Heritage-Crystal Clean In provides full-service parts cleaning, hazardous and non-hazardous bulk and containerized waste management, used oil collection, re-refining and lubricating base oil product sales, wastewater vacuum services, antifreeze collection, recycling and product sales, industrial and field services, and emergency and spill response services. It operates in two segments, Environmental Services, and Oil Business. The Environmental Services segment offers parts cleaning, containerized waste management, vacuum truck, and antifreeze recycling services, and the Oil Business segment collects used oil and sells recycled fuel oil, as well as engages in the re-refining of used oil into lubricant base oil and by-products.
