Tosoh Corporation evolved from humble beginnings in 1935 as a domestic producer of caustic soda and soda ash in Japan. The Japanese characters for “Tosoh”, in fact, are an abbreviation for oriental soda.Today, the Company is a multinational corporation that generates an array of products to suit modern lifestyles and that contribute to the development of cutting-edge products and technologies.Tosoh is a global supplier of inorganic chemicals, petrochemicals, and specialty materials. As a result, the Group’s customers include the semiconductor, pharmaceutical, health care and food, and many other industries that produ