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DOW is a diversified chemical company founded in 1897 and is the second largest chemical company in the United States and the third largest in the world. In 2015, it merged with DuPont to become the world's largest chemical giant. It mainly develops and produces a series of chemical products, plastics and agrochemical products, and its products are widely used in many fields such as construction, water purification, papermaking, medicine, transportation, food, paint, packaging, as well as personal care products, homes and automobiles.