Silver Wheaton to Release 2013 First Quarter

FOR IMMEDIATE RELEASE TSX:SLW April 12, 2013 NYSE:SLW

SILVER WHEATON TO RELEASE 2013 FIRST QUARTER RESULTS ON MAY 10, 2013

Vancouver, British Columbia – Silver Wheaton Corp. (TSX:SLW) (NYSE:SLW) will release 2013 first quarter results on Friday, May 10, 2013, after market close.

A conference call will be held Monday, May 13, 2013, starting at 11:00 am (Eastern Time) to discuss these results. To participate in the live call please use one of the following methods:

Dial toll free from Canada or the US: 1-888-231-8191 Dial from outside Canada or the US: 1-647-427-7450 Pass code: 34709047 Live audio webcast: www.silverwheaton.com

Participants should dial in five to ten minutes before the call.

The conference call will be recorded. You can listen to an archive of the call by one of the following methods:

Dial toll free from Canada or the US: 1-855-859-2056 Dial from outside Canada or the US: 1-416-849-0833 Pass code: 34709047 Archived audio webcast: www.silverwheaton.com

For further information, please contact:

Patrick Drouin Vice President, Investor Relations Silver Wheaton Corp.

Tel: 1-800-380-8687 Email: [email protected] Website: www.silverwheaton.com