Tosoh Announces Capacity Increase for Chloroprene Rubber (CR)

Tokyo, Japan— Tosoh announced its decision to increase its production capacity for chloroprene rubber (Skyprene®), part of the functional polymer product lineup of its Specialty business that the company manufactures, at its Nanyo Complex in Shunan City, Yamaguchi Prefecture.

CR produced from these facilities are used in the manufacture of automotive hoses and belts, industrial parts, and adhesives. In recent years, the supply–demand balance in the CR market continues to remain tight, driven especially by increasing demand for medical gloves1.

The company plans to take measures to renew its facilities in line with the expansion of its production capacity and will strive to ensure the stable supply of chloroprene rubber while responding to growing demand. Tosoh plans further expansions of the scale and profitability of its business going forward.


Location:  Nanyo Complex, Yamaguchi Prefecture
Facilities: CR manufacturing facilities
Annual Capacity:  37,000t (after debottlenecking)
Investment:  Approximately ¥5 billion
Construction Start:  August 2019
Completion:  October 2021 

1 Medical Gloves: Rubber gloves which are mainly used in medical settings (e.g. during surgery and medical checkup). Conventional rubber gloves are usually made from natural rubber and acrylonitrile butadiene rubber (NBR), which are not suitable for those with latex allergies. Medical gloves made from CR have grown in demand as a popular alternative to conventional rubber gloves as they have a low risk of triggering latex allergies while offering a better fit and comfort compared to gloves made from other kinds of synthetic rubber. 




Tosoh Corporation 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 ¥861.5 billion (US$7.8 billion at the average rate of ¥110.9 to the US dollar) in fiscal 2019, ended March 31, 2019.


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