Kumiai

Kumiai Chemical Industry is a Japanese agrochemical manufacturer with over 70 years of history, developing, manufacturing, and selling agrochemicals and industrial chemicals. Its main herbicide product, Axeev®, is an innovative soil-applied herbicide developed by the company, used in crops such as soybean, corn, wheat, and sugarcane, and registered in 25 countries as of April 2025. The company also operates in construction, printing, logistics, and information services.

Kumiai Chemical Industry celebrated its 70th anniversary in 2019. Its business began in 1928 when a citrus cooperative in present-day Shimizu-ku, Shizuoka City, manufactured agricultural chemicals. In 1949, Ihara Agricultural Chemicals Co., Ltd. was established in Shimizu City, Shizuoka Prefecture (now Shizuoka City). The company later changed its name to Ihara Agricultural Chemicals Co., Ltd. (イハラ農薬株式会社) and then to Kumiai Chemical Industry Co., Ltd. following a business integration with Toa Agricultural Chemicals Co., Ltd., and moved its headquarters from Shizuoka Prefecture to Chiyoda-ku, Tokyo. It became one of Japan's largest agrochemical manufacturers with annual sales exceeding 14.5 billion yen. The company launched various products including the fungicide Asozin, the rice blast fungicide KITAZIN, the paddy herbicide Saturn, the plant growth regulator KIM-112, the cotton herbicide Staple, the paddy herbicide Nominee, and the herbicide Axeev®. In 2023, its Chemical Research Institute ShIP began operations in Shimizu-ku, Shizuoka City, integrating three chemical research centers.

• Axeev®

  An innovative soil-applied herbicide developed by the company, used in soybean, corn, wheat, and sugarcane cultivation, effective against herbicide-resistant weeds at low doses. Registered in 25 countries as of April 2025.

• Asozin

  Japan's first domestically produced agricultural fungicide (active ingredient: MAS).

• KITAZIN

  A rice blast fungicide (active ingredient: EBP).

• Saturn

  A paddy rice herbicide (active ingredient: benthiocarb).

• Nominee

  A paddy rice herbicide (active ingredient: bispyribac-sodium).

• KIM-112

  A plant growth regulator (active ingredient: prohexadione-calcium).

• Staple

  A cotton herbicide (active ingredient: pyrithiobac-sodium), developed jointly with DuPont in the U.S.

1. 1クミアイ化学工業株式会社kumiai-chem.co.jp
2. 2クミカの歴史 | クミアイ化学工業株式会社kumiai-chem.co.jp
3. 3What's クミカ | クミアイ化学工業株式会社kumiai-chem.co.jp
4. 4社会課題解決に貢献する 除草剤アクシーブ® | What's クミカ | クミアイ化学工業株式会社kumiai-chem.co.jp