Silver Wheaton Reports Record First Quarter Earnings of US$5.2 Million

April 2, 2005

April 25, 2005

Vancouver, British Columbia - Silver Wheaton Corp. (SLW:TSX) will release 2005 first quarter results on Monday, May 2, 2005 before market opening.

A conference call will be held Monday, May 2, 2005 at 11:00 am (ET) to discuss these results. You may join the call by dialling toll free 1-877-461-2816 or (416) 695-5259 for calls from outside of Canada and the US.

The conference call will be recorded and you can listen to a playback of the call after the event by dialling 1-866-518-1010 or (416) 695-5275. A live and archived audio webcast will be available on the website at www.silverwheaton.com.

Silver Wheaton Corp. will hold an Annual and Special Shareholders Meeting at the Intercontinental Hotel, 225 Front Street West, Toronto, Ontario on Tuesday, May 17, 2005 at 2:00 p.m. (ET).

Silver Wheaton is the only mining company with 100% of its revenue from silver production. Silver Wheaton is debt-free, unhedged and well positioned for further growth.

For further information, please contact:

Julia Hasiwar
Director Investor Relations
Silver Wheaton Corp.
Tel: 1-800-380-8687
Email: info@silverwheaton.com
Website: www.silverwheaton.com