Dow Chemical Company, headquartered in Midland, Michigan, is a prominent American multinational corporation and one of the world's leading suppliers of chemicals, plastics, synthetic fibers, and agricultural products. Established in 1897 by chemist Herbert H. Dow, the company initially focused on extracting chemicals such as bromine, chlorides, magnesium, and calcium from Michigan's brine deposits. Over the years, Dow expanded its product line, diversifying into agricultural chemicals, elemental chlorine, phenol, dyestuffs, and magnesium.