Charles River to Present at Upcoming Investor Conferences

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

• Citi 2012 Global Health Care Conference in New York, New York on Tuesday, February 28th, at 2:30 p.m. EST;
• Cowen and Company 32nd Annual Health Care Conference in Boston, Massachusetts on Tuesday, March 6th, at 10:00 a.m. EST;
• Raymond James 33rd Annual Institutional Investors Conference in Orlando, Florida on Tuesday, March 6th, at 2:50 p.m. EST; and
• Barclays Capital 2012 Global Healthcare Conference in Miami, Florida on Wednesday, March 14th, at 9:30 a.m. EST.

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.