Tosoh Corporation has decided to acquire all outstanding shares of Nanyo Kasei

Tosoh Corporation has decided to acquire the remaining 50% stake in Nanyo Kasei Co., Ltd., its joint venture with Asahi Kasei Corporation, making Nanyo Kasei a wholly owned subsidiary of Tosoh. This step reflects Tosoh's commitment to strengthening its business foundations and ensuring it is well positioned to support future growth.

By bringing Nanyo Kasei fully into the Tosoh Group, the company will be able to further strengthen the stability and reliability of its HDI monomer supply, a key raw material for its HDI derivatives business. Full ownership is also expected to improve coordination across operations, enabling faster decision-making and greater flexibility in responding to market demand.

In addition, the acquisition will help ensure a secure and consistent supply of HDI monomer for Tosoh's new HDI derivatives plant, which commenced commercial operations in September 2026. This will support the plant's stable operation and reinforce Tosoh's ability to provide customers with a reliable long-term supply of high-quality products.

Source: Tosoh Corporation