Filed by Automated Filing Services Inc. (604) 609-0244 - PolyMet Mining Corp. - Form 6-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of May, 2008

Commission File Number: 001-32929

POLYMET MINING CORP.
(Translation of registrant's name into English)

1003 - 1177 West Hastings Street
Vancouver, B.C. Canada V6E 2K3
(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.

[ X ] Form 20-F   [               ] Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): [               ]

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): [               ]

Indicate by check mark whether by furnishing the information contained in this Form, the registrant 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 ]

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- _________

SUBMITTED HEREWITH

Exhibits

  99.1 News Release dated May 20, 2008

 

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.

  PolyMet Mining Corp.
  (Registrant)
     
Date: May 20, 2008 By: /s/ Joe Scipioni
   
    Joe Scipioni
  Title: President