Akihiko Yamadera

Aronkasei Co., Ltd. engages in the manufacture and sale of molded plastic products. Its operations are carried out through the following segments: Piping Materials, Life Support, Molding Materials, and Environment Business. Piping Materials deals with polyvinyl chloride (PVC) pipes, fittings, small diameter PVC pipes, piping components and cable protection tubes. Life Support deals with health care products, sundries, food equipment and agricultural materials. Molding Materials deals with elastomer compound and plastic moulds. Environment Business deals with environment protection equipment. The company was founded on August 16, 1950 an is headquartered in Tokyo, Japan.

TOA Engineering Corp. is a private company based in Tokyo, Japan.

MT AquaPolymer, Inc. engages in the manufacture and sale of polymer flocculants and other water treatment chemicals. Its products include ACCOFLOC, ARONFLOC, and Aron DA-C. The company was founded on October 1, 2006 and is headquartered in Tokyo, Japan.

Part of Osaka Gas Co., Ltd., Sakura Information Systems Co., Ltd. is a Japanese company that develops software and provides IT systems design, development, and maintenance services. The company is based in Tokyo, Japan. Sakura Information Systems Co. was acquired by Osaka Gas Information System Research Institute Co., Ltd. from Sumitomo Mitsui Financial Group, Inc. on April 01, 2008.

Sumitomo Mitsui Banking Corp. engages in the provision of financial services centered on banking. It operates through the following business segments: Wholesale, Retail, International, Market Sales, and Headquarters Management. The Wholesale segment covers business for customers of large and medium-sized companies in Japan. The Retail segment handles business for domestic individuals and SME customers. The International segment comprises of business for overseas Japanese and non-Japanese companies. The Market Sales segment corresponds to financial market business. The Headquarters Management segment includes all other businesses not covered by other segments. The company was founded in April 2001 and is headquartered in Tokyo, Japan.

Founded in 1934, Tsurumi Soda Co. Ltd. is a Japanese chemical company that is part of Toagosei Co., Ltd. The company is based in Yokohama, Japan and is engaged in the manufacture and sale of chemical products.

Tohcello Co. Ltd. manufactures polypropylene and polyethylene wrapping films and synthetic fibers. It operates through the following divisions: Packaging Films and Industrial Use Functional Films. The Packaging Films division deals in polypropylene, polyethylene, and vinylon films. The Industrial Use Functional Films division deals in masking, special, and silicone films. The company was founded in 1929 and is headquartered Tokyo, Japan.

Muromachi Co., Ltd. engages in the management of its group of companies that deals in housing and construction businesses. The company was founded in December 1952 and is headquartered in Tokyo, Japan.

Mitsui & Co. Vietnam Ltd. engages in import, export, and business distribution of goods. It is also involved in leasing of machines and equipment. The company was founded on December 20, 2006 and is headquartered in Ho Chi Minh City, Vietnam.