If it's a product of the downstream chemical manufacturing process, then China National Chemical Corporation probably makes it. The state-owned company, among China's largest industrial firms, is known as ChemChina, and is divided itself into six units. The largest is Advanced Materials & Specialty Chemicals, followed by Chlor-alkali & Basic Chemical Products, and Agrochemicals. ChemChina also refines petroleum, manufactures rubber and silicone products, and manufactures specialty chemicals. The company operates in 140 countries worldwide. ChemChina is owned by the Government of China.