• 2025/08/08 KUMIAI’s Key Pyroxasulfone Intermediate Patent Held Valid Against Two Invalidation Attempts in China pdf （277KB）
  • 2025/06/27 Integrated Report 2025
  • 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. pdf （311KB）
  • 2025/05/21 Signing the Responsible Care® Global Charter Promoting proactive Responsible Care activities pdf （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 pdf （393KB）