510 Burrard St, 3rd Floor
Date: April 18, 2016	Vancouver BC, V6C 3B9
	www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: Polymet Mining Corp.

Dear Sirs:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type :	Annual General and Special Meeting
Record Date for Notice of Meeting :	May 18, 2016
Record Date for Voting (if applicable) :	May 18, 2016
Beneficial Ownership Determination Date :	May 18, 2016
Meeting Date :	July 13, 2016
	Hilton Toronto, Osgoode Room,
Meeting Location (if available) :	145 Richmond Street West,
	Toronto, Ontario
Issuer sending proxy related materials directly to NOBO:	No
Issuer paying for delivery to OBO:	No
Notice and Access (NAA) Requirements:
NAA for Beneficial Holders	Yes
Beneficial Holders Stratification Criteria:	Not Applicable
NAA for Registered Holders	Yes
Registered Holders Stratification Criteria:	Not Applicable

Voting Security Details:

Description	CUSIP Number	ISIN
COMMON SHARES	731916102	CA7319161021

Sincerely,

Computershare
Agent for Polymet Mining Corp.