Investor Relations

WILMINGTON, Mass., Mar 16, 2007 (BUSINESS WIRE) -- Charles River Laboratories International, Inc. (NYSE:CRL) announced today the appointment of Stephanie Wells to the role of Corporate Senior Vice President, Marketing and Chief Marketing Officer, effective March 12, 2007. In this newly created position, Ms. Wells will be responsible for establishing global marketing strategies and branding initiatives and will drive the implementation of both. She will also participate as an integral and active member in the strategic planning process of the Company.

Prior to joining Charles River, Ms. Wells was Vice President Worldwide Marketing, Clinical Labs for Ortho-Clinical Diagnostics, a Johnson & Johnson company in Raritan, New Jersey. In that position, she was responsible for the Clinical Laboratory global marketing strategy and implementation and spearheaded several product launches. Ms. Wells also served as Vice President Marketing - Laboratory Testing Business Unit at Bayer Diagnostics. With over twenty-five years of healthcare business experience, Ms. Wells brings with her an international background which includes extensive sales, marketing and general business management experience.

James C. Foster, Chairman, President and Chief Executive Officer of Charles River noted, "Stephanie brings a wealth of life sciences marketing experience to Charles River. Her expertise and business acumen will add significant strength to our executive management team. We are very pleased to bring her aboard."

Ms. Wells commented, "I am very enthusiastic to be joining a leading player in the life sciences industry and to be able to further develop the marketing function for the Company as it continues to successfully expand its global businesses."

Ms. Wells holds the equivalent of a bachelor's degree in Medical Laboratory Sciences and Clinical Chemistry from Paddington College, London, England.

About Charles River Laboratories

Charles River Laboratories, based in Wilmington, Massachusetts, partners with global pharmaceutical and biotechnology companies, government agencies, and leading academic institutions to advance the drug discovery and development process, bringing drugs to market faster and more efficiently. Charles River's 8,000 employees serve clients worldwide. For more information on Charles River, visit our web site at www.criver.com.

SOURCE: Charles River Laboratories International, Inc.

Charles River Laboratories International, Inc.
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Susan Hardy
Corporate Vice President, Investor Relations
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Diana Pisciotta
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