Silver Wheaton Completes US$287.5 Million Financing

VANCOUVER - Silver Wheaton Corp. (”Silver Wheaton” or the “Company”) (TSX, NYSE:SLW) is pleased to confirm that it has closed its previously announced bought deal equity financing, including the full amount of the underwriters’ over- allotment option, for aggregate gross proceeds to Silver Wheaton of US$287.5 million. A syndicate of underwriters, led by Genuity Capital Markets and GMP Securities L.P., and including BMO Nesbitt Burns Inc., Scotia Capital Inc., Canaccord Capital Corporation, UBS Securities Canada Inc., Blackmont Capital Inc., HSBC Securities (Canada) Inc., Macquarie Capital Markets Canada Ltd., Merrill Lynch Canada Inc., Raymond James Ltd., RBC Dominion Securities Inc., Salman Partners Inc. and CIBC World Markets Inc., purchased an aggregate of 25,903,750 common shares of Silver Wheaton at a price of US$11.10 per share.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any state in which such offer, solicitation or sale would be unlawful. The securities have not been registered under the United States Securities Act of 1933, as amended, and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements.

ABOUT SILVER WHEATON

Silver Wheaton is the largest silver streaming company in the world. Including the Barrick transaction, forecast 2009 sales are 16 to 18 million ounces of silver and 17,000 ounces of gold, for total sales of 17 to 19 million silver equivalent ounces, growing to approximately 39 million ounces of silver and 20,000 ounces of gold, for total sales of approximately 40 million silver equivalent ounces, by 2013.

CAUTIONARY NOTE REGARDING FORWARD LOOKING-STATEMENTS

The information contained herein contains “forward-looking statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities legislation. Forward-looking statements include, but are not limited to, statements with respect to the future price of silver, the estimation of mineral reserves and resources, the realization of mineral reserve estimates, the timing and amount of estimated future production, costs of production, reserve determination and reserve conversion rates. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as “plans”, “expects” or “does not expect”, “is expected”, “budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or “does not anticipate”, or “believes”, or variations of such words and phrases or statements that certain actions, events or results “may”, “could”, “would”, “might” or “will be taken”, “occur” or “be achieved”. Forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of Silver Wheaton to be materially different from those expressed or implied by such forward-looking statements, including but not limited to: fluctuations in the price of silver, the absence of control over mining operations from which Silver Wheaton purchases silver and risks related to these mining operations, including risks related to fluctuations in the price of the primary commodities mined at such operations, changes in laws and regulations including taxation policies, actual results of mining and exploration activities, changes in project parameters as plans continue to be refined, as well as those factors discussed in the section entitled “Description of the Business - Risk Factors” in Silver Wheaton’s Annual Information Form available on SEDAR at www.sedar.com and in Silver Wheaton’s Form 40-F on file with the U.S. Securities and Exchange Commission in Washington, D.C. Forward-looking statements are based on assumptions management believes to be reasonable, including but not limited to: the continued operation of the mining operations from which Silver Wheaton purchases silver, no material adverse change in the market price of commodities, that the mining operations will operate and the mining projects will be completed in accordance with their public statements and achieve their stated production outcomes, and such other assumptions and factors as may be set out herein. Although Silver Wheaton has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. Silver Wheaton does not undertake to update any forward-looking statements that are incorporated by reference herein, except in accordance with applicable securities laws.

For further information: Brad Kopp, Director, Investor Relations, Silver Wheaton Corp., Tel: +1-800-380-8687, Email: info@silverwheaton.com, Website: www.silverwheaton.com

Source: Silver Wheaton Corp.

For further information: Brad Kopp, Director, Investor Relations, Silver Wheaton Corp., Tel: +1-800-380-8687, Email: info at silverwheaton.com