Water Resources


It is said that only about 0.01% of the water on the earth is fresh water that is easily accessible to humans.

The Toyobo Group is striving to minimize the use of limited water resources. We are conserving water resources in Japan and overseas through our products and businesses, such as the seawater desalination project, and promoting lean water use by recycling in our business activities.


Policies for the protection of water resources are discussed by the Global Environment Committee under the Sustainability Committee, and this plans to decide on future policies.

Targets and results

The Toyobo Group stipulates "environmental compliance and audits" as its code of conduct in the TOYOBO Group Fundamental Policy on the Global Environment. In addition to complying with the regulations set forth by the national and local governments, etc., and the environmental preservation agreement, we have set voluntary management standards. We have established voluntary control standards for water discharged from factories, etc., which are stricter than those required by law, and have installed detoxification equipment and taken other measures to make the discharge less harmful to the environment.

Furthermore, we are currently analyzing the water risk for each site using the Aqueduct Water Risk Atlas developed by the World Resources Institute. After the analysis, we will draw up the objectives and measures according to the risk of each site.

Four years from FY2018 to FY2021, there were no regulatory violations or incidents related to water quality or quantity.

Water draw

(Thousand tonnes)

FY Japan Overseas
2018 90,769 1,326
2019 86,406 1,162
2020 89,139 1,410
2021 83,411 1,061


(Thousand tonnes)

FY Japan Overseas
2018 87,763 1,261
2019 82,775 1,055
2020 84,858 892
2021 80,267 636

Products and technologies contributing to resolving problems with the water environment

Seawater desalination membranes help to eliminate water shortages

Almost all of the water covering the globe is seawater, with limited quantities of the fresh water that we use. As a result, regions where fresh water is difficult to use are facing water shortages. The Middle East and the Gulf region in particular are seeing ongoing, remarkable economic development, with improved living standards and increased populations. As a result, securing water for both industrial and domestic use has become problematic, and the introduction of desalination plants* is underway. The Toyobo Group supplies the membranes used in seawater desalination facilities, thereby helping to eliminate water shortages in these regions.

  • * Seawater desalination facilities: These removes the various salts present in seawater in order to produce fresh water, providing water for drinking and industrial use.

HOLLOSEP® hollow fiber forward osmosis membranes

RO membrane for seawater desalination

RO membrane for seawater desalination

The Toyobo Group’s hollow fiber type reverse-osmosis (RO) membrane element HOLLOSEP® boasts high water recovery rate, offers superior chlorine tolerance, and can inhibit the proliferation of microorganisms through chlorine sterilization. We produce high quality drinking water in the Middle East and Gulf countries that have high-temperature, highly saline seawater, harsh conditions for reverse osmosis membranes. With over 30 years' usage, these are highly acclaimed and hold a high market share. These are also used domestically, in Japan's largest seawater desalination plant.