Clean Harbors, Inc. (NYSE: CLH), the leading provider of environmental, energy and industrial services throughout North America, will host its fourth-quarter and full-year 2012 conference call on Wednesday, February 20, 2013 at 9:00 a.m. ET. On the call, Chairman and Chief Executive Officer Alan S. McKim and Vice Chairman, President and Chief Financial Officer James M. Rutledge will discuss Clean Harbors’ financial results, business outlook and growth strategy. Those who wish to listen to the fourth-quarter 2012 conference call webcast should visit the Investor Relations section of the Company’s website at www.cleanharbors.com. The live call also can be accessed by dialing 201.689.8881 or 877.709.8155 prior to the start of the call. If you are unable to listen to the live call, the webcast will be archived on the Company’s website. About Clean Harbors Clean Harbors (NYSE: CLH) is the leading provider of environmental, energy and industrial services throughout North America. The Company serves a diverse customer base, including a majority of the Fortune 500 companies, thousands of smaller private entities and numerous federal, state, provincial and local governmental agencies. Through its Safety-Kleen subsidiary, Clean Harbors also is a premier provider of used oil recycling and re-refining, parts cleaning and environmental services for the small quantity generator market. Headquartered in Massachusetts, Clean Harbors has waste disposal facilities and service locations throughout the United States and Canada, as well as Mexico and Puerto Rico. For more information, visit www.cleanharbors.com.