» Occidental Chemical Corporation - Producer and marketer of basic chemicals, petrochemicals, polymers, plastics, and specialty products.
» 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.
» OxyChem - The chemicals segment of Occidental Petroleum Company, producing chlorine, caustic soda, PVC, mercaptan odorizing agents, resorcinol, and other performance products.
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