TOSOH CORPORATION (4042) Stock Price

Tosoh operates four main business segments: petrochemicals, chlor-alkali, specialty products, and engineering. These businesses are conducted alongside related logistics and other supporting activities.

In the petrochemical business, Tosoh manufactures and sells olefin products such as ethylene and propylene, low-density and high-density polyethylene, resin-processed products, and functional polymers. The company also supplies raw materials for polyethylene film to Hokuestu Kasei Co., Ltd.

In the chlor-alkali business, Tosoh manufactures and sells caustic soda, vinyl chloride monomer, vinyl chloride resin, inorganic and organic chemicals, cement, and urethane raw materials. The company supplies raw materials to companies including Taiyou Vinyl Co., Ltd. and Tohoku Tosoh Chemical Co., Ltd.

In the specialty products business, Tosoh manufactures and sells inorganic and organic fine chemicals, measurement and diagnostic products, electronic materials (quartz glass and sputtering targets), and functional materials. The company collaborates with Tosoh SGM Co., Ltd. and Tosoh Hyuga Co., Ltd., among others.

In the engineering business, Tosoh collaborates with Organo Corporation to manufacture and sell water treatment equipment, ultrapure water systems, and ion exchange resins. The company also outsources plant construction and electrical work to Tohoku Denki Tekko Co., Ltd.

In other operations, Tosoh Logistics Co., Ltd. handles transportation and cargo handling of products and raw materials, while Tosoh Nikkemi Co., Ltd. sells petrochemical products and industrial chemicals. Toho Acetylene Co., Ltd. manufactures and sells oxygen, nitrogen, and carbon dioxide.

Tosoh is committed to contributing to society through chemical innovation and aims to realize a sustainable society. Based on the "Tosoh Group Sustainability Fundamental Policy" established in May 2025, the company is advancing sustainability-focused management. Under this policy, Tosoh is working to preserve the global environment and address social challenges while pursuing sustainable growth.

In its medium-term management plan (fiscal years 2025–2027), the company has redefined its business portfolio into two categories: "Chain Business" and "Advanced Business." The Chain Business consists of product chains based on salt electrolysis and naphtha thermal cracking, with highly integrated and efficient operations as its core strength. The Advanced Business maintains a strong position in the pharmaceutical and semiconductor industries, focusing on improving profitability in growing markets.

As a medium- to long-term management priority toward fiscal year 2030, Tosoh is pursuing simultaneous achievement of growth and decarbonization. Specifically, the company is transforming its business structure to expand revenues while reducing CO2 emissions. In the Chain Business, it aims to increase the value-added applications of chlorine, while in the Advanced Business, it seeks to expand its revenue base through new business creation.

In its medium-term management plan for fiscal years 2025–2027, Tosoh has allocated 220 to 250 billion yen for capital expenditures, with particular emphasis on strengthening the Chain Business. The company is also enhancing shareholder returns and improving capital efficiency. Through these initiatives, Tosoh aims to achieve sustainable growth and contribute to society.