Safety-Kleen is a North American leader in oil re-refining and parts cleaning services. A unit of environmental clean-up giant Clean Harbors, it provides these services to commercial, industrial, and automotive customers to meet their environmental needs. The company's oil re-refining segment (Kleen Performance Products) processes 220 million gallons of used oil annually to produce base and blended lubricating oils, which are sold to distributors, fleets, government agencies, railroads, and retailers. Its SK Environmental Services segment offers specially designed parts washers and maintenance support to customer locations. It performs more than 950,000 parts washer services a year.