Tokyo, Japan—Tosoh Corporation is scheduled to cease producing and selling toluene diisocyanate (TDI) and TDI-related products effective April 2023. Despite the continuous implementation of measures to improve profitability, the environment surrounding this business has become increasingly severe in recent years, and there are no prospects for improvement. Consequently, Tosoh plans to cease production permanently at its Nanyo Complex of TDI and TDI-related products.
Nippon Polyurethane Industry Co., Ltd. has been producing TDI and TDI-related products—including monomeric TDI and TDI derivatives such as trimmers, adhesives, and thermosetting resins—at its plant located in Tosoh’s Nanyo Complex since 1962. In October 2014, Nippon Polyurethane Industry merged with Tosoh, and TDI production shifted to Tosoh’s management that same year. The current annual production is 25,000 tons.
TOSOH CORPORATION
Who We Are
Tosoh Corporation is the parent of the Tosoh Group, which comprises over 100 companies worldwide and a multiethnic workforce of over 12,000 people. It generated net sales of ¥732.9 billion (US$6.9 billion at the average rate of ¥106.1 to the US dollar) in fiscal 2021, ended March 31, 2021.
What We Do
Tosoh is one of the largest chlor-alkali manufacturers in Asia. The company supplies the plastic resins and an array of the basic chemicals that support modern life. Tosoh’s petrochemical operations supply ethylene, polyethylene, and functional polymers, while its advanced materials business serves the global semiconductor, display, and solar industries. Tosoh has also pioneered sophisticated bioscience systems that are used for the monitoring of life-threatening diseases. In addition, Tosoh demonstrates its commitment to a sustainable future in part by manufacturing a variety of eco-products.
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