Attached files

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EX-32 - EX-32 - CLEAN HARBORS INCclh-12312020ex32.htm
EX-31.2 - EX-31.2 - CLEAN HARBORS INCclh-12312020ex312.htm
EX-31.1 - EX-31.1 - CLEAN HARBORS INCclh-12312020ex311.htm
EX-24 - EX-24 - CLEAN HARBORS INCclh-12312020ex24.htm
EX-23 - EX-23 - CLEAN HARBORS INCclh-12312020ex23.htm
10-K - 10-K - CLEAN HARBORS INCclh-20201231.htm
Exhibit 21

Subsidiaries of Clean Harbors, Inc.
SubsidiaryJurisdiction of Organization
Altair Disposal Services, LLCDelaware
Baton Rouge Disposal, LLCDelaware
Bridgeport Disposal, LLCDelaware
CH International Holdings, LLCDelaware
Clean Harbors Andover, LLCDelaware
Clean Harbors Aragonite, LLCDelaware
Clean Harbors Arizona, LLCDelaware
Clean Harbors Baton Rouge, LLCDelaware
Clean Harbors BDT, LLCDelaware
Clean Harbors Buttonwillow, LLCDelaware
Clean Harbors Canada, Inc.*New Brunswick
Clean Harbors Caribe, Inc.*Puerto Rico
Clean Harbors Chattanooga, LLCDelaware
Clean Harbors Clive, LLCDelaware
Clean Harbors Coffeyville, LLCDelaware
Clean Harbors Colfax, LLCDelaware
Clean Harbors Deer Park, LLCDelaware
Clean Harbors Deer Trail, LLCDelaware
Clean Harbors Development, LLCDelaware
Clean Harbors Disposal Services, Inc.Delaware
Clean Harbors El Dorado, LLCDelaware
Clean Harbors Energy and Industrial Services Corp.*Alberta
Clean Harbors Energy and Industrial Services LP*Alberta
Clean Harbors Energy and Industrial Western Ltd.*Alberta
Clean Harbors Energy Services ULC*Alberta
Clean Harbors Environmental Services, Inc.Massachusetts
Clean Harbors Exploration Services, Inc.Nevada
Clean Harbors Exploration Services, ULC*Alberta
Clean Harbors Exploration Services LP*Alberta
Clean Harbors Florida, LLCDelaware
Clean Harbors Grassy Mountain, LLCDelaware
Clean Harbors India LLP*India
Clean Harbors Industrial Services Canada, Inc.*Alberta
Clean Harbors Industrial Services, Inc.Delaware
Clean Harbors Innu Environmental Services, Inc.Newfoundland
Clean Harbors Kansas, LLCDelaware
Clean Harbors Kingston Facility CorporationMassachusetts
Clean Harbors LaPorte, LLCDelaware
Clean Harbors Laurel, LLCDelaware
Clean Harbors Lodging Services LP*Alberta
Clean Harbors Lodging Services, ULC*Alberta
Clean Harbors Lone Mountain, LLCDelaware


Exhibit 21

Clean Harbors Mercier, Inc.Quebec
Clean Harbors of Baltimore, Inc.Delaware
Clean Harbors of Braintree, Inc.Massachusetts
Clean Harbors of Connecticut, Inc.Delaware
Clean Harbors Pecatonica, LLCDelaware
Clean Harbors Production Services, ULC*Alberta
Clean Harbors Quebec, Inc.*Quebec
Clean Harbors Recycling Services of Chicago, LLCDelaware
Clean Harbors Recycling Services of Ohio LLCDelaware
Clean Harbors Reidsville, LLCDelaware
Clean Harbors San Jose, LLCDelaware
Clean Harbors San Leon, Inc.Delaware
Clean Harbors Services, Inc.Massachusetts
Clean Harbors Surface Rentals, ULC*Alberta
Clean Harbors Surface Rentals Partnership*Alberta
Clean Harbors Surface Rentals USA, Inc.Delaware
Clean Harbors Tennessee, LLCDelaware
Clean Harbors Westmorland, LLCDelaware
Clean Harbors White Castle, LLCDelaware
Clean Harbors Wichita, LLCDelaware
Clean Harbors Wilmington, LLCDelaware
Crowley Disposal, LLCDelaware
Cyn Oil CorporationMassachusetts
Disposal Properties, LLCDelaware
Emerald Services, Inc.Washington
Green View Technologies, Inc.New Hampshire
EnviroSORT Inc.Alberta
Grizzco Camp Services, ULC*British Columbia
GSX Disposal, LLCDelaware
H20 Environmental, Inc.Nevada
Hilliard Disposal, LLCDelaware
Industrial Service Oil Company, Inc.California
Laidlaw Environmental Services de Mexico S.A. de C.V.*Mexico
Lonestar Sylvan Inc.*Canada
Lonestar Vacuum Inc.*Alberta
Lonestar West Enterprises LLCOklahoma
Lonestar West Inc.*Canada
Lonestar West Services LLCNevada
Murphy's Waste Oil Service, Inc.Massachusetts
Northeast Casualty Insurance CompanyVermont
Plaquemine Remediation Services, LLCDelaware
Rosemead Oil Products, Inc.California
Roebuck Disposal, LLCDelaware
Safety-Kleen de Mexico, S. de R.L. de C.V.*Mexico


Exhibit 21

Safety-Kleen Canada Inc.*New Brunswick
Safety-Kleen Envirosystems CompanyCalifornia
Safety-Kleen Envirosystems Company of Puerto Rico, Inc.Indiana
Safety-Kleen, Inc.Delaware
Safety-Kleen International, Inc.Delaware
Safety-Kleen of California, Inc.California
Safety-Kleen Systems, Inc.Wisconsin
Sanitherm, ULC*Alberta
Sawyer Disposal Services, LLCDelaware
Service Chemical, LLCDelaware
SK D’Incineration*Quebec
SK Servicios Ambientales Administrativos, S. de R.L. de C.V.*Mexico
Spring Grove Resource Recovery, Inc.Delaware
The Solvents Recovery Service of New Jersey, Inc.New Jersey
Thermo Fluids Inc.Delaware
Tri-vax Enterprises Ltd.*Alberta
Tulsa Disposal, LLCDelaware
Versant Energy Services, Inc.Delaware
Versant Energy Services, LP*Alberta
Vulsay Industries Ltd.*Ontario
    *Foreign entity or subsidiary of foreign entity