| | |
Subsidiary | | Jurisdiction of Organization |
|---|
| Clean Harbors Grassy Mountain, LLC | | Delaware |
| Clean Harbors Industrial Services Canada, Inc.* | | Alberta |
| Clean Harbors Industrial Services, Inc. | | Delaware |
| Clean Harbors Kansas, LLC | | Delaware |
| Clean Harbors Kingston Facility Corporation | | Massachusetts |
| 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 Lone Star Corp. | | Delaware |
| Clean Harbors Los Angeles, 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 PPM, 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 Wilmington, LLC | | Delaware |
| Crowley Disposal, LLC | | Delaware |
| CTVI Inc.* | | Virgin Islands |
| Disposal Properties, LLC | | Delaware |
| Environnement Services Et Machinerie E.S.M. Inc.* | | Quebec |
| Envirosort Inc. | | Alberta |
| Gizzco Camp Services, ULC* | | British Columbia |
| GSX Disposal, LLC | | Delaware |
| Heckmann Environmental Services, Inc. | | Delaware |
| Hilliard Disposal, LLC | | Delaware |
| JL Filtration Inc.* | | Alberta |
| JL Filtration Operating Limited Partnership* | | Alberta |
| Laidlaw Environmental Services de Mexico S.A. de C.V.* | | Mexico |
| Murphy's Waste Oil Service, Inc. | | Massachusetts |
| Plaquemine Remediation Services, LLC | | Delaware |
| Roebuck Disposal, LLC | | Delaware |
| Safety-Kleen de Mexico, S. de R.L. de C.V.* | | Mexico |
| Safety-Kleen Canada Inc.* | | New Brunswick |
