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EX-32 - EXHIBIT 32 - CLEAN HARBORS INCclh12312017ex32.htm
EX-31.2 - EXHIBIT 31.2 - CLEAN HARBORS INCclh12312017ex312.htm
EX-31.1 - EXHIBIT 31.1 - CLEAN HARBORS INCclh-12312017ex311.htm
EX-24 - EXHIBIT 24 - CLEAN HARBORS INCclh12312017ex24.htm
EX-23 - EXHIBIT 23 - CLEAN HARBORS INCclh12312017ex23.htm
10-K - 10-K - CLEAN HARBORS INCclh-20171231x10k.htm
Exhibit 21


Subsidiaries of Clean Harbors, Inc.
Subsidiary
Jurisdiction of Organization
Altair Disposal Services, LLC
Delaware
Baton Rouge Disposal, LLC
Delaware
BCT Structures, ULC*
Alberta
Bridgeport Disposal, LLC
Delaware
Cat Tech International, Ltd.*
Bahamas
CH International Holdings, LLC
Delaware
Clean Harbors Andover, LLC
Delaware
Clean Harbors Aragonite, LLC
Delaware
Clean Harbors Arizona, LLC
Delaware
Clean Harbors Baton Rouge, LLC
Delaware
Clean Harbors BDT, LLC
Delaware
Clean Harbors Buttonwillow, LLC
Delaware
Clean Harbors Canada, Inc.*
New Brunswick
Clean Harbors Caribe, Inc.*
Puerto Rico
Clean Harbors Chattanooga, LLC
Delaware
Clean Harbors Clive, LLC
Delaware
Clean Harbors Coffeyville, LLC
Delaware
Clean Harbors Colfax, LLC
Delaware
Clean Harbors Deer Park, LLC
Delaware
Clean Harbors Deer Trail, LLC
Delaware
Clean Harbors Development, LLC
Delaware
Clean Harbors Directional Boring Services, ULC*
Alberta
Clean Harbors Directional Boring Services LP*
Alberta
Clean Harbors Disposal Services, Inc.
Delaware
Clean Harbors El Dorado, LLC
Delaware
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, LLC
Delaware
Clean Harbors Grassy Mountain, LLC
Delaware
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, LLC
Delaware
Clean Harbors Kingston Facility Corporation
Massachusetts



Exhibit 21


Clean Harbors LaPorte, LLC
Delaware
Clean Harbors Laurel, LLC
Delaware
Clean Harbors Lodging Services LP*
Alberta
Clean Harbors Lodging Services, ULC*
Alberta
Clean Harbors Lone Mountain, LLC
Delaware
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, LLC
Delaware
Clean Harbors Production Services, ULC*
Alberta
Clean Harbors Quebec, Inc.*
Quebec
Clean Harbors Recycling Services of Chicago, LLC
Delaware
Clean Harbors Recycling Services of Ohio LLC
Delaware
Clean Harbors Reidsville, LLC
Delaware
Clean Harbors San Jose, LLC
Delaware
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, LLC
Delaware
Clean Harbors Westmorland, LLC
Delaware
Clean Harbors White Castle, LLC
Delaware
Clean Harbors Wichita, LLC
Delaware
Clean Harbors Wilmington, LLC
Delaware
Crowley Disposal, LLC
Delaware
CTVI Inc.*
Virgin Islands
Disposal Properties, LLC
Delaware
Emerald Services, Inc.
Washington
EnviroSORT Inc.
Alberta
Grizzco Camp Services, ULC*
British Columbia
GSX Disposal, LLC
Delaware
Hilliard Disposal, LLC
Delaware
Industrial Service Oil Company, Inc.
California
JL Filtration Inc.*
Alberta
JL Filtration Operating Limited Partnership*
Alberta
Laidlaw Environmental Services de Mexico S.A. de C.V.*
Mexico
Lonestar Sylvan Inc.*
Canada
Lonestar Vacuum Inc.*
Alberta
Lonestar West Enterprises LLC
Oklahoma
Lonestar West Inc.*
Canada
Lonestar West Services LLC
Nevada



Exhibit 21


Lonestar USA Inc.
Nevada
Murphy's Waste Oil Service, Inc.
Massachusetts
Northeast Casualty Insurance Company
Vermont
Plaquemine Remediation Services, LLC
Delaware
Rosemead Oil Products, Inc.
California
Roebuck Disposal, LLC
Delaware
Safety-Kleen de Mexico, S. de R.L. de C.V.*
Mexico
Safety-Kleen Canada Inc.*
New Brunswick
Safety-Kleen Envirosystems Company
California
Safety-Kleen Envirosystems Company of Puerto Rico, Inc.
Indiana
Safety-Kleen, Inc.
Delaware
Safety-Kleen International, Inc.
Delaware
Safety-Kleen International Asia Investment Company Limited*
Hong Kong
Safety-Kleen of California, Inc.
California
Safety-Kleen Systems, Inc.
Wisconsin
Sanitherm, ULC*
Alberta
Sawyer Disposal Services, LLC
Delaware
Service Chemical, LLC
Delaware
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, LLC
Delaware
Veolia ES Industrial Services, Inc.
Delaware
Versant Energy Services, Inc.
Delaware
Versant Energy Services, LP*
Alberta
Vulsay Industries Ltd.*
Ontario
*Foreign entity or subsidiary of foreign entity