The relationship between acquisition and being acquired. According to relevant information, Kuraray acquired DuPont for US$543 million on August 27, 2017. Kuraray is a chemical company with a long history in Japan and was established before World War II. Kuraray Co., Ltd. was founded in 1926 with a capital of approximately US$800 million. It is a well-known comprehensive chemical industry group in Japan and a listed company on Tokyo Stock Exchange. Its annual sales exceed US$3 billion. By 2000, all subsidiaries of the company have Zhidu has obtained ISO14001 certification (environmental management system certification).