Polymet Mining Corp.: Form FWP - Filed by newsfilecorp.com

ISSUER FREE WRITING PROSPECTUS
Filed pursuant to Rule 433
Registration Statement No. 333-187853
Dated June 3, 2013

100 King Street West, Suite 5700, Toronto, Ontario, Canada, M5X 1C7
Tel: +1 (416) 915-4149

444 Cedar Street, Suite 2060, St. Paul, MN 55101
Tel: +1 (651) 389-4100

www.polymetmining.com

$60.5 MILLION RIGHTS OFFERING

WHY?

WHAT?

WHEN?

HOW?


ADDITIONAL RESOURCES

* * * * *

About PolyMet

PolyMet Mining Corp. (www.polymetmining.com) is a publicly-traded mine development company that owns 100% of Poly Met Mining, Inc., a Minnesota corporation that controls 100% of the NorthMet copper-nickel-precious metals ore body through a long-term lease and owns 100% of the Erie Plant, a large processing facility located approximately six miles from the ore body in the established mining district of the Mesabi Range in northeastern Minnesota. Poly Met Mining, Inc. has completed its Definitive Feasibility Study and is seeking environmental and operating permits to enable it to commence production. The NorthMet project is expected to require approximately two million hours of construction labor, creating approximately 360 long-term jobs, a level of activity that will have a significant multiplier effect in the local economy.

POLYMET MINING CORP.

  Per: "Jon Cherry"
    Jon Cherry, CEO

For further information, please contact:

Corporate Media
Douglas Newby LaTisha Gietzen
Chief Financial Officer VP – Public, Gov't & Environmental Affairs
Tel: +1 (651) 389-4105 Tel: +1 (218) 225-4417
dnewby@polymetmining.com lgietzen@polymetmining.com
   
Investor Relations  
PolyMet MZ North America
Jenny Knudson Pascal Nigen
VP – Investor Relations Senior Vice-President
Tel: +1 (651) 389-4110 Tel: +1 (212) 301-7149
jknudson@polymetmining.com pnigen@mzgroup.us
  www.mzgroup.us


This document contains certain forward-looking statements concerning anticipated developments in PolyMet’s operations in the future. Forward-looking statements are frequently, but not always, identified by words such as “expects,” “anticipates,” “believes,” “intends,” “estimates,” “potential,” “possible,” “projects,” “plans,” and similar expressions, or statements that events, conditions or results “will,” “may,” “could,” or “should” occur or be achieved or their negatives or other comparable words. These forward-looking statements may include statements regarding our beliefs related to the timing of the listing of the Rights on the NYSE MKT and TSX, ability to receive environmental and operating permits, job creation, or other statements that are not a statement of fact. Forward-looking statements address future events and conditions and therefore involve inherent known and unknown risks and uncertainties. Actual results may differ materially from those in the forward-looking statements due to risks facing PolyMet or due to actual facts differing from the assumptions underlying its predictions.

PolyMet’s forward-looking statements are based on the beliefs, expectations and opinions of management on the date the statements are made, and PolyMet does not assume any obligation to update forward-looking statements if circumstances or management’s beliefs, expectations and opinions should change.

Specific reference is made to PolyMet’s most recent Annual Report on Form 20-F for the fiscal year ended January 31, 2013 and in our other filings with Canadian securities authorities and the U.S. Securities and Exchange Commission for a discussion of some of the risk factors and other considerations underlying forward-looking statements.

The TSX has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

PolyMet has filed a registration statement (including a prospectus) with the U.S. Securities and Exchange Commission, for the offering to which this communication relates. Before investing, prospective investors should read the prospectus in that registration statement and other documents the issuer has filed with the U.S. Securities and Exchange Commission, for more complete information about PolyMet and this offering. The documents are available free of charge by visiting EDGAR on the U.S. Securities and Exchange Commission website at www.sec.gov. Alternatively, PolyMet will arrange to send you the prospectus if you request it by calling 1-416 915-4149.