Clean Harbors is a leading North American provider of environmental and industrial services operating two core segments: Environmental Services, which collects, transports, treats, and disposes of hazardous and non-hazardous waste through a network of over 100 facilities including the largest commercial hazardous waste incinerators in North America, offers emergency response and industrial maintenance services, and operates Safety-Kleen Environmental branches serving manufacturing and automotive customers; and Safety-Kleen Sustainability Solutions, which collects used oil, automotive fluids and filters via a nationwide fleet and processes them through seven re-refineries into base oils and formulated lubricants under the Performance Plus brand. The company generates recurring revenue from long-standing relationships with a diverse customer base spanning Fortune 500 companies to small businesses across general manufacturing, chemical, refining, automotive, and other industrial sectors, with revenues split approximately 91% from the United States and 9% from Canada, while results are driven by waste processing volumes and commodity oil pricing.