Clean Harbors Announces Upcoming Conference Presentations

NORWELL, Mass.--(BUSINESS WIRE)--Feb. 16, 2012-- Clean Harbors, Inc. (“Clean Harbors”) (NYSE: CLH), the leading provider of environmental, energy and industrial services throughout North America, today announced that management will be presenting at two upcoming investor conferences.

• On Thursday, March 1 at 11:30 a.m. (ET), Vice Chairman and Chief Financial Officer James M. Rutledge and President, Energy & Industrial Services David M. Parry will present at the Robert W. Baird Business Solutions Conference in Boston.
• On Wednesday, March 7 at 10:25 a.m. (ET), Chairman and Chief Executive Officer Alan S. McKim and Vice Chairman and Chief Financial Officer James M. Rutledge will present at the Raymond James 33^rd Annual Institutional Investors Conference in Orlando, Florida.

To access the live or archived webcasts, 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 50,000 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.

Source: Clean Harbors, Inc.

Clean Harbors, Inc.
James M. Rutledge, 781-792-5100
Vice Chairman and Chief Financial Officer
InvestorRelations@cleanharbors.com
or
Sharon Merrill Associates
Jim Buckley, 617-542-5300
Executive Vice President
clh@investorrelations.com