Charles River To Present At June Investor Conferences

Charles River Laboratories International, Inc. (NYSE: CRL) announced today that it will present at four upcoming investor conferences, including:

• Goldman Sachs 33^rd Annual Global Healthcare Conference in Rancho Palos Verdes, California on Tuesday, June 5^th, at 10:00 a.m. PDT (1:00 p.m. EDT);
• Jefferies 2012 Global Healthcare Conference in New York, New York on Wednesday, June 6^th, at 10:00 a.m. EDT;
• William Blair & Company 2012 Growth Stock Conference in Chicago, Illinois on Wednesday, June 13^th, at 10:40 a.m. CDT (11:40 a.m. EDT); and
• Wells Fargo Securities 2012 Healthcare Conference in Boston, Massachusetts on Wednesday, June 20^th, at 9:00 a.m. EDT.

Management will present an overview of Charles River’s strategic focus and business developments.

A live webcast of each presentation will be available through a link that will be posted on the Investor Relations section of the Charles River website at http://ir.criver.com. A webcast replay will be accessible through the same website approximately three hours after each presentation and will remain available for approximately two weeks.