For over 130 years, Union Tank Car Company has been providing railroad tank and covered hopper cars to various companies for the shipment of its products. Based in El Segundo, Calif., the products carried include plastic pallets, liquefied petroleum gas (LPG), fertilizers, asphalt, sulfur, resins, corn syrup and oils/gases. Union Tank Car Company is in the business of manufacturing, leasing and maintaining railroad tank cars. It owns a fleet of around 100,000 railcars, including cars of Procor Limited. The company operates a network of repair shops, lining shops and On-site mini-shops. A member of The Marmon Group of companies, it is a full-service lessor of specialized railcars in North America.