Notice Regarding Resumption of Manufacturing Activities After the Unusual Noise and Electrical Accident at Tosoh’s Nanyo Complex

Tokyo, Japan—Tosoh Corporation reports that, as of Tuesday, April 10, 2018, the below list of manufacturing operations have resumed following the unusual noise and electrical accident that occurred on Friday, April 6, 2018 at 10:35. Tosoh also reports on operations whose resumption is underway.

We apologize for the trouble we are causing the local community and municipalities and to our customers.

Tosoh Nanyo Complex operations and subsidiaries that have resumed manufacturing:

TOYOPEARL® (separation media)
High-silica zeolite
Chloroprene rubber
Chlorosulfonated polyethylene
Caustic soda
Polycarbonate diols
Tosoh Finechem Corporation
Tosoh Silica Corporation
Tosoh SGM Corporation

Operations preparing for resumption (and scheduled restart date):

Vinylchloride monomer (April 15, 2018)
Paste PVC (Apriil 19, 2018)
Methylene diphenyl diisocyanate (April 16, 2018)
Toluene diisocyanate and derivatives (April 16, 2018)
Hexamethylene diisocyanate and derivatives (April 17, 2018)



Tosoh is the parent of the Tosoh Group, which comprises over 100 companies worldwide and a multiethnic workforce of over 12,000 people and generated net sales of ¥753.7 billion (US$6.3 billion at the average rate of ¥120.15 to the US dollar) in fiscal 2016, ended March 31, 2016.


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.

Stock Exchange Ticker Symbol: 4042


This document may contain forward-looking statements, including, without limitation, statements concerning product development, objectives, goals, and commercial introductions, which involve certain risks and uncertainties. Forward-looking statements are identified through the use of the word anticipates and other words of similar meaning. Actual results may differ significantly from the results expressed in forward-looking statements.


For more information, please contact


Jeff Markley
International Corporate Development
Tosoh Corporation
Tel: +81 3 5427 5118
Fax: +81 3 5427 5198