Clean Harbors is the leading provider of environmental, energy and industrial services and largest hazardous waste disposal company in 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. The Company provides a broad range of hazardous material management and disposal services including the collection, packaging, transportation, recycling, treatment and disposal of hazardous and non-hazardous waste. It also provides a wide variety of environmental cleanup services on customer sites or other locations on a scheduled or emergency response basis. The Company provides industrial and specialty services, such as high-pressure and chemical cleaning, pigging and decoking, material processing and industrial lodging services to refineries, chemical plants, pulp and paper mills, and other industrial facilities. It also provides exploration, surface rentals, solids control, and environmental services to the energy sector serving oil and gas exploration, production, and power generation. Safety-Kleen, a subsidiary of Clean Harbors, provides used oil recycling and re-refining, parts washers and environmental solutions company for small quantity waste generators supported by the world's largest re-refining capabilities to convert used oil into base and blended lube oils.