Clean Harbors, Inc., through its subsidiaries, provides environmental, energy, and industrial services. Its Technical Services segment offers hazardous material management services, including the packaging, collection, transportation, treatment, and disposal of hazardous and non-hazardous waste; and CleanPack services comprising the collection, identification, categorization, specialized packaging, transportation, and disposal of laboratory chemicals and household hazardous wastes. The company’s Field Services segment offers various environmental cleanup services on customer sites or other locations on a scheduled or emergency response basis, including tank cleaning, decontamination, remediation, spill cleanup; used oil and oil products recycling; polychlorinated biphenyls management and disposal; and filtration and water treatment services. Its Industrial Services segment offers 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. The company’s Oil and Gas Field Services segment provides fluid handling, fluid hauling, downhole servicing, surface rentals, exploration, mapping, and directional boring services to the energy sector serving oil and gas exploration, production, and power generation. Clean Harbors, Inc. has approximately 200 locations, including approximately 50 waste management facilities in 37 U.S. states, 7 Canadian provinces, Mexico, and Puerto Rico. The company also has operations in Bulgaria, China, Singapore, Sweden, Thailand, and the United Kingdom. It serves Fortune 500 companies and private entities, as well as federal, state, provincial, and governmental agencies. The company was founded in 1980 and is headquartered in Norwell, Massachusetts.