processes. Insurance market conditions are currently very
challenging and premium rates have increased substantially. However, the Group
benefits from good relationships with its major insurers and from some long-term
deals.

Vendor Finance

Marconi, like its competitors, continues to experience demand for financing from
its customers. However, this demand has decreased significantly due to market
conditions and the Group's focus on its core base of incumbent carrier
customers. When the Group has supported customer financing requests, it has
significantly limited its own risk by: i) leveraging funds from third party
financiers' having strategic interests aligned with the Group, and ii)
developing innovative commercial alternatives that do not involve long-term cash
investments from Marconi. Through these actions, the Group has satisfactorily
accommodated most customer financing requests and will not require Group cash
resources to fund these activities in the foreseeable future.

As  at  30  September  2002,  the  Group  had  vendor  finance   commitments  of
approximately GBP68 million of which GBP54 million had been drawn. The reduction
compared to  commitments of GBP100 million at 31 March 2002 was primarily due to
an agreement  with a customer to cancel  vendor  finance  commitments  which had
become unlikely to be drawn.

In addition, the Group uses export credit agencies to assist in managing
political and credit risks on major contracts and makes extensive use of export
credit insurance in respect of small to medium-sized contracts.

Some  customers  in the  telecommunications  market  require  that bank bonds or
surety bonds (those  issued by  insurance  companies)  are provided to guarantee
performance of the supplier.  Marconi Group companies had GBP221 million of such
bonds  outstanding  as at 30  September  2002  with  both  banks  and  insurance
companies world-wide.  The reduction from GBP500 million of bonds outstanding at
31 March 2002 was mainly the result of the disposal of Strategic Communications.
Some of  these  facilities  are  covered  by  counter-indemnities  from  Marconi
Corporation  plc  and  others  have  individual  indemnities  from  other  Group
companies.  The Group's bonding is normally provided on an uncommitted basis. As
a consequence  of the Group's  ongoing  financial  restructuring,  all new bonds
currently have to be cash  collateralised.  Since February 2002, Marconi Bonding
Limited (a special purpose vehicle used for this purpose) has procured the issue
of  approximately  GBP80  million  of  performance  bonding  (on  a  fully  cash
collateralised basis) on behalf of other Group companies.

A maturity profile of all bonds and guarantees outstanding at 30 September 2002
is set out below:

As at                                                            GBPm

30 September 2002
2003 or earlier                                                  74
2004                                                             10
2005                                                             16
2006                                                             45
2007                                                             25
Thereafter                                                        4
No expiry date                                                   46
Total                                                           221

A number of the Group's performance bond arrangements carry rights for the
issuer to call for cash collateral, either unconditionally or upon the
occurrence of certain events. Marconi estimates that as at 30 September 2002,
performance bonds with a face value of approximately GBP89 million have varying
rights to call for cash collateral.

Bonding and guarantee facilities will frequently run beyond the contracted
maturity dates indicated in the table above. In addition, there are a number of
bonds with no expiry date. These may be cancelled by the beneficiaries when the
guaranteed works are completed.

Obligations

Marconi has obligations  beyond the current financial year in terms of long-term
debt, equity forward contracts, finance leases and operating leases. In addition
to the GBP1,727  million of long-term debt and finance leases reported in Note 8
of the Interim Accounts, other long-term financial obligations are as follows:




As at                        Equity Forward       Operating          Total
30 September 2002                 Contracts          Leases
in GBPm
                                                               


2004                                      -              26              26
2005                                    123              23             146
2006                                      -              19              19
2007                                      -              17              17
Thereafter                                -              79              79
Total                                   123             164             287




In addition, at 30 September 2002, the equity forward contract had accrued
interest of GBP44 million.

END/...





Consolidated Profit and Loss Account
                                                                               6 months          6 months        Year to
                                                                                  to 30             to 30             31
                                                                              September         September          March
                                                                                   2002              2001           2002
                                                                                               (restated)
                                                               Note           GBP million         GBP million      GBP million
                                                                                                           

Turnover

Continuing operations                                           2                 1,019             1,499          2,906
Discontinued operations                                         2                    87               950          1,404
                                                                             ----------        ----------     ----------
Group                                                                             1,106             2,449          4,310
Share of joint ventures                                                               -               129            257
                                                                             ----------        ----------     ----------
                                                                2                 1,106             2,578          4,567
                                                                             ----------        ----------     ----------
Operating loss
Group operating loss
      Excluding goodwill amortisation and exceptional items                       (231)             (243)          (474)
      Goodwill amortisation                                                        (54)             (349)          (431)
      Operating exceptional items                               4                 (211)           (4,501)        (5,210)
                                                                             ----------        ----------     ----------
                                                                3                 (496)           (5,093)        (6,115)
Share of operating profit of joint ventures
      Excluding goodwill amortisation and exceptional items                         (4)                 5             11
      Goodwill amortisation                                                         (1)               (1)            (2)
      Operating exceptional items                               4                  (31)               (1)            (6)
                                                                             ----------        ----------     ----------
                                                                                   (36)                 3              3
                                                                             ----------        ----------     ----------
                                                                                  (532)           (5,090)        (6,112)

Group and joint venture operating loss before goodwill          2                 (235)             (238)          (463)
amortisation and exceptional items


Share of operating (loss)/profit of associates
      Excluding goodwill amortisation and exceptional items                        (17)                 5            (1)
      Goodwill amortisation                                                         (5)                 -            (7)
      Goodwill impairment                                                          (27)                 -              -
      Operating exceptional items                                                  (18)                 -          (173)
                                                                             ----------        ----------     ----------
                                                                                   (67)                 5          (181)
                                                                             ----------        ----------     ----------
Operating loss                                                 2,9                (599)           (5,085)        (6,293)


Non-operating exceptional items
    (Loss)/gain on disposal of discontinued operations         4                    (5)                 -            358
    (Loss)/gain on disposal of fixed assets and investments
    in continuing operations                                   4                    (9)             (219)             18
    Merger/demerger items                                      4                      -               294            291
    Group share of associates' non-operating exceptional       4                    (3)                 -              -
    items
                                                                             ----------        ----------     ----------
                                                                                   (17)                75            667
                                                                             ----------        ----------     ----------
                                                                                  (616)           (5,010)        (5,626)

Net interest payable
      Group                                                                       (107)             (123)          (240)
      Share of joint ventures and associates                                          1                 1              2
                                                                             ----------        ----------     ----------
                                                                                  (106)             (122)          (238)

Net finance income
      Group excluding exceptional items                                               2                21             34
      Exceptional gain on repurchase of bonds                                         -                 -            166
                                                                             ----------        ----------     ----------
                                                                                      2                21            200

Loss on ordinary activities before taxation
      Excluding goodwill amortisation and exceptional items                       (356)             (334)          (668)
      Goodwill amortisation and exceptional items                                 (364)           (4,777)        (4,996)
                                                                             ----------        ----------     ----------
                                                                                  (720)           (5,111)        (5,664)

Tax (charge)/credit on profit on ordinary activities
      Excluding tax on goodwill amortisation and                                   (10)                36             21
      exceptional items
      Tax on goodwill amortisation and exceptional items                              -                 -          (231)
                                                                             ----------        ----------     ----------
                                                               6                   (10)                36          (210)

Loss on ordinary activities after taxation                                        (730)           (5,075)        (5,874)
Equity minority interests                                                           (1)               (1)            (1)
                                                                             ----------        ----------     ----------
Loss on ordinary activities attributable to the
equity shareholders and retained loss for the period                              (731)           (5,076)        (5,875)
                                                                             ----------        ----------     ----------

Basic and diluted loss per share                               5                (26.2p)          (182.3p)       (210.6p)
Loss per share excluding goodwill
amortisation and exceptional items                             5                (13.1p)           (10.7p)        (23.2p)




The figures for the six months  ended 30  September  2001 have been  restated to
reflect the adoption of FRS 17 "Retirement benefits".




Summarised Group Balance Sheet
                                                                             30 September    30 September       31 March
                                                                                     2002            2001           2002
                                                                                               (restated)
                                                                                GBP million       GBP million      GBP million
                                                                                                              


Fixed Assets
        Goodwill                                                                      672           1,579            877
        Tangible assets                                                               329             888            522
        Investments                                                                   121             356            250
                                                                               ----------      ----------     ----------
                                                                                    1,122           2,823          1,649
Current Assets
        Stocks and contracts in progress                                              356           1,219            720
        Debtors                                                                       862           2,247          1,297
        Investments                                                                     -              15             15
        Cash at bank and in hand                                                    1,071             573          1,374
                                                                               ----------      ----------     ----------
                                                                                    2,289           4,054          3,406

        Loans and overdrafts                                                      (2,190)         (2,580)        (2,436)
        Trade, other creditors and accruals                                       (1,126)         (1,872)        (1,632)
                                                                               ----------      ----------     ----------
Creditors: amounts falling due within one year                                    (3,316)         (4,452)        (4,068)

                                                                               ----------      ----------     ----------
Net current liabilities                                                           (1,027)           (398)          (662)
                                                                               ----------      ----------     ----------

Total assets less current liabilities                                                  95           2,425            987
Creditors: amounts falling due after more than one year                           (1,743)         (2,402)        (1,902)
Provisions for liabilities and charges                                              (456)           (626)          (505)
                                                                               ----------      ----------     ----------
Net liabilities before retirement benefit surpluses and                           (2,104)           (603)        (1,420)
deficits
Retirement benefit scheme surpluses                                                     -              20             19
Retirement benefit scheme deficits                                                  (439)           (155)          (145)

                                                                               ----------      ----------     ----------
Net liabilities after retirement benefit surpluses and deficits                   (2,543)           (738)        (1,546)
Equity minority interests                                                             (9)            (14)           (12)
                                                                               ----------      ----------     ----------
Equity shareholders' deficit                                                      (2,552)           (752)        (1,558)
                                                                               ----------      ----------     ----------









Consolidated Cash Flow Statement
                                                                              6 months         6 months          Year to
                                                                                 to 30            to 30               31
                                                                             September        September            March
                                                                                  2002             2001             2002
                                                                                             (restated)
                                                                             GBP million        GBP million        GBP million
                                                                                                             

Group operating loss after exceptional items                                     (496)          (5,093)          (6,115)
Operating exceptional items                                                        211            4,501            5,210
                                                                            ----------       ----------       ----------
Group operating loss before exceptional items                                    (285)            (592)            (905)
Depreciation and amortisation                                                      133              480              676
Changes in working capital                                                          10            (154)              239
                                                                            ----------       ----------       ----------
Net cash (outflow)/inflow from operating activities before                       (142)            (266)               10
exceptional items
Exceptional cash outflows from operating activities                              (186)             (95)            (368)
                                                                            ----------       ----------       ----------
Net cash outflow from operating activities after exceptional                     (287)            (366)            (409)
items - continuing operations
Net cash (outflow)/inflow from operating activities after                         (41)                5               51
exceptional items - discontinued operations
                                                                            ----------       ----------       ----------

Net cash outflow from operating activities after exceptional                     (328)            (361)            (358)
items
Dividends and management fees received from
joint ventures and associates                                                        -                4               29
Returns on investments and servicing of finance                                  (133)            (126)            (262)
Tax (paid)/received                                                               (13)               12             (13)
Capital expenditure and financial investment                                      (25)            (290)            (196)
Acquisitions and disposals                                                         387            (363)            1,025
Equity dividends paid to shareholders                                                -             (95)             (95)
                                                                            ----------       ----------       ----------
Cash (outflow)/inflow before use of liquid resources and                         (112)          (1,219)              130
financing
Net cash (outflow)/inflow from management of liquid resources                     (77)               68              186
Net cash (outflow)/inflow from financing
     Issues of ordinary shares                                                       -               11                7
     Net cash (outflow)/inflow from changes in debt and lease                     (62)            1,206              972
     financing
                                                                            ----------       ----------       ----------
(Decrease)/increase in cash and net bank balances repayable on                   (251)               66            1,295
demand
                                                                            ----------       ----------       ----------










Reconciliation of Net Cash Flow to Movements in Net Monetary Debt

                                                                                  6 months       6 months        Year to
                                                                                     to 30          to 30             31
                                                                                 September      September          March
                                                                                      2002           2001           2002
                                                                  Note           GBP million      GBP million      GBP million

                                                                                                           

(Decrease)/increase in cash and net bank balances repayable on                       (251)             66          1,295
demand
Net cash outflow/(inflow) from management of liquid resources                           77           (68)          (186)
Net cash outflow/(inflow) from decrease/(increase) in debt and                          62        (1,206)          (972)
lease financing
                                                                                ----------     ----------     ----------
Change in net monetary debt resulting from cash flows                                (112)        (1,208)            137
Net debt disposed/(acquired) with subsidiaries                                          17            (3)            (3)
Other non-cash changes                                                                (54)              -            162
Effect of foreign exchange rate changes                                                168             96              6
                                                                                ----------     ----------     ----------
Movement in net monetary debt in the period                                             19        (1,115)            302
Net monetary debt at 1 April                                         8             (2,865)        (3,167)        (3,167)
                                                                                ----------     ----------     ----------
Net monetary debt at end of period                                   8             (2,846)        (4,282)        (2,865)
                                                                                ----------     ----------     ----------









Consolidated Statement of Total Recognised Gains and Losses
                                                                              6 months to     6 months to        Year to
                                                                                       30              30             31
                                                                                September       September          March
                                                                                     2002            2001           2002
                                                                                               (restated)
                                                                                GBP million       GBP million      GBP million
                                                                                                              

Loss on ordinary activities attributable to the equity shareholders                 (731)         (5,076)        (5,875)
Deficit on valuation of listed fixed asset investments                                  -            (31)           (30)
Unrealised gain on exchange of businesses                                               -               -              9
Exchange differences on translation                                                   115            (79)           (66)
Tax charge on exchange differences                                                    (3)               -              -
Actuarial loss recognised on retirement benefit schemes                             (373)           (337)          (351)
Tax credit on net retirement benefit items charged in the statement of                  -              68             68
total recognised gains and losses
                                                                               ----------      ----------     ----------
Total recognised gains and losses                                                   (992)         (5,455)        (6,245)
                                                                               ----------      ----------     ----------








Reconciliation of Movements in Equity Shareholders' Interests

                                                                                 6 months        6 months        Year to
                                                                                    to 30           to 30             31
                                                                                September       September          March
                                                                                     2002            2001           2002
                                                                                               (restated)
                                                                                GBP million       GBP million      GBP million
                                                                                                              

Total recognised gains and losses                                                   (992)         (5,455)        (6,245)
Release of provision in respect of shares to be issued                                (5)           (247)          (260)
Group share of associates' shares to be issued                                          3               -              -
Issues of ordinary shares                                                               -              11              8
                                                                               ----------      ----------     ----------
Total movement in the period                                                        (994)         (5,691)        (6,497)
Equity shareholders' interests at 1 April                                         (1,558)           4,939          4,939
                                                                               ----------      ----------     ----------
Equity shareholders' deficit at the end of the period                             (2,552)           (752)        (1,558)
                                                                               ----------      ----------     ----------




Notes

1 Fundamental uncertainty in respect of the application of the going concern
basis

Marconi Corporation plc owes approximately GBP2.1 billion under a syndicated
credit facility which expires on 25 March 2003. Borrowings under the facility
are repayable on demand and no further funds may be drawn under its terms. The
Group also has in issue bonds with a face value of GBP1.7 billion. Marconi plc
guarantees Marconi Corporation plc's debt obligations under the bonds and the
syndicated facility. As at 30 September 2002, net debt stood at GBP2.8 billion.

On 29 August 2002, Marconi plc announced that non-binding indicative Heads of
Terms, which set out the principles for the financial restructuring of Marconi
plc and Marconi Corporation plc, had been concluded with the co-ordination
committee of syndicate banks and an informal ad hoc committee of bondholders.
The non-binding indicative Heads of Terms envisage that the creditors of Marconi
plc and Marconi Corporation plc, other than certain excluded creditors, will be
subject to schemes of arrangement under which creditor claims will be settled in
consideration for cash, new equity and new debt securities of Marconi
Corporation plc. As part of the restructuring Marconi Corporation plc will
become the listed parent for the Group and, following completion of its schemes
of arrangement, Marconi plc will be dissolved.

The non-binding  indicative Heads of Terms envisage a new capital  structure for
the Group that is  appropriate  to a business plan  developed by the Group.  The
implementation  of this capital  structure  involves,  among other  things,  the
payment of GBP165 million of cash and the issue of new equity and new bonds with
a face value,  using 30 September  2002  exchange  rates,  of GBP900  million by
Marconi  Corporation  plc to schemed  creditors  through  the  operation  of the
schemes of arrangement.  The financial restructuring will leave existing Marconi
plc shareholders with 0.5% of the equity in Marconi Corporation plc.

As part of the arrangements to implement the restructuring, the majority of the
Group's cash resources are currently held in secured accounts which are subject
to interim security arrangements in favour of the Group's syndicate banks and
bondholders (including the bond trustees) and also to certain ESOP derivative
providers who have committed to support the proposed Restructuring. At 30
September 2002, the balance of the secured cash amounted to GBP735 million. The
Group is dependent on amounts available to it from the secured amounts in order
to meet its short-term liquidity needs.

Prior to the release of interim security and so long as an enforcement event
does not occur, monthly releases from the secured accounts will be allowed in
accordance with an agreed schedule, subject to specified maximum amounts. This
schedule is consistent with the Group's expectation as to its liquidity needs in
the period prior to the expected completion of the Restructuring.

The interim security is subject to various enforcement events, some of which are
tied to the prospects of successfully completing the restructuring in accordance
with the non-binding indicative Heads of Terms, as amended from time to time.
The occurrence of an enforcement event would materially prejudice the ability of
Marconi plc and Marconi Corporation plc to successfully complete the financial
restructuring. At the date of the approval of these financial statements, no
enforcement event had occurred.

The Group has concluded modifications to the non-binding indicative Heads of
Terms. These revised Heads of Terms are in most respects the same as those
announced on 29 August 2002. Letters of current intention to support the
restructuring and to vote for the Marconi plc and Marconi Corporation plc
schemes have been obtained from the joint lead co-ordinators of the syndicate
banks and from each of the members of the bondholder committee.

The proposed restructuring is dependent on the approval of the Marconi plc and
Marconi Corporation plc schemes of arrangement. Approval of the schemes of
arrangement will be dependent on, among other things, securing the necessary
level of support of the syndicate banks, bondholders and other creditors whose
claims will be compromised, in the relevant creditors' meetings to be held as
part of the scheme of arrangement process, as well as the approval of the
English court and the granting of a permanent restraining order from the U.S.
Bankruptcy Court.

In the light of the information currently available to them, the Directors
believe that the Group's bankers, bondholders and other creditors will support
it in achieving an appropriate capital structure and that all the conditions for
the restructuring will be satisfied. On this basis, the Directors consider it
appropriate to prepare the accounts on the going concern basis. Should the
Group's bankers, bondholders and other creditors cease to support the Group
before the completion of the restructuring, or should all of the conditions for
the restructuring not be met, adjustments would be necessary to record
additional liabilities and to write down assets to their recoverable amount. It
is not practicable to quantify these possible adjustments.





2 Principal activities for 6 months to 30 September

                                                  (Loss)/profit              Turnover                 Net assets
                                                     2002        2001        2002        2001           2002        2001
                                                           (restated)              (restated)                 (restated)
                                                GBP million   GBP million   GBP million   GBP million      GBP million   GBP million
                                                                                                            


Network equipment                                   (179)       (216)         600         943 )
                                                                                              )          451       1,144
Network services                                        5           2         392         505 )
Other (including intra-activity sales)               (31)        (33)         (5)        (27)             11           9
                                               ----------  ----------  ----------  ----------     ----------  ----------
                                                    (205)       (247)         987       1,421            462       1,153
Capital                                              (28)        (40)          32         207           (19)         140
                                               ----------  ----------  ----------  ----------     ----------  ----------
Continuing operations                               (233)       (287)       1,019       1,628            443       1,293
Discontinued operations                               (2)          49          87         950              -         608
                                               ----------  ----------  ----------  ----------     ----------  ----------
                                                    (235)       (238)       1,106       2,578            443       1,901
                                                                       ----------  ----------
Goodwill and goodwill amortisation                   (55)       (350)                                    672       1,564
Operating exceptionals                              (242)     (4,502)
                                               ----------  ----------                             ----------  ----------
                                                    (532)     (5,090)                                  1,115       3,465
Associates                                           (67)           5                                     69          42
                                               ----------  ----------
Operating loss                                      (599)     (5,085)
Non-operating exceptional items, gains less
losses on disposal of subsidiaries
and other fixed assets                               (17)          75
Net interest payable and interest bearing           (106)       (122)                                (2,838)     (4,220)
assets and liabilities
Net finance income                                      2          21
Unallocated net liabilities                                                                            (898)        (39)
                                               ----------  ----------                             ----------  ----------
                                                    (720)     (5,111)                                (2,552)       (752)
                                               ----------  ----------                             ----------  ----------









Analysis of turnover and operating loss before goodwill amortisation and operating exceptionals by territory

                                                 (Loss)/profit by       Turnover by Territory  Turnover by Territory of
                                                Territory of Origin           of Origin               Destination
                                                      2002        2001        2002        2001          2002        2001
                                                            (restated)
                                                 GBP million   GBP million   GBP million   GBP million     GBP million   GBP million
                                                                                                            

United Kingdom                                        (69)       (193)         372         611           273         481
The Americas                                          (57)        (64)         340       1,264           342       1,216
Rest of Europe                                        (90)          25         309         525           293         605
Africa, Asia and Australasia                          (19)         (6)          85         178           198         276
                                                ----------  ----------  ----------  ----------    ----------  ----------
                                                     (235)       (238)       1,106       2,578         1,106       2,578
                                                ----------  ----------  ----------  ----------    ----------  ----------




Goodwill arising on acquisitions is amortised over a period not exceeding 20
years. Separate components of goodwill are identified and amortised over the
appropriate useful economic life. The remaining goodwill on the balance sheet
will be amortised over an average period of approximately 7 years.

Comparative figures have been restated to reflect the changes in the Group
structure during the six months to 30 September 2002. Currently, the net assets
of Network equipment and Network services cannot be separately identified as the
same assets are, generally, used to generate sales in each of these segments.
The results of these segments are separately reportable.

The Marconi share of joint ventures' turnover, profit and net assets are
included in Capital.

Assets and liabilities arising out of the Retirement Benefit Schemes are treated
as unallocated net liabilities.

It is not practical to disclose on a segmental basis, goodwill and goodwill
amortisation as any allocation would be arbitrary.

FRS 17 "Retirement benefits" was adopted in full replacing Statement of Standard
Accounting Practice 24 "Accounting for pension costs" and Urgent Issues Task
Force abstract 6 "Accounting for post-retirement benefits other than pensions".

The figures for the six months ended 30 September 2001 have been restated to
reflect the adoption of FRS 17.





3 Group operating loss (excluding joint ventures)

                                                                    6 months to 30 September 2002
                                                    Continuing        Discontinued    Exceptional items            Total
                                                     GBP million           GBP million            GBP million        GBP million
                                                                                                             

Turnover                                                 1,019                  87                    -            1,106
Cost of sales                                            (842)                (63)                 (24)            (929)
                                                    ----------          ----------           ----------       ----------
Gross profit                                               177                  24                 (24)              177
Selling and distribution expenses                        (152)                (11)                    -            (163)

                                                    ----------          ----------           ----------       ----------
Administrative expenses - other                           (65)                 (6)                (187)            (258)
Research and development                                 (182)                (11)                    -            (193)
Goodwill amortisation                                     (51)                 (3)                    -             (54)
                                                    ----------          ----------           ----------       ----------
Administrative expenses - total                          (298)                (20)                (187)            (505)
Other operating (expense)/income                           (7)                   2                    -              (5)
                                                    ----------          ----------           ----------       ----------
Operating loss                                           (280)                 (5)                (211)            (496)
                                                    ----------          ----------           ----------       ----------









                                                               6 months to 30 September 2001 (restated)
                                                                                            Exceptional
                                                    Continuing         Discontinued               items            Total
                                                     GBP million            GBP million           GBP million        GBP million
                                                                                                            


Turnover                                                 1,499                  950                   -            2,449
Cost of sales                                          (1,141)                (680)               (624)          (2,445)
                                                    ----------           ----------          ----------       ----------
Gross profit                                               358                  270               (624)                4
Selling and distribution expenses                        (246)                 (95)                   -            (341)
                                                    ----------           ----------          ----------       ----------
Administrative expenses - other                          (123)                 (66)               (470)            (659)
Research and development                                 (285)                 (52)                   -            (337)
Goodwill amortisation                                    (334)                 (15)                   -            (349)
Goodwill impairment                                          -                    -             (3,407)          (3,407)
                                                    ----------           ----------          ----------       ----------
Administrative expenses - total                          (742)                (133)             (3,877)          (4,752)
Other operating income/(expense)                             7                 (11)                   -              (4)
                                                    ----------           ----------          ----------       ----------
Operating (loss)/profit                                  (623)                   31             (4,501)          (5,093)
                                                    ----------           ----------          ----------       ----------









                                                                        Year to 31 March 2002
                                                                                            Exceptional
                                                    Continuing         Discontinued               items            Total
                                                     GBP million            GBP million           GBP million        GBP million
                                                                                                             

Turnover                                                 2,906                1,404                   -            4,310
Cost of sales                                          (2,277)                (976)               (830)          (4,083)
                                                    ----------           ----------          ----------       ----------
Gross profit                                               629                  428               (830)              227
Selling and distribution expenses                        (450)                (140)                   -            (590)
                                                    ----------           ----------          ----------       ----------
Administrative expenses - other                          (222)                 (86)               (703)          (1,011)
Research and development                                 (547)                 (81)                   -            (628)
Goodwill amortisation                                    (406)                 (25)                   -            (431)
Goodwill impairment                                          -                    -             (3,677)          (3,677)
                                                    ----------           ----------          ----------       ----------
Administrative expenses - total                        (1,175)                (192)             (4,380)          (5,747)
Other operating income/(expense)                            12                 (17)                   -              (5)
                                                    ----------           ----------          ----------       ----------
Operating (loss)/profit                                  (984)                   79             (5,210)          (6,115)
                                                    ----------           ----------          ----------       ----------





The Group disposed of Medical, Data and Commerce Systems during the year to 31
March 2002 and the Strategic Communications business during the six months ended
30 September 2002. It is these activities which are shown as discontinued
operations in the note above.

Exceptional items are shown in further detail in note 4.



4 Exceptional items

In the year ended 31 March 2002, the Directors provided against several
categories of asset and provided for additional liabilities incurred due to the
down turn in the performance of several of the Group's businesses. In addition,
the Group incurred restructuring costs and charges associated with implementing
new IT systems across the Group. These (charges)/credits have been updated in
the light of subsequent experience (including the need to continue the
restructuring of the Group's activities) and are analysed as follows:






                                                                       6 months to          6 months to          Year to
                                                                      30 September         30 September         31 March
                                                                              2002                 2001             2002
                                                                                             (restated)
                                                                         GBP million            GBP million        GBP million
                                                                                                              


Stock write-downs and related costs                                              -                (518)            (672)
Restructuring costs                                                           (24)                (106)            (158)
                                                                        ----------           ----------       ----------
Included in cost of sales                                                     (24)                (624)            (830)
                                                                        ----------           ----------       ----------

Impairment of goodwill & tangible fixed assets                                (31)              (3,493)          (3,831)
Restructuring & reorganisation costs                                         (171)                (186)            (324)
Systems implementation costs                                                     7                 (50)             (75)
Releases/(charges) in respect of doubtful debts                                  8                (148)            (150)
                                                                        ----------           ----------       ----------
Included in administrative expenses                                          (187)              (3,877)          (4,380)
                                                                        ----------           ----------       ----------

Group operating exceptionals                                                 (211)              (4,501)          (5,210)
Share of joint ventures' operating exceptional items                          (31)                  (1)              (6)
Share of associates' operating exceptional items                              (18)                    -            (173)
                                                                        ----------           ----------       ----------
Total operating exceptional items                                            (260)              (4,502)          (5,389)
                                                                        ----------           ----------       ----------
(Loss)/gain on disposal of discontinued operations                             (5)                    -              358
(Loss)/gain on disposal of fixed assets and investments in                     (9)                (219)               18
continuing operations
Merger/demerger items                                                            -                  294              291
Group share of associates' non-operating exceptional items                     (3)                    -                -
                                                                        ----------           ----------       ----------
Non-operating exceptional items                                               (17)                   75              667
                                                                        ----------           ----------       ----------







5 Loss per share

Loss per share is calculated by reference to a weighted average of 2,792.6
million ordinary shares (2001 2,784.0 million) in issue during the period.

The effect of share options is anti-dilutive for each period presented and has
therefore been excluded from the calculation of diluted weighted average number
of shares.

An adjusted basic loss per share has been presented in order to highlight the
underlying performance of the Group, and is calculated as set out in the table
below.





Reconciliation of loss per share excluding goodwill amortisation and exceptional
items
                                                                           6 months to 30 September
                                                                     2002                             2001
                                                                 Loss     Loss per share           Loss   Loss per share
                                                                                             (restated)       (restated)
                                                            GBP million              pence      GBP million            pence
                                                                                                            


Loss and basic loss per share                                   (731)             (26.2)        (5,076)          (182.3)
Exceptional items
Operating exceptionals                                            242                8.7          4,502            161.7
Group share of associates' operating exceptionals                  18                0.7              -                -
Non-operating exceptionals                                         17                0.6           (75)            (2.7)
Goodwill amortisation and impairment                               87                3.1            350             12.6
                                                           ----------         ----------     ----------       ----------
                                                                (367)             (13.1)          (299)           (10.7)
                                                           ----------         ----------     ----------       ----------






6 Taxation

The tax charge/(credit) is analysed as follows


                                                                    6 months to 30 September                  Year ended
                                                                                                                31 March
                                                                              2002             2001                 2002
                                                                         GBP million        GBP million            GBP million
                                                                                                              


Subsidiaries
         UK taxation                                                           (1)             (34)                   18
         Overseas taxation                                                      11              (6)                  188
Joint ventures and associates                                                    -                4                    4
                                                                        ----------       ----------           ----------
                                                                                10             (36)                  210
                                                                        ----------       ----------           ----------






7 Equity dividend

The Directors have decided not to propose any dividends for the year ending 31
March 2003.





8 Analysis of net monetary debt
                            At 1 April   Cash flow  Acquisitions    Other non-      Exchange          At 30       At 30
                                  2002               / disposals          cash          rate      September   September
                                                      (excluding       changes    adjustment           2002        2001
                                                        cash and
                                                     overdrafts)
                             GBP million   GBP million     GBP million     GBP million    GBP million      GBP million   GBP million
                                                                                                         


Cash at bank and in hand         1,309       (330)             -             -          (52)            927         299
Overdrafts                       (107)          79             -             -             2           (26)       (317)
                                        ----------
                                             (251)
                                        ----------
                                        ----------
Liquid resources                    65          77             -             -             2            144         182
                                        ----------

Loans falling due
within one year                (2,329)          55            17          (47)           140        (2,164)     (2,263)
after more than one            (1,803)           7             -           (7)            76        (1,727)     (2,183)

year
                                        ----------
                                                62
                                        ----------
                            ----------  ----------    ----------    ----------    ----------     ----------  ----------
                               (2,865)       (112)            17          (54)           168        (2,846)     (4,282)
                            ----------  ----------    ----------    ----------    ----------     ----------  ----------





9 Summary of differences between UK and US GAAP

The interim results have been prepared in accordance with UK generally accepted
accounting principles (UK GAAP) which differs in certain significant respects
from US generally accepted accounting principles (US GAAP). The (increase)/
decrease in operating loss as a result of these differences are as follows:





a) Operating loss


                                                                            6 months to       6 months to        Year to
                                                                           30 September      30 September       31 March
                                                                                               (restated)
                                                                                   2002              2001           2002
                                                                              GBP million         GBP million      GBP million
                                                                                                              


UK GAAP operating loss                                                            (599)           (5,085)        (6,293)
       Joint ventures and associates operating loss/(profit)                        103               (8)            178
       UK GAAP non-operating exceptional items included in US GAAP                   20             (107)             36
       operating income
       UK GAAP operating loss of discontinued operations                             38                18             35
       US GAAP adjustments:
               Share option plans                                                  (11)                 1           (31)
               Long term contract adjustment                                          -                29             30
               Pension valuation and classification differences                     (1)                28             30
               Goodwill amortisation and impairment charges                          51                15          (298)
               Gain/(loss) on sale of businesses                                      5                 -           (68)
               Sale and leaseback                                                  (11)               (6)            (6)
               Other                                                                (4)               (7)            (5)
                                                                             ----------        ----------     ----------
US GAAP operating loss                                                            (409)           (5,122)        (6,392)
                                                                             ----------        ----------     ----------





Certain reclassifications have been made to the 30 September 2001 balances to
reflect the adoption of FRS 17 under UK GAAP, to reflect discontinued operations
and to reflect fair value adjustments on the equity forward contracts on a
consistent basis with the Form 20-F for the year ended 31 March 2002.



b) Explanation of differences between UK GAAP and US GAAP

A description of the relevant accounting principles which differ materially
between UK GAAP and US GAAP is given below.

Joint ventures and associates operating loss/(profit)

Marconi's share of joint venture and associates operating results are reported
within operating loss under UK GAAP but reported after operating loss under US
GAAP.

UK GAAP non-operating exceptional items included in US GAAP operating income

Gains and losses on the disposal of businesses which are not reported as
discontinued operations are reported within non-operating exceptional items
after operating loss under UK GAAP but reported within US GAAP operating loss.



UK GAAP operating loss of discontinued operations

The operating results of businesses discontinued during the period are included
within operating profit up to the date of disposal under UK GAAP. US GAAP
reports these results, including goodwill amortisation and operating
exceptionals, after operating loss. Under US GAAP, the results of Medical
Systems, Data Systems and Mobile are treated as discontinued operations for all
periods presented.

Share option plans

Under both UK and US GAAP, share option plans give rise to compensation expense
when specified criteria are met. The measurement date and calculation of expense
can be different, giving rise to GAAP adjustments to compensation expense as
well as goodwill amortisation if such options are issued in connection with a
business combination.

Long term contract adjustment

An agreement exists for the sale of equipment which has been installed and
accepted by the customer. Under UK GAAP, these types of arrangements qualify for
long-term contract accounting with revenue recorded based on work performed
under the contract. US GAAP does not permit revenue recognition in those
instances where specific criteria has not yet occurred, and where the obligation
for the customer to pay has not yet fallen due. Accordingly, adjustments arise
due to timing differences for recognition under UK GAAP and US GAAP.

Pension valuation and classification differences

Under both UK GAAP and US GAAP, pension costs are provided so as to provide for
future pension liabilities. However, there are differences in the treatment of
actuarial and curtailment gains and losses which give rise to GAAP adjustments
to the pension costs charged against operating loss. Furthermore, under UK GAAP
the notional interest cost associated with the pension and post-retirement
benefit obligation is classified as interest expense, whereas under US GAAP it
is classified within operating loss.

Goodwill amortisation and impairment charges

Differences in the original value of goodwill recognised on an acquisition
between UK GAAP and US GAAP arise as a result of both differences in the fair
value of net assets acquired and different treatment of certain items, for
example share options, with respect to purchase consideration. Such differences
in the calculation of goodwill result in differences in amortisation expense and
impairment charges recognised for periods up to 31 March 2002. With effect from
1 April 2002, the Company has adopted Statement of Financial Accounting
Standards No. 142 "Goodwill and Other Intangible Assets", and accordingly has
ceased amortisation of goodwill and intangibles under US GAAP.



Loss on sale of businesses

Differences in the loss on sale of a business arise as a result of the
differences in the carrying value of the underlying net assets under UK GAAP and
US GAAP.

Sale and leaseback

Under UK GAAP, a gain is recognised upon the sale, at fair value, of a building
provided the leaseback is classified as an operating lease. However, since the
company is entitled to a share of any future appreciation in the value of the
property, US GAAP classifies the transaction as a financing arrangement and no
gain is recognised.




10 Key rates of exchange for GBP1 sterling used for translation in respect of
overseas subsidiaries, joint ventures and associates

                                                       Profit & loss and cash flows        Balance sheet rates at 30
                                                      average rates to 30 September                September

                                                                 2002             2001           2002               2001
                                                                                                         

US Dollar                                                      1.5204           1.4320         1.5726             1.4697
Italian Lira                                                      N/A            3,153            N/A              3,125
Euro                                                           1.5813           1.6282         1.5913             1.6138





11 This interim statement was approved by the Board on 13 December 2002.
Financial information is presented on the basis of the accounting policies of
the Marconi Group as set out in the Annual Report and Accounts for the year
ended 31 March 2002. The interim results should therefore be read in conjunction
with the Marconi 2002 Annual Report and Accounts.

The results for the six months ended 30 September 2002 are unaudited, but have
been reviewed by the auditors. The interim results and the results for the year
ended 31 March 2002 do not comprise statutory accounts for the purposes of
Section 240 of the Companies Act 1985. The 31 March 2002 comparatives have been
extracted from the Group's published accounts for that period which have been
filed with the Registrar of Companies. The audit report on those accounts was
unqualified and did not contain a statement under Section 237 (2) or (3) of the
Companies Act 1985. Comparative figures have been restated to reflect changes in
presentation.

12 The interim report is available to view online at www.marconi.com or copies
are available from the Company Secretary at Marconi plc, 338 Euston Road,
London, NW1 3BT.



Independent review report by Deloitte & Touche to Marconi plc

Introduction

We have been instructed by the Company to review the financial information for
the six months ended 30 September 2002 which comprises the consolidated profit
and loss account, the summarised group balance sheet, the consolidated cash flow
statement, the reconciliation of net cash flow to movements in net monetary
debt, the consolidated statement of total recognised gains and losses, the
reconciliation of movements in equity shareholders' interests and related notes
1 to 12. We have read the other information contained in the Interim Report and
considered whether it contains any apparent misstatements or material
inconsistencies with the financial information.

Directors' Responsibilities

The Interim Report, including the financial information contained therein, is
the responsibility of, and has been approved by the Directors. The Directors are
responsible for preparing the Interim Report in accordance with the Listing
Rules of the Financial Services Authority which require that the accounting
policies and presentation applied to the interim figures should be consistent
with those applied in preparing the preceding annual accounts except where any
changes, and the reasons for them, are disclosed.

Review work performed

We conducted our review in accordance with guidance contained in Bulletin 1999/4
issued by the Auditing Practices Board for use in the United Kingdom. A review
consists principally of making enquiries of Group management and applying
analytical procedures to the financial information and underlying financial data
and, based thereon, assessing whether the accounting policies and presentation
have been consistently applied unless otherwise disclosed. A review excludes
audit procedures such as tests of controls and verification of assets,
liabilities and transactions. It is substantially less in scope than an audit
performed in accordance with United Kingdom auditing standards and therefore
provides a lower level of assurance than an audit. Accordingly, we do not
express an audit opinion on the financial information.

Going Concern - fundamental uncertainty

In arriving at our review conclusion, we have considered the adequacy of the
disclosures made in note 1 of the financial information concerning the Group's
current borrowing facilities and ongoing negotiations with its bankers,
bondholders and other creditors. As indicated in note 1, the going concern
assumption is dependent on the Directors reaching a satisfactory resolution of
the re-financing negotiations with the Group's bankers, bondholders and other
creditors and the proposed schemes of arrangement becoming effective and legally
binding. Should the Group's bankers, bondholders and other creditors cease to
support the Group before the completion of the restructuring, or should all of
the conditions for restructuring not be met, the going concern basis of
preparation would no longer be applicable and adjustments to the consolidated
profit and loss account and summarised group balance sheet would be required to
record additional liabilities and write down assets to their recoverable amount.
It is not practicable to quantify these potential adjustments. In view of the
significance of this fundamental uncertainty, we consider that it should be
drawn to your attention.

Review Conclusion

On the basis of our review, we are not aware of any material modifications that
should be made to the financial information as presented for the six months
ended 30 September 2002.

Deloitte & Touche

Chartered Accountants

London

13 December 2002


                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.


                                       MARCONI PLC



                                       By:     ____M Skelly____

                                       Name:   M Skelly
                                       Title:  Secretary


Date: 16 December 2002