Kouta Kuroiwa

Tsusho Co., Ltd. is engaged in the wholesale distribution of wood construction materials such as plywood, interior and exterior materials, as well as housing fixtures. The company was established in 1962 and is based in Osaka, Japan, with several office and distribution facilities around Japan.

Japan Environmental Storage & Safety Corp. operates as a government-owned firm that provides waste treatment programs. It specializes in conducting polychlorinated biphenyl (PCB) waste treatment solutions. The firm also provides environmental preservation information and technological knowledge, and waste disposal seminars. Its services include environmental equipment rental and information delivery services. The company was founded on April 1, 2004 and is headquartered in Tokyo, Japan.

Japan Carlit Co., Ltd. engages in the manufacture and sale of chemical goods and electronic materials. Its products include hydrous explosives, detonating cords, metal powders, firework parts, perchloric acid, perchlorate salts, and standard fuel. The company was founded by Soichiro Asano in September 1916 and is headquartered in Tokyo, Japan.

Mizuho Bank Ltd. engages in financial service business. It offers services such as buying and selling of securities, lending, deposits, securities investment, domestic exchange settlement, foreign exchanges transaction, and corporate bond trustee and register services. It also deals in buying and selling of gold, public bond underwriting, sale of public bonds, lottery, trust agent, and consulting services. The company was founded on May 7, 1923 and is headquartered in Tokyo, Japan.

Timberam KK engages in the sale and manufacture of laminated wood and ceiling board. The company was founded by Morinosuke Miyata in June 1962 and is headquartered in Akita, Japan.