Notice

2025/05/26 Strengthened the production system of bismaleimides (BMIs) for semiconductors. K-I Chemical, a subsidiary of Kumiai, has completed construction of a new plant for BMIs. （311KB）

2025/05/21 Signing the Responsible Care® Global Charter Promoting proactive Responsible Care activities （192KB）

2025/05/07 Selection of Kumiai’s Patent Dispute with a Chinese Company as a “2024 Typical Case of Administrative Protection for Intellectual Property Rights” by CNIPA （393KB）

2025/04/22 Kumiai commences new court proceedings in China in relation to a third-party pyroxasulfone-related product (Shandong Zhanhua Yonghao Pharmaceutical &Tech Co., Ltd, Taizhou Yongfeng Chemical Co., Ltd & Taizhou Yongxiang Pharmaceutical Chemical Co., Ltd) （455KB）

2025/04/22 Kumiai commences new court proceedings in China in relation to a third-party pyroxasulfone product (Shandong Binnong Technology Co., Ltd and Zhanhua Goalsun Fine Chemical Co., Ltd.) （454KB）

2025/04/18 Kumiai settles patent infringement proceeding in Australia (Crop Smart Pty Ltd) （157KB）

2025/04/08 Entered the cutting-edge semiconductor memory field and begin selling semiconductor-grade high-purity COS gas （214KB）

2025/02/13 Kumiai commences new court proceedings in China in relation to a third-party pyroxasulfone product (Shanghai E-tong Chemical Co., Ltd.) （442KB）

2025/01/22 Kumiai and Valent U.S.A. Partner to Develop Effeeda® Herbicides for U.S. Rice Producers （173KB）

2025/01/15 Registration of the novel paddy rice fungicide “Regard” （142KB）

2025/01/15 Kumiai commences new court proceedings in China in relation to a third-party pyroxasulfone product (Inner Mongolia Yongtai Chemical Co., Ltd.) （270KB）

2024/12/27 Notice of the 76th Annual General Meeting of Shareholders （233KB）

2024/12/17 Kumiai commences new court proceedings in China in relation to a third-party pyroxasulfone product (Jiangsu Agrochem Laboratory Co., Ltd.) （489KB）

2024/11/15 Kumiai commences new court proceedings in Australia in relation to a third-party pyroxasulfone product (Conquest Crop Protection Pty Ltd) （178KB）

2024/11/15 Kumiai commences new court proceedings in Australia in relation to a third-party pyroxasulfone product (4 Farmers Australia Pty Ltd) （178KB）

2024/11/15 Kumiai commences new court proceedings in Australia in relation to a third-party pyroxasulfone product (Crop Smart Pty Ltd) （178KB）

2024/11/11 Kumiai resolved a patent dispute in China （237KB）

2024/10/02 Kumiai commences another court proceedings against third parties in China in relation to pyroxasulfone product （251KB）

2024/08/08 Clarification of the Mode of Action of a New Acaricide, Flupentiofenox （474KB）

2024/07/29 Kumiai commences court proceedings against third parties in China in relation to pyroxasulfone product （177KB）

2024/07/23 KUMIAI’s Pyroxasulfone Process Patent Held Valid in China （189KB）

2024/07/19 Kumiai successfully resolves patent infringement proceeding in Australia. （224KB）

2024/07/12 Kumiai commences second court proceeding in Australia in relation to a third party pyroxasulfone product （218KB）

2024/04/30 Kumiai commences court proceedings in Australia in relation to a third party pyroxasulfone product （219KB）

2023/12/15 Scientific literature on the evaluation of endocrine disruptors was selected as a Key Scientific Article by Medicine Innovates （150KB）

2023/10/02 New Chemical Research Institute with cutting-edge equipment began operations. （339KB）