Tosoh Expanding Separation and Purification Media Production with New Manufacturing Facility

Tokyo, Japan—Tosoh Corporation is set to expand its production capacity for separation and purification media by constructing a manufacturing facility at the Yokkaichi Complex, in Yokkaichi City, Mie Prefecture.

Separation and purification media are critical elements in the company’s Bioscience Division product lineup because they are essential for producing biopharmaceuticals. The biopharmaceutical market is poised for growth, driven by advances such as nucleic acid and gene therapy drugs and rising demand for established antibody drugs. The new separation and purification media production facility at the Yokkaichi Complex is Tosoh’s response to this growth opportunity.

The construction of the new facility at the Yokkaichi Complex not only enhances Tosoh Corporation's manufacturing capacity but also decentralizes the production and storage of separation and purification media. This initiative aligns with the company’s Business Continuity Plan, enhancing Tosoh Corporation's resilience and ensuring an enlarged, stable, and efficient supply of separation and purification media to meet growing market demands.

Tosoh’s expansion of its separation and purification media production capacity also reaffirms its dedication to advancing its bioscience business by setting the stage for a broadened range of product offerings.

Details of the Production Capacity Expansion


Tosoh Corporation, Yokkaichi Complex

Facility to be built

Separation and purification media production facility

Production capacity

Increase of approximately 20% after the addition of separation and purification media capacity scheduled for completion in July 2024


Approximately ¥14 billion

Construction launch

May 2024

Construction completion (planned)

December 2026

Start of commercial operations (planned)

June 2027

Related information

Tosoh Corporation News Release
August 1, 2022

Tosoh to Increase Production Capacity of Separation and Purification Media |
Bioscience | Separations & Purification


Who We Are

Tosoh Corporation is the parent of the Tosoh Group, which comprises over 100 companies worldwide and a multiethnic workforce of over 14,000 people. It generated net sales of ¥1,064.4 billion (US$7.9 billion at the average rate of ¥135.5 to the US dollar) in fiscal 2023, ended March 31, 2023.

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.

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


Lisa Lee
International Public Relations
Tosoh Corporation 

[email protected]
Tel: +81 3 5427 5118
Fax: +81 3 5427 5198