Clean Harbors to Present at the Bank of America Merrill Lynch 2012 Industrials & Materials Conference10:15 EDT Thursday, August 23, 2012 NORWELL, Mass. (Business Wire) -- Clean Harbors, Inc. (“Clean Harbors”) (NYSE: CLH), the leading provider of environmental, energy and industrial services throughout North America,today announced that Vice Chairman, President and Chief Operating Officer James M. Rutledge and President, Environmental Services Eric W. Gerstenberg, will be presenting at the Bank of America Merrill Lynch 2012 Industrials & Materials Conference in Boston. Clean Harbors' presentation will take place at 9:30 a.m. (ET) on Thursday, September 6, and will be webcast live. To access the live or archived webcast, visit the “Investor Relations” portion of Clean Harbors' website at www.cleanharbors.com. About Clean Harbors Clean Harbors is the leading provider of environmental, energy and industrial services throughout North America. The Company serves more than 60,000 customers, including a majority of the Fortune 500 companies, thousands of smaller private entities and numerous federal, state, provincial and local governmental agencies. Headquartered in Norwell, Massachusetts, Clean Harbors has more than 200 locations, including over 50 waste management facilities, throughout North America in 37 U.S. states, seven Canadian provinces, Mexico and Puerto Rico. For more information, visit www.cleanharbors.com. Clean Harbors, Inc.James M. Rutledge, 781-792-5100Vice Chairman, President and Chief Operating OfficerInvestorRelations@cleanharbors.comorSharon Merrill AssociatesJim Buckley, 617-542-5300Executive Vice Presidentclh@investorrelations.com