Takeshi Hagiwara

Chuo Kagaku Co., Ltd. engages in the manufacture and sale of disposable plastic food containers. It offers containers for sashimi, sushi, bento lunches, topped rice and noodles, side dishes, fruits and vegetables, and meat. It also provides trays and specialty containers dor catering and hors d'oeuvres. The company was founded by Koji Watanabe in April 1957 and is headquartered in Konosu, Japan.

SPDC Ltd. engages in the production and sales of polyethylene, ethylene glycol and other petrochemical products. The company was founded in 1979 and is headquartered in Tokyo, Japan.

Part of Mitsubishi Corp., Mitsubishi Shoji Chemical Corp. is a Japanese company that distributes chemical products. The private company is based in Tokyo, Japan and was founded in 1987.

Part of Mitsubishi Corp., Mitsubishi Corporation Plastics Ltd. is a Japanese professional trading company specializing in plastic products. The private company is based in Tokyo, Japan. The company creates planning and development type and platform-type businesses in four fields\: general-purpose, industrial, PET, and logistics. The company aims to solve social issues as a whole by achieving high coordination power in these fields.

Part of SENKO Group Holdings Co., Ltd., Huanling Chuo Kagaku Management Co., Ltd. is a Chinese company that manufactures and wholesales plastic food packaging products. The private company is based in Shanghai, China. The CEO of the company is Fangming Yu.