Sanyo Chemical Group uses water resources in various aspects of chemical product manufacturing.
Recognizing that our Group's business activities share a close connection with water resources, we are committed to saving and making effective use of water, as well as reducing water pollution arising from wastewater emitted outside our facilities.
As a result of assessing water stress using Aqueduct, an assessment tool published by the World Resources Institute (WRI), we confirmed that the risk level at Sanyo Kasei (Thailand) Ltd.'s Rayong Factory was "High." We also confirmed that the risk levels at other domestic and overseas production sites are not at the High or Extremely High levels.
Policy
We have been working to reduce water withdrawal as a goal of Environmental Action Plan 21-24. From FY2025 onwards, we continue to work towards a reduction target of at least 5% compared to the base year (FY2019).
In order to control the emission of water pollutants, we will prevent leakage within our facilities and monitor the pollutants in wastewater to stay within legal limits.
System
The Responsible Care Department of the Responsible Care Division serves as the secretariat, and hold environmental action plan promotion meetings from FY2025 to manage the progress of and share information on measures such as water saving implemented at each facility.We will replicate these results at other overseas facilities.
Water Withdrawal Targets and Results
We were able to achieve our targets for FY2024, the final fiscal year of Environmental Action Plan 21-24.
Environmental Action Plan 21-24
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| Environmental Action Plan 21-24 |
FY2019 (base year) |
FY2021 | FY2022 | FY2023 | FY2024 | Evaluation | FY2025 (targets) |
|---|---|---|---|---|---|---|---|
| Water withdrawal (thousand ㎥) |
4,354 | 4,295 | 4,333 | 3,973 | 3,732 | Within target level | 4,136 or less |
| Percentage reduction (compared to FY2019) |
－ | 1.3% | 0.5% | 8.8% | 14.3% | 5% or above |
Scope: All facilities of Sanyo Chemical Industries, Ltd., all domestic subsidiaries & affiliates, and overseas subsidiaries & affiliates that have production sites*
- Sanyo Chemical Texas Industries, LLC; Sanyo Kasei (Thailand) Ltd.; San-Dia Polymers (Nantong) Co., Ltd.
Reduction of Water Withdrawal
Approximately 90% of the water used by our Group is industrial water. Industrial water is mainly used for heating and cooling water, cleaning water, and drainage water used in manufacturing facilities and ancillary facilities.
Tap water is used for polymerization water for polymer production and as dilution water for products. It is also used to clean products, intermediates, and manufacturing equipment. No groundwater or seawater is used.
Water withdrawal in FY2024 decreased both in Japan and overseas, totaling 3,733 thousand ㎥ (a decrease of 6% year on year).
Although our production volume decreased by approximately 23% from the previous fiscal year, the heating and cooling water used in manufacturing facilities and ancillary facilities is not affected by increases or decreases in production volume. As such, it is easy to see the effects of our water conservation and water recycling measures. We will continue to make improvements in this area.
Trends in water withdrawal
Trends in water discharge
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Breakdown of Water Withdrawal
(unit: thousand m3)
| Scope | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 | ||
|---|---|---|---|---|---|---|---|
| Water withdrawal total | Domestic and overseas | 4,269 | 4,295 | 4,333 | 3,973 | 3,732 | |
| Tap water | Domestic | 132 | 137 | 139 | 130 | 129 | |
| Overseas | 263 | 284 | 261 | 204 | 17 | ||
| Total | 395 | 421 | 400 | 334 | 147 | ||
| Industrial water | Domestic | 3,367 | 3,558 | 3,513 | 3,202 | 3,158 | |
| Overseas | 507 | 315 | 421 | 437 | 427 | ||
| Total | 3,873 | 3,874 | 3,933 | 3,639 | 3,585 | ||
| Surface water (rivers, lakes, marshes, etc.) | Domestic and overseas | 0 | 0 | 0 | 0 | 0 | |
| Ground water | Domestic and overseas | 0 | 0 | 0 | 0 | 0 | |
| Seawater | Domestic and overseas | 0 | 0 | 0 | 0 | 0 | |
Water Conservation and Recycling
To the extent possible, we constantly reuse polymerization water for polymer production and cleaning water for products and intermediates.We also reuse steam condensate as water.Each facility establishes our own area of focus for water saving and recycling as part of efforts to reduce water consumption.
Water Discharge
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Water Discharge by Destination
(unit: thousand m3)
| Scope | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 | |
|---|---|---|---|---|---|---|
| Water discharge | Domestic | 2,738 | 3,039 | 3,024 | 2,711 | 2,722 |
| Overseas | 149 | 132 | 274 | 201 | 180 | |
| Total | 2,887 | 3,171 | 3,298 | 2,912 | 2,952 | |
| Water discharged into surface waters (rivers, lakes, marshes, etc.) | Domestic | 1,688 | 1,912 | 1,924 | 1,671 | 1,763 |
| Water discharged underground | Domestic | 0 | 0 | 0 | 0 | 0 |
| Marine discharge | Domestic | 889 | 985 | 955 | 899 | 860 |
| Water discharged to third parties (sewage systems, etc.) | Domestic | 159 | 140 | 144 | 141 | 149 |
Products that Contribute to Water Resource and Water Environment Conservation
Through a lineup that includes flocculants, organic coagulants, and biodegradable lubricant base oils, we contribute to water saving, water purification, and biodegradability for the effective use of water resources.
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