Orichem International, Ltd. - Fine-chemical manufacturing and trading group in China, whose products include dyes, pesticides, nutritional supplements, herbal products, and a range of organic intermediates. - http://www.orichem.com
OxyChem - The chemicals segment of Occidental Petroleum Company, producing chlorine, caustic soda, PVC, mercaptan odorizing agents, resorcinol, and other performance products. - http://www.oxy.com/OXYCHEM/CHEMICALS.htm
Occidental Chemical Corporation - Producer and marketer of basic chemicals, petrochemicals, polymers, plastics, and specialty products. - http://www.oxychem.com/