Services, the Company offers Technical Services and Field Services. Technical Services 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. Field Services provides a wide variety of environmental cleanup services on customer sites or other locations on a scheduled or emergency response basis.

Within Clean Harbors Energy and Industrial Services, the Company offers Industrial Services and Exploration Services. Industrial Services provides industrial and specialty services, such as high-pressure and chemical cleaning, catalyst handling, decoking, material processing, and industrial lodging services to refineries, chemical plants, pulp and paper mills, and other industrial facilities. Exploration Services provides exploration and directional boring services to the energy sector, serving oil and gas exploration, production, and power generation.

Headquartered in Norwell, Massachusetts, Clean Harbors has more than 175 locations, including over 50 waste management facilities, throughout North America in 36 U.S. states, seven Canadian provinces, Mexico, and Puerto Rico. The Company also operates international locations in Bulgaria, China, Singapore, Sweden, Thailand, and the United Kingdom.