PolyMet to Present at the New York Society of Security Analysts' 9th Annual Metals and Mining Conference

HOYT LAKES, Minn.--(Business Wire)--
PolyMet Mining Corp. (TSX: POM; NYSE: PLM) ("PolyMet" or the "Company") reported
today that Chief Financial Officer Douglas Newby will present the Company at the
New York Society of Security Analysts' 9th Annual Metals and Mining Conference
being held at the Society's offices at 1177 Avenue of the Americas, New York, NY
10021 at 10:55 am EDT on Wednesday, June 3.

A webcast and subsequent playback of the presentation will be available at
www.nyssa.org, with playback also available through www.polymetmining.com.

An updated PowerPoint presentation has been posted at www.polymetmining.com.

About PolyMet

PolyMet Mining Corp. (www.polymetmining.com) is a publicly-traded mine
development company that controls 100% of the NorthMet copper-nickel-precious
metals ore body through a long-term leases 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.
PolyMet Mining Corp. 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 1.5 million man hours
of construction labor and create at least 400 long-term jobs, a level of
activity that will have a significant multiplier effect in the local economy.

This news release 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," and similar expressions, or statements that events, conditions or
results "will," "may," "could," or "should" occur or be achieved. These
forward-looking statements may include statements regarding exploration results
and budgets, reserve estimates, mineral resource estimates, work programs,
capital expenditures, timelines including timelines for third-party studies and
issuance of permits to operate by various government agencies, strategic plans,
the market price of metals, costs, or other statements that are not a statement
of fact. Forward-looking statements address future events and conditions and
therefore involve inherent risks and uncertainties. Actual results may differ
materially from those currently anticipated in such statements due to a variety
of risks, uncertainties and other factors. 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 Form 20-F/Annual Information
Form on file with the SEC and Canadian securities authorities 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 MINING CORP.

Per: "Joe Scipioni"

_______________________

Joe Scipioni, President

Investors:
KCSA Strategic Communications
Todd Fromer, 212-896-1215
tfromer@kcsa.com
or
Garth Russell, 212-896-1250
grussell@kcsa.com
or
Media
PolyMet Mining Corp.
LaTisha Gietzen
VP Public, Governmental and Environmental Affairs
+1(218) 225-4417
lgietzen@polymetmining.com

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