Hiyoshi Inoue

Tri-Wall Ltd. is a holding company, which engages in the manufacture of packaging materials. The firm offers polypropylene (PP) hollow sheet, paper tubes, pallets, and accessories. It serves the heavy industrial and agricultural sectors. The company was founded in 1974 and is headquartered in Hong Kong.

Tri-Wall KK is a holding company with interests in the manufacture and distribution of packaging materials. It operates businesses that specializes in triple-wall corrugated and returnable packaging systems. The firm serves the heavy industrial and agricultural sectors. The company was founded in June 1995 and is headquartered in Tokyo, Japan.

Founded in 1907, Takigawa Corp. Japan is a subsidiary of Rengo Co., Ltd. that manufactures and sells flexible packaging products. The company is based in Funabashi, Japan. Takigawa Corp. Japan was acquired by Rengo Co., Ltd. on March 30, 2022.

Tri-Wall Europe GmbH is a German company that specializes in consulting, sales, processing, and production of packaging and container products. The private company is based in Bad Wörishofen, Germany. The CEOs of the company are Yuji Suzuki, Yasuhiro Baba, Yosuke Kawamoto, Robert Kyle Baker.

Part of Kinyosha Printing Co., Ltd., HOWA SANGYO Co., Ltd. is a company based in Funabashi, Japan. The Japanese company's services include planning, package design, printing, processing, and sales of packaging materials, such as food package. Founded in 1962, the company specializes in manufacturing and selling soft packaging materials using plastic films and paper.

Dalian Rengo Packaging Co., Ltd. engages in the production of corrugated cardboards and corrugated cardboard boxes. It also provides packaging decoration and packaging structure design services. The company was founded on September 1, 1993 and is headquartered in Dalian, China.

Sanyo Kakoshi KK engages in the manufacture and sale of laminated products. the company is headquartered in Toda, Japan.