HASA

INDSPEC Chemical Corporation received ISO 9001 certification from the International Organization for Standardization in 2003. The company is engaged in the business of manufacturing and marketing resorcinol, resorcinol based resins and other resorcinol derivatives. INDSPEC is one of the world s largest resorcinol producers, and one of the only commercial resorcinol producers in the United States. In addition to its resorcinol products, INDSPEC produces and markets selected grades of sodium sulfite and sodium sulfate. INDSPEC Chemical s corporate office is in downtown Pittsburgh, and its production facility is located approximately 60 miles northeast of Pittsburgh, in Petrolia, Pa. INDSPEC also has a research, development and technical center located in Harmarville, Pa., and a European sales office in Rotterdam, The Netherlands. INDSPEC Chemical has been a wholly owned subsidiary of Occidental Petroleum Corporation since 1996.

Tarr, LLC is one of the largest west coast distributors of commodity/specialty chemicals, lubricants and fuels. The company's full service spectrum includes a range of products. In addition, it provides cardlock fleet fueling, direct manufacturing, tank farms/monitoring, warehousing, high-purity manufacturing, contract labeling/packaging as well as delivery with the Tarr truck fleet and by rail. The company is a Chevron signature class lubrication marketer, with product integrity accreditation for packaging and handling of Chevron lubricants. Tarr, LLC is an ISO 9001: 2008 certified company.

Hill Brothers Chemical Company provides a variety of chemical products to the industrial and construction markets. Established in 1923, it specializes in a wide range of acids, alkali, chlorine and calcium chloride products, in addition to ammonia/safety equipment. The company's general product line includes Borax, Lime Hydrate, Oxalic Acid, Hydrogen Peroxide and a various combinations of solvents/alcohols. Hill Brothers Chemical Company also offers construction products, such as Durafiber, HI-FIBE, HILLBEST 25, Desert Brand and HICO FLO. The company is based in Orange, Calif.