Clean Harbors is a provider of environmental and industrial services. Co. has two operating segments: Environmental Services and Safety-Kleen Sustainability Solutions. Through its Environmental Services segment, Co. collects, transports, treats and disposes of hazardous and non-hazardous waste, including resource recovery, physical treatment, fuel blending, incineration, landfill disposal, wastewater treatment, lab chemical disposal, explosives management and CleanPack® services. Co.'s Safety-Kleen Sustainability Solutions business offerings span the life-cycle of oil and other sustainable lubricant products. Co.'s teams collect used oil which serves as feedstock for its oil re-refineries.