Sanwayuka Industries

Sanwayuka Industries (三和油化工業株式会社, SANWAYUKA INDUSTRY CORPORATION) is a Japanese company headquartered in Kariya, Aichi Prefecture, engaged in industrial waste treatment and the refining and manufacturing of chemicals. It is listed on the Tokyo Stock Exchange Standard Market and the Nagoya Stock Exchange Main Market. The company was founded in March 1965 in Midori-ku, Nagoya, initially to sell oils and chemicals to automotive-related companies, and was incorporated as Sanwayuka Industries Co., Ltd. in June 1970. Its current core business, industrial waste treatment, began in 1989. In addition to industrial waste treatment, the company is involved in the reuse of used chemicals and the manufacture of chemicals for lithium-ion batteries and semiconductors. Over the decades, Sanwayuka Industries has expanded through new plants, business lines, and subsidiaries. It established the Odaka Plant in Nagoya in 1974, moved its head office to Kariya and established the Kariya Plant in 1979, began industrial waste treatment in 1989, started recycling organic solvent waste in 1994, and began manufacturing high-purity chemicals in 1998. In 2015 it made Sanwa Plantec a wholly owned subsidiary and renamed it Sanwa Sekihan. In 2018 it established Sanwa Nankai Recycle as a joint venture with Nankai Chemical. In December 2021 it listed on JASDAQ and the Second Section of the Nagoya Stock Exchange. In June 2024 it established Sanwa Material Solutions as a joint venture with Air Water Material, and in October 2025 it made A&H Japan a subsidiary. The company operates through a group of affiliated companies including Sanwa Ryutsu Co., Ltd., Sanwa Sakai Recycle Co., Ltd., Sanwa Sekihan Co., Ltd., Sanwa Analysis Center Co., Ltd., Sanwa Business Support Co., Ltd., Sanwa Nankai Recycle Co., Ltd., Sanwa Material Solutions Co., Ltd., and A&H Japan Co., Ltd.

Sanwayuka Industries was founded in March 1965 in Midori-ku, Nagoya, as a business selling oils and chemicals to automotive-related companies. In June 1970, it was reorganized into a corporation under the name Sanwayuka Industries Co., Ltd. In January 1974, it established the Odaka Plant in Midori-ku, Nagoya, and began selling chemicals and lubricating oils. In November 1979, the head office was relocated to Kariya, Aichi Prefecture, and the Kariya Plant was established. In December 1989, the company began its industrial waste treatment business, which would become its core operation. In July 1994, it started a resource recycling business for organic solvent waste liquid. In August 1998, it began manufacturing high-purity chemicals. In August 2009, the registered head office was moved to Kariya, Aichi Prefecture. In June 2015, Sanwa Plantec was made a wholly owned subsidiary and simultaneously renamed Sanwa Sekihan. In January 2018, Sanwa Nankai Recycle was established as a joint venture with Nankai Chemical. In December 2021, the company listed on JASDAQ and the Second Section of the Nagoya Stock Exchange. In June 2024, Sanwa Material Solutions was established as a joint venture with Air Water Material. In October 2025, A&H Japan was made a subsidiary.

• 2025

  Made A&H Japan a subsidiary.

• 2024

  Established Sanwa Material Solutions as a joint venture with Air Water Material.

• 2021

  Listed on JASDAQ and the Second Section of the Nagoya Stock Exchange.

• 2018

  Established Sanwa Nankai Recycle as a joint venture with Nankai Chemical.

• 2015

  Made Sanwa Plantec a wholly owned subsidiary and renamed it Sanwa Sekihan.

• 2009

  Moved registered head office to Kariya, Aichi.

• 1998

  Began manufacturing high-purity chemicals.

• 1994

  Began resource recycling business for organic solvent waste liquid.

• 1989

  Began industrial waste treatment business.

• 1979

  Relocated head office to Kariya, Aichi; established Kariya Plant.

• 1974

  Established Odaka Plant in Midori-ku, Nagoya; began selling chemicals and lubricating oils.

• 1970

  Incorporated as Sanwayuka Industries Co., Ltd.

• 1965

  Founded in Midori-ku, Nagoya.

A regional industrial waste treatment and specialty chemical manufacturer serving automotive, electronics, and semiconductor industries, with a growing environmental recycling focus.

• Industrial waste treatment

• Chemical refining and manufacturing

• High-purity chemicals

• Organic solvent waste recycling

• Chemicals for lithium-ion batteries

• Chemicals for semiconductors

1. 1Sanwayuka Industries - Wikidatawikidata.org
2. 2三和油化工業 - Wikipedia (Japanese)ja.wikipedia.org