Efforts to Reduce Water Risk

Efforts to Reduce Water Risk

We recognize that access to fresh water is essential for human life and wellbeing and is recognized by the United Nations (UN) as a human right. So, we are aware that water risks in business activities are one of the business issues we face.
We have established a company-wide Working Group (WG) as for our response to water risks as well as climate change.
The WG is examining the water security countermeasures that companies should address with reference to the details of the CDP Water Security Questionnaire. Using the Aqueduct Water Risk Data disclosed by Aqueduct (World Resources Institute: WRI), the Group has identified water-related impacts on business activities around our production facilities. And we will engage in efforts to reduce water intake and waste water through effective use of the water appropriate for the size of the impact. In this evaluation, it was confirmed that none of our bases/sites operates in areas where there is a high risk of any of the following: water supply fluctuates from season to season, water may run short due to drought, groundwater may run out, or access to drinking water is not ensured there or thereabouts. And we are examining water utilization plans, improvement of work processes, and the promotion of recycled water usage in bases that operate in communities that have been assessed as being impacted by water either now or in the future.

Interactions with water as a shared resource

Identify water-related impacts for our business activities (manufacturing)

Approach: Accessed the water-related impacts by Aqueduct Water Risk Data (Aqueduct, WRI) at the end of February 2020.
Result: Around Zhucheng (China), where the Group’s production facility is located, has been evaluated the water-related impact as Extremely high because in this area, there is a large demand for water, the yearly and monthly fluctuations in the water supply are significant, and the development status of wastewater treatment infrastructure. Around Chon Buri (Thailand) has been evaluated the water-related impact as high because in this area, there is a large demand for water, the past flooding of surrounding rivers, and the development status of wastewater treatment infrastructure.
In addition, the predictions for 2030 has assessed that, if stable economic development continues in the future, the ratio of demand to water supply are expected to increase more than the present demand. In this forecast, the demand will be 1.4 times in Zhucheng (China) and Grad Beograd (Serbia), 1.7 times for the area around Perak (Malaysia).

In addition, checks are made to ensure that no business sites use water taken from a wetland listed in the Ramsar Convention or any other nationally or internationally proclaimed conservation area, the water source has been identified as having high biodiversity value, such as species diversity and endemism, or total number of protected species, and a high value or importance to local communities and indigenous peoples. As for impacts for which sufficiently accurate information is difficult to obtain for our Group to report on at the current time, we will work to ascertain current conditions giving priority to areas where there is a risk of increased water risk in the future.

  • *Identify using the following information;
    Ramsar Sites Information Service, UNESCO-World Heritage Center, Ministry of the Environment (Japan), Agency for Cultural Affairs (Japan)

Reducing Water Withdrawal and Water Discharges

Primarily at its production facilities, our Group mainly withdraw water from municipal water supplies or other public or private water utilities and ground water for its boiler equipment, parts processing facilities, product cooling, cooling towers, welfare facilities, and other facilities.
Regarding water withdrawal and water discharges, each production facility is responsible establishing its own goals based on the size of the facility and products they produce. We are also revamping our equipment to reuse water as much as possible in each production process.

Achieved Full Recycling of Steam Drain
Goal 6

TOYO TIRE (ZHUCHENG) CO., LTD. is based in the city of Zhucheng, China, where, according to an assessment by international organizations, water risks are high there or thereabouts due to the sheer number of water consumers.
They purchase large quantities of steam for use at their tire production process but are aware of the need to save water. So they began recovering contaminant-free steam drainage (warm water generated as a result of steam cooling down) for recycling in an effort to reduce water intake. As they succeeded in recycling all waste steam, they were able to reduce water intake by more than 10% annually.

Water withdrawal


2017 2018 2019
Total water withdrawal from all areas 3891.5 3719.1 3737.3*
By Source
Surface water 18.8 0.00 0.00
Groundwater 2909.9 2734.9 2726.8
Third-party water 962.7 984.2 1010.5
Total water withdrawal from Areas with water stress 87.2
By Source
Surface water 0.00
Groundwater 86.1
Third-party water 1.10
  • * Third-party verified data
  • **We had used surface water at one manufacturing site in Japan until 2017. However, in vicinity area, the range of seasonal fluctuation of precipitation is increasing year by year, and by the some climate scenarios (The Japan Meteorology Agency) it is estimated that the number of days which lack of rainfall will remarkable increase in the future. So we have change the water source to third-party water since 2018 aim to stability provide water necessary for the continuation of our business and consider the water security in vicinity area where use the same surface water source.
  • ***At present, all water intake is from fresh water (water for which the total dissolved solids are 1,000 mg/L or less)
Reference: In-house management goals and results
  • Goals: 10% reduction of water withdrawal by source over 5 years from 2018
  • Boundary: TOYO TIRE Corp. (Headquarters, Sendai Plant, Kuwana Plant (tire/ Automotive Parts), Hyogo Manufacturing Complex, Tire Technical Center, Automotive Parts Technical Center, Corporate Technology Center, Tire Proving Ground), Fukushima Rubber Co., Ltd., Toyo Soflan Co., Ltd., Ayabe Toyo Rubber Co., Ltd., Orient Machinery Co., Ltd. (Headquarters, Sendai branch)
  • Management unit: t
  • FY2019 results: 1.30% reduction from FY2018

Management of Water Discharge-related Impacts at Manufacturing Bases (Toyo Tire Corporation)

Manufacturing Bases Destination Control parameters Regulatory standards
Sendai Plant -Surface water *Gokenbori River
- Third-party water *municipal wastewater treatment plants
pH, BOD, COD, SS, fluorine (F), boron (B), zinc (Zn), n-Hex (mineral) the regulation value by the Water Pollution Control Law
Kuwana Plant - Surface water *Sakoji River
- Third-party water *municipal wastewater treatment plants
pH, BOD, COD, SS, n-Hex (mineral), nitrogen (N), phosphorus, fluorine (F), Escherichia coli (E. coli), nitrite-nitrogen and nitrate-nitrogen, ammoniacal nitrogen, ammonia, etc. the regulation value by the prefectural ordinance and the pollution prevention agreements with the local community
Hyogo Manufacturing Complex -Surface water *Seto River
- Third-party water *municipal wastewater treatment plants
pH, BOD, COD, SS, n-Hex (mineral), nitrogen (N), phosphorus, zinc (Zn), Escherichia coli (E. coli), dichloromethane the regulation value by the Water Pollution Control Law

Water discharge


2017 2018 2019
Total water discharge to all areas 2601.8 2284.3 2194.8*
By destination
Surface water 1816.8 1542.8 1525.0
Third-party water 785.0 741.5 669.7
Total water discharge to areas with water stress *Third-party water 86.9
  • * Third-party verified data
  • **At present, all water intake is from fresh water (water for which the total dissolved solids are 1,000 mg/L or less)

Water Consumption


2017 2018 2019
Total water consumption of all areas 1289.7 1434.8 1547.1*
Total water consumption of areas with water stress - - 0.22
  • * Third-party verified data
Water with a High Level of Sodium Hypochlorite Discharged from Toyo Tire Corporation’s Sendai Plant

On October 2, 2019, it was confirmed that water discharge from our Sendai Plant caused a temporary rise in the chlorine concentration of the Gokenbori River that runs by it.
To prevent a recurrence, we re-trained the plant’s employees on the risks associated with substances subject to the Water Pollution Prevention Act and how to respond to abnormalities, and we reminded them of the emergency contact tree that is in place for when an abnormality is detected. Furthermore, they installed a chlorine concentration continuous measurement meter to launch a system that automatically suspends discharging of water outside of the plant when an abnormality occurs.
We offer our sincere apology to the host community, residents, and relevant administrative bodies for the enormous concerns and inconvenience that this may have caused.