Environment
- Environment
- Disclosure of information related to climate change response
- Disclosures (TNFD) recommendations
- Performance Data (Environmental)
Performance Data (Environmental)
Scope of reporting and data coverage rate
Aisin Corporation
48.5%
49 domestic Group companies
62.5%
Consolidated
100%
Calculation method for coverage rate
Historical data may have been restated due to changes in the scope of aggregation or items being aggregated.
| Aisin Corporation | Aisin Corporation (parent) |
|---|---|
| 49 domestic Group companies | Aisin, Aisin Takaoka, Aisin Keikinzoku, Aisin Kiko, Aisin Sin’ei, Aisin Fukui, Hosei Brake Industry, ADVICS, Aisin Shiroki, ART Metal Mfg., Aisin Development, Aisin Tohoku, Aisin Kyushu, Aisin Hokkaido, Aichigiken, Saitama Kogyo, Kotobuki Industry, Yamagata Clutch, Sinsan, Konan Kogyo, Hekinan Unso, Sanetsu Unyu, Technova, Aisin Collabo, Aisin Software, FT Techno, IMRA Japan, CVTEC, CVTEC Hokkaido, CVTEC Kyushu, Aisin Mizunami, Aisin Metaltech, Aisin Digital Engineering, Aisin Logitech Service, Aisin Machinetech, Awqius Japan, Aisin Sinwa, Shinwa Kogyo, AT Kyusyu, Aisin Takaoka Tohoku, Hirabayashi Industry, Aisin Takaoka Engineering, Shinko Seiki, TECHNO-METAL, Tonamino Kogyo, AS Brake Systems, Kyushu Shiroki, Matsumi Corporation, Suncircle (49 companies) |
Resource input and emissions (FY2026)
Pollutant Release and Transfer Register (PRTR): a system under which businesses themselves track the amounts of hazardous chemicals they release from their sites into the environment (air, water, soil) or transfer offsite in waste and report them to the government, which compiles and publishes the release and transfer amounts based on the reported data
Sulfur hexafluoride (SF6): a greenhouse gas with a global warming potential 22,800 times that of CO2
Greenhouse gases (consolidated)
Greenhouse gas emissions
Calculation method
Total CO2 emissions = Σ (fuel consumption × CO2 emission factor) + Σ (purchased electricity × CO2 emission factor)
CO2 emission factor
[Emissions for FY2020–FY2026]
Japan
Fuel
Emission factors based on IPCC 2006, 2006 IPCC Guidelines for National Greenhouse Gas Inventories * For city gas, the coefficient specified in the Act on the Promotion of Measures to Cope with Global Warming (Japan) is used
Purchased electricity
Adjusted emission factors by electric utility provider published by the ministry of the environment and the ministry of economy, trade and industry
(2021: FY2021, 2022: FY2022, 2023: FY2023, 2024: FY2024, 2025: FY2025)
Overseas
Fuel
Emission factors based on IPCC 2006, 2006 IPCC guidelines for national greenhouse gas inventories
Purchased electricity
Emission factors based on IEA: CO2 emissions from fuel combustion
(FY2022: IEA 2019, 2021 edition; FY2023: IEA 2020, 2022 edition; FY2024: IEA 2021, 2023 edition; FY2025: IEA 2022, 2024 edition; FY2026: IEA 2023, 2025 edition)
Global warming potential (GWP) values are those specified in the Act on the Promotion of Measures to Cope with Global Warming (Japan)
Total scope 1, 2, and 3
(t-CO2e)
| FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
|---|---|---|---|---|
| 25,530,744 | 24,088,622 | 25,224,731 | 23,596,868 | 24,087,189 |
CO2 emissions from manufacturing
(t-CO2)
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
|---|---|---|---|---|---|
| Scope1 | 602,011 | 533,137 | 525,133 | 491,009 | 475,460 |
| Scope2 | 1,963,240 | 1,745,595 | 1,755,040 | 1,657,897 | 1,218,240 |
| Total | 2,565,251 | 2,278,732 | 2,280,173 | 2,148,906 | 1,693,700 |
Supply chain emissions (Scope 3)
(t-CO2e)
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
|---|---|---|---|---|---|
| 1. Purchased products and services | 11,373,619 | 10,736,420 | 11,177,441 | 11,022,068 | 11,545,813 |
| 2. Capital goods | 752,442 | 761,807 | 791,314 | 769,659 | 775,210 |
| 3. Fuel and energy-related activities not included in Scope 1 and 2 | 409,028 | 361,030 | 348,710 | 328,008 | 264,606 |
| 4. Transportation and distribution (upstream) | 608,026 | 669,230 | 689,386 | 554,313 | 548,421 |
| 5. Waste generated from operations | 54,752 | 53,040 | 58,472 | 55,266 | 58,255 |
| 6. Business travel | 11,552 | 13,814 | 16,149 | 17,735 | 14,728 |
| 7. Employee commutation | 37,080 | 32,963 | 36,868 | 51,288 | 41,481 |
| 8. Leased assets (upstream) | ― | ― | ― | ― | ― |
| 9. Transportation and distribution (downstream) | 158,884 | 168,284 | 175,895 | 192,164 | 204,402 |
| 10. Processing of sold products | 492,297 | 517,713 | 379,242 | 311,603 | 254,450 |
| 11. Use of products sold | 8,814,825 | 8,230,378 | 9,042,565 | 7,967,008 | 8,411,219 |
| 12. End-of-life handling of products sold | 29,558 | 29,261 | 29,789 | 21,936 | 157,345 |
| 13. Leased assets (downstream) | ― | ― | ― | ― | ― |
| 14. Franchising | ― | ― | ― | ― | ― |
| 15. Investments | 150,733 | 167,752 | 127,995 | 95,071 | 72,484 |
| Total | 22,892,795 | 21,741,694 | 22,873,825 | 21,386,118 | 22,348,414 |
Greenhouse gas reduction targets certified by SBTi
| Scope | FY2031 target (vs. FY2020) |
|---|---|
| Scope 1 & 2 | 46.2% reduction |
| Scope 3 (categories 1 & 11) | 27.5% reduction |
Progress toward targets
In November 2023, Aisin received certification from the science-based targets initiative (SBTi) confirming that its Scope 1 and 2 reduction targets align with the 1.5°C pathway. Alongside this certification, the company also received approval confirming that its reduction targets for Scope 3 emissions intensity in categories 1 and 11 align with the Well Below 2°C pathway.
Reduction rate (%) compared to base fiscal year (FY2020)
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
|---|---|---|---|---|---|
| Scope 1 & 2 | 5.1 | 15.6 | 15.4 | 20.5 | 37.4 |
| Scope 3 (categories 1 & 11) | 0.1 | 6.2 | 0.0 | 6.1 | 1.3 |
Environmental management
Number of companies with ISO 14001 certification and certification rate
(companies)
| Aisin Corporation | |
|---|---|
| Item | FY2026 |
| Number of production companies* | 127 |
| Number of acquired companies* | 115 |
| Percentage of companies acquired (%) | 91 |
Excludes companies operating for less than three years since production start
Number of environmental incidents and agreement value exceedances
(incidents)
| Aisin Corporation | |||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| Regulatory violations, exceeding agreed values | 0 | 0 | 0 | 0 | 0 |
| Environmental incidents | 1*1 | 0 | 0 | 1*12 | 1*16 |
| Domestic and overseas Group companies | |||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| Regulatory violations, exceeding agreed values | 2*2,*3 | 1*5 | 3*6,*7,*8 | 1*13 | 2*17,*18 |
| Environmental incidents | 2*1,*4 | 0 | 3*9,*10,*11 | 3*12,*14,*15 | 1*16 |
Aisin Corporation (ATF spill)
Shiroki industries (exceeded agreed value for zinc)
Anqing Art Tp Piston (exceeded COD standards)
Konan Industries (light oil spill)
Aichigiken (exceeded BOD standard)
Guangzhou Shiroki Corp. (exceeded phosphorus standard)
Aisin Kyushu Casting (exceeded NOx standard)
Aisin Shiroki (exceeded standard for normal-hexane extracts)
Aisin Shiroki (heavy oil spill)
Aisin Autoparts Thailand (oil-containing wastewater spill)
Aisin Metaltech (bonding wastewater spill)
Aisin Corporation (domestic wastewater overflow causing offsite discharge)
Aisin Fukui (domestic wastewater BOD exceeding agreed value)
Aisin Chemical (offsite discharge of rainwater with pH exceeding standard)
ADVICS Manufacturing Mexico (offsite discharge of acidic waste liquid)
Aisin Corporation (offsite discharge of undried paint together with rainwater)
TOYOTA AISIN PHILIPPINES (exceeded coliform count standard)
Aisin Fukui (improper disposal of fluorocarbon-containing equipment and fluorocarbon leakage)
Environmental audit (conducted by departments charged with environmental management)
| Aisin Corporation | |||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| Number of sites audited | 37 | 37 | 37 | 38 | 39 |
| Number of items identified as needing improvement | 2 | 0 | 3 | 0 | 1 |
| Number of internal auditors | 1,385 | 1,132 | 1,412 | 1,508 | 1,656 |
| Number of auditor training sessions | 4 | 11 | 10 | 11 | 11 |
| Domestic Group companies: 49 (FY2022: 50 companies, FY2023: 56 companies, FY2024: 52 companies, FY2025: 51 companies) |
|||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| Number of sites audited | 158 | 146 | 169 | 139 | 154 |
| Number of items identified as needing improvement | 418 | 313 | 369 | 269 | 409 |
| Number of internal auditors | 3,265 | 3,034 | 3,510 | 3,799 | 3,874 |
| Number of auditor training sessions | 28 | 34 | 42 | 52 | 46 |
Energy
Calorific value conversion for each energy source uses coefficients specified in the Enforcement Regulations of the Law Concerning the Rational Use of Energy.
Total direct energy consumption
(GJ)
| Aisin Corporation | ||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Total direct energy consumption | 2,864,497 | 2,407,608 | 1,984,274 | 1,726,453 | 1,662,801 | |
| Breakdown by type | Coal products (anthracite, coke, etc.) |
0 | 0 | 0 | 0 | 0 |
| Natural gas | 2,581,144 | 2,139,133 | 1,708,647 | 1,480,609 | 1,447,247 | |
| Petroleum products (gasoline, diesel oil, LPG, etc.) |
283,353 | 268,475 | 275,627 | 245,844 | 215,554 | |
| Consolidated (manufacturing) | ||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Total direct energy consumption | 11,106,260 | 9,926,621 | 9,600,137 | 8,937,576 | 8,608,173 | |
| Breakdown by type | Coal products (anthracite, coke, etc.) |
1,387,412 | 1,166,380 | 1,307,785 | 1,313,370 | 1,294,203 |
| Natural gas | 8,230,803 | 7,377,476 | 6,965,737 | 6,344,657 | 6,047,060 | |
| Petroleum products (gasoline, diesel oil, LPG, etc.) |
1,488,045 | 1,382,765 | 1,326,614 | 1,279,549 | 1,266,910 | |
Indirect energy consumption
(GJ)
| Aisin Corporation | ||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Total indirect energy consumption | 10,172,084 | 9,368,381 | 9,385,821 | 8,599,433 | 7,849,481 | |
| Breakdown by type | Non-renewable energy | 10,146,855 | 6,134,185 | 7,096,447 | 7,464,069 | 638,837 |
| Non-renewable energy ratio (%) | 99.8 | 65.5 | 75.6 | 86.8 | 8.1 | |
| Renewable energy (including environmental value) | 25,230 | 3,234,196 | 2,289,374 | 1,135,364 | 7,210,644 | |
| Renewable energy ratio (%) | 0.2 | 34.5 | 24.4 | 13.2 | 91.9 | |
| Consolidated (manufacturing) | ||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Total indirect energy consumption | 45,593,817 | 44,243,491 | 44,338,981 | 42,248,241 | 41,462,199 | |
| Breakdown by type | Non-renewable energy | 43,925,754 | 38,034,800 | 36,169,130 | 35,638,882 | 26,561,912 |
| Non-renewable energy ratio (%) | 96.3 | 86.0 | 81.6 | 84.4 | 64.1 | |
| Renewable energy (including environmental value) | 1,668,063 | 6,208,691 | 8,169,851 | 6,609,359 | 14,900,287 | |
| Renewable energy ratio (%) | 3.7 | 14.0 | 18.4 | 15.6 | 35.9 | |
Chemical substances
(t)
| Aisin Corporation | |||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| PRTR emissions | 391 | 239 | 204 | 206 | 261 |
| Domestic Group companies: 49 (FY2022: 50 companies, FY2023: 56 companies, FY2024: 52 companies, FY2025: 51 companies) |
|||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| PRTR emissions | 537 | 343 | 358 | 417 | 396 |
Raw materials input
(t)
| Aisin Corporation | ||||||
|---|---|---|---|---|---|---|
| 項目 | FY2022 | FY2023 | FY2024 | FY2025 | FY2026* | |
| Total raw materials input | 798,729 | 741,301 | 924,037 | 858,981 | 936,097 | |
| Breakdown by type | Metals, resins, etc. (purchased materials) | 798,338 | 741,075 | 923,686 | 858,655 | 934,747 |
| Chemical substances (PRTR reportable substance handling volume) | 391 | 226 | 351 | 326 | 1,350 | |
Increase due to the integration of the former Aisin Chemical
| Domestic Group companies: 49 (FY2022: 50 companies, FY2023: 56 companies, FY2024: 52 companies, FY2025: 51 companies) |
||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Total raw materials input | 1,504,520 | 1,424,355 | 1,605,489 | 1,527,092 | 1,541,005 | |
| Breakdown by type | Metals, resins, etc. (purchased materials) | 1,503,174 | 1,423,623 | 1,601,733 | 1,523,521 | 1,537,275 |
| Chemical substances (PRTR reportable substance handling volume) | 1,346 | 733 | 3,756 | 3,571 | 3,730 | |
Waste & recycling
(t)
| Aisin Corporation | ||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Waste and recyclable materials | Total waste discharge | 128,004 | 127,454 | 121,935 | 112,270 | 116,050 |
| Recycled resources (recycling) volume | 127,584 | 126,912 | 119,412 | 110,213 | 115,498 | |
| Recycling rate (%) | 99.7 | 99.6 | 97.9 | 98.2 | 99.5 | |
| Final waste treatment volume | 15.3 | 0.2 | 0.4 | 0.5 | 56.5* | |
| Industrial waste | Total waste discharge | 9,940 | 9,303 | 9,191 | 8,273 | 11,519 |
| Recycled resources (recycling) volume | 9,521 | 8,762 | 6,668 | 6,216 | 10,967 | |
| Recycling rate (%) | 95.8 | 94.2 | 72.5 | 75.1 | 95.2 | |
| Final waste treatment volume | 15.3 | 0.2 | 0.4 | 0.5 | 56.5* | |
Increase due to the demolition of buildings at the Shintoyo and Fujioka Plants
| Domestic Group companies: 49 (FY2022: 50 companies, FY2023: 56 companies, FY2024: 52 companies, FY2025: 51 companies) |
||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Waste and recyclable materials | Total waste discharge | 444,466 | 417,436 | 483,885 | 423,209 | 477,527 |
| Recycled resources (recycling) volume | 433,710 | 408,810 | 472,496 | 415,085 | 470,133 | |
| Recycling rate (%) | 97.6 | 97.9 | 97.6 | 98.1 | 98.5 | |
| Final waste treatment volume | 2,663.3 | 2,322.9 | 3,039.6 | 2,111.9 | 2,211.5 | |
| Industrial waste | Total waste discharge | 160,314 | 144,912 | 163,520 | 140,980 | 174,435 |
| Recycled resources (recycling) volume | 149,557 | 136,286 | 152,132 | 132,856 | 167,041 | |
| Recycling rate (%) | 93.3 | 94.0 | 93.0 | 94.2 | 95.8 | |
| Final waste treatment volume | 2,663.3 | 2,322.9 | 3,039.6 | 2,111.9 | 2,211.5 | |
Water
Water resource input volume
(m3)
| Aisin Corporation | ||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Total input volume | 3,759,825 | 3,179,841 | 3,337,982 | 2,956,178 | 2,964,915 | |
| Breakdown by type | Public water supply | 863,809 | 634,353 | 597,423 | 587,941 | 609,899 |
| Industrial water | 2,350,054 | 1,944,084 | 1,938,072 | 1,786,936 | 1,815,958 | |
| Groundwater | 545,962 | 601,404 | 802,487 | 581,301 | 539,058 | |
| Consolidated | ||||||
|---|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 | |
| Total input volume | 15,050,599 | 14,015,795 | 14,119,698 | 13,126,934 | 13,029,393 | |
| Breakdown by type | Public water supply | 3,770,163 | 3,460,834 | 3,405,758 | 3,168,517 | 3,348,502 |
| Industrial water | 8,610,289 | 7,937,978 | 8,009,387 | 7,457,756 | 7,200,801 | |
| Groundwater | 2,670,147 | 2,616,984 | 2,704,552 | 2,500,661 | 2,480,090 | |
Total discharge volume
(m3)
| Aisin Corporation | |||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| Public water areas | 3,353,633 | 2,941,031 | 2,848,780 | 2,341,248 | 2,318,227 |
| Domestic Group companies: 49 (FY2022: 50 companies, FY2023: 56 companies, FY2024: 52 companies, FY2025: 51 companies) |
|||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| Public water areas | 7,208,541 | 6,579,416 | 6,544,203 | 5,934,957 | 5,859,307 |
Transportation
Calorific values for each energy source are converted using the coefficients specified in the Law Concerning the Rational Use of Energy.
CO2 emissions from transportation
(t-CO2)
| Aisin Corporation | |||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| Total waste discharge | 26,909 | 26,483 | 26,143 | 26,054 | 25,830 |
| Domestic Group companies: 49 (FY2022: 50 companies, FY2023: 56 companies, FY2024: 52 companies, FY2025: 51 companies) |
|||||
|---|---|---|---|---|---|
| Item | FY2022 | FY2023 | FY2024 | FY2025 | FY2026 |
| Total waste discharge | 89,691 | 86,823 | 86,077 | 84,075 | 82,604 |
Emissions data by plant
“Water quality”
Units: pH (none), E. coli (cells/cc), dioxins (pg-TEQ/l), others (mg/l), { } (daily average), ― (not set), ND (below detection limit)
Regulatory limit: the strictest values specified in the environmental laws/regulations, ordinances and agreements
If measured only once, the value is listed in the “maximum” column.
For the following regulated items, values were below the limit of quantification (not detected) at all plants Phenols, all chromes, all cyanides, hexavalent chromium, cadmium, lead, all mercuries, alkyl mercury, arsenic, organic phosphorus, PCB, trichloroethylene, tetrachloroethylene, dichloromethane, carbon tetrachloride, 1,2-dichloroethane, 1,1-dichloroethylene, cis-1,2-dichloroethylene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, 1,3-dichloropropene, thiuram, simazine, thiobencarb, benzene, selenium
“Atmosphere”
Units: particulates (g/Nm3), NOx (ppm), SOx (k value), hydrogen chloride (mg/Nm3), dioxins (ng-TEQ/Nm3)
Regulatory limit: the strictest values specified in the environmental laws/regulations, ordinances and agreements
Measured value: the maximum value recorded (if multiple facilities exist, the value for the facility with the most stringent regulatory limit is presented)
“PRTR act handling volume and discharge/transfer volume”
Unit: kg/year, except for dioxins (mg-TEQ/year)
Handling volume: excludes volumes below 1000kg/year (500 kg/year for specified Class 1 substances)
Kariya district
Water quality (prototype plant / technical development research institute)
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 5.8~8.6 | 7 | 7.4 | 8 |
| COD | 25{20} | 20 | 1.3 | 1.5 | 4.2 |
| BOD | 25{20} | 20 | ND | 1.5 | 7.2 |
| SS | 30{20} | 20 | ND | 0.4 | 1 |
| Oil content | 5 | 2 | ND | 0.2 | 0.3 |
| E. coli | 800 | 720 | ND | 1 | 1 |
| Total nitrogen (N) | 120{60} | 15 | 3.4 | 5.3 | 7.0 |
| Total phosphorus (P) | 16{8} | 1 | 0.01 | 0.02 | 0.03 |
| Iron (Fe) | 5 | 2 | ND | ND | ND |
| Manganese (Mn) | 10 | 2 | ND | ND | ND |
| Zinc (Zn) | 2 | 1 | 0.04 | 0.06 | 0.09 |
| Copper (Cu) | 1 | 0.5 | ND | ND | ND |
| 1,4-dioxane | 0.5 | ND | ND | ND | ND |
| Fluorine (F) | 8 | 5 | ND | 0.1 | 0.1 |
| Boron (B) | 10 | 8 | ND | ND | ND |
Atmosphere (excluding facilities owned by ADVICS)
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | 0.2 | 0.1 | <0.003 |
| Gas engine | 0.05 | 0.04 | <0.006 | |
| Water heaters and coolers | 0.1 | 0.08 | <0.002 | |
| SOx | Boiler | 1.75 | 1.4 | <0.05 |
| Gas engine | 1.75 | 1.4 | <0.3 | |
| Water heaters and coolers | 1.75 | 1.4 | <0.007 | |
| NOx | Boiler | ― | 150 | 27 |
| Gas engine | 200 | 180 | 180 | |
| Water heaters and coolers | 150 | 120 | 32 |
Handa district (Handa Plant, Handa Electronics Plant)
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.0~9.0 | 6.0~8.0 | 6.7 | 7.3 | 8 |
| COD | 15 | 10 | 1.2 | 2.9 | 4.7 |
| BOD | 15 | 10 | 0.8 | 2.7 | 7.5 |
| SS | 15 | 10 | ND | 0.2 | 0.9 |
| Oil content | 2 | 2 | ND | 0.2 | 0.3 |
| E. coli | 800 | 720 | ND | 1 | 1 |
| Total nitrogen (N) | 120{60} | 15 | 1.5 | 3.2 | 4.3 |
| Total phosphorus (P) | 16{8} | 2 | 0.02 | 0.03 | 0.04 |
| Iron (Fe) | 0.5 | 0.5 | ND | 0.1 | 0.1 |
| Manganese (Mn) | 10 | 0.5 | ND | ND | ND |
| Zinc (Zn) | 2 | 1 | ND | 0.04 | 0.06 |
| Copper (Cu) | 1 | 0.5 | ND | ND | ND |
| 1,4-dioxane | 0.5 | ND | ND | ND | ND |
| Fluorine (F) | 8 | 2 | ND | ND | ND |
| Boron (B) | 10 | 8 | ND | ND | ND |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | 0.1 | 0.08 | <0.002 |
| Water heaters and coolers | 0.1 | 0.08 | <0.003 | |
| SOx | Boiler | 1.75 | 1.5 | <0.005 |
| Water heaters and coolers | 1.75 | 1.5 | <0.09 | |
| NOx | Boiler | 150 | 120 | 42 |
| Water heaters and coolers | 150 | 120 | 25 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Silver and its water-soluble compounds |
1,300 | 0 | 0 | 0 | 0 |
| Methylenebis (4,1-phenylene) = Diisocyanate |
2,400 | 0 | 0 | 0 | 0.7 |
Anjo Plant (Enokimae)
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | ― | 5.8~8.6 | 6.4 | 7.5 | 7.9 |
| COD | ― | 10 | ND | 3.2 | 5.5 |
| BOD | ― | 10 | ND | 0.9 | 3.3 |
| SS | ― | 10 | ND | 0.3 | 2.7 |
| Oil content | ― | 1.6 | ND | 0.2 | 0.3 |
| E. coli | ― | 720 | ND | ND | ND |
| Total nitrogen (N) | ― | 10 | 1.5 | 3.6 | 6 |
| Total phosphorus (P) | ― | 1 | 0.01 | 0.14 | 0.29 |
| Iron (Fe) | ― | 3 | ND | ND | ND |
| Manganese (Mn) | ― | 3 | ND | ND | ND |
| Zinc (Zn) | ― | 1 | 0.1 | 0.36 | 0.91 |
| Copper (Cu) | ― | 3 | ND | ND | ND |
| 1,4-dioxane | 0.5 | ND | ND | ND | ND |
| Fluorine (F) | 8 | 2 | ND | ND | ND |
| Boron (B) | 10 | 8 | ND | 0.1 | 0.2 |
Shinkawa Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | ― | 5.8~8.6 | 6.7 | 7.6 | 8.3 |
| COD | ― | 20 | ND | 0.7 | 7.2 |
| BOD | ― | 20 | ND | 0.6 | 1.2 |
| SS | ― | 20 | ND | 0.1 | 0.5 |
| Oil content | ― | 3 | ND | 0.2 | 0.5 |
| E. coli | ― | 720 | ND | ND | ND |
| Total nitrogen (N) | ― | 30 | ND | 0.3 | 0.7 |
| Total phosphorus (P) | ― | 3 | ND | 0.01 | 0.03 |
| Iron (Fe) | ― | 2 | ND | ND | ND |
| Manganese (Mn) | ― | 2 | ND | ND | ND |
| Zinc (Zn) | ― | 1 | ND | 0.01 | 0.05 |
| Copper (Cu) | ― | 0.5 | ND | ND | ND |
| 1,4-dioxane | 0.5 | ND | ND | ND | ND |
| Fluorine (F) | 8 | 2 | ND | ND | ND |
| Boron (B) | 10 | 8 | ND | ND | ND |
Shintoyo Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | Not applicable: All wastewater is treated at Aisin Takaoka's wastewater treatment facility |
||||
| COD | |||||
| BOD | |||||
| SS | |||||
| Oil content | |||||
| E. coli | |||||
| Total nitrogen (N) | |||||
| Total phosphorus (P) | |||||
| Iron (Fe) | |||||
| Zinc (Zn) | |||||
| Copper (Cu) | |||||
| Fluorine (F) | |||||
| Boron (B) | |||||
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | 0.1 | 0.08 | <0.002 |
| Gas carburizing furnace | 0.2 | 0.16 | <0.002 | |
| Electric heating furnace | 0.2 | 0.16 | <0.002 | |
| Drying furnace | 0.4 | 0.32 | <0.002 | |
| SOx | Boiler | 9 | 7 | <0.07 |
| Gas carburizing furnace | 9 | 7 | <0.02 | |
| Electric heating furnace | ― | ― | ― | |
| Drying furnace | 9 | 7 | <0.09 | |
| NOx | Boiler | ― | 150 | 40 |
| Gas carburizing furnace | 200 | 160 | <3 | |
| Electric heating furnace | ― | ― | ― | |
| Drying furnace | ― | 180 | <3 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Di-2-ethylhexyl adipate | 1,700 | 0 | 0 | 0 | 0 |
| Sulfide (2,4,4-trimethylpentene) | 13,000 | 0 | 0 | 0 | 13,000 |
Ogawa Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 6.5~8.5 | 6.6 | 7.5 | 8 |
| COD | 25{20} | 10 | ND | 1.1 | 4.5 |
| BOD | 10 | 10 | ND | 0.9 | 3.1 |
| SS | 10 | 10 | ND | 0.2 | 0.7 |
| Oil content | 2 | 2 | ND | 0.2 | 0.3 |
| E. coli | 80 | 70 | ND | ND | ND |
| Total nitrogen (N) | 120{60} | 30 | 4.8 | 8.1 | 13 |
| Total phosphorus (P) | 16{8} | 3 | 0.15 | 0.48 | 0.89 |
| Iron (Fe) | 2 | 2 | ND | 0.1 | 0.3 |
| Manganese (Mn) | 2 | 2 | ND | ND | ND |
| Zinc (Zn) | 2 | 1 | 0.02 | 0.05 | 0.07 |
| Copper (Cu) | 0.2 | 0.2 | ND | ND | ND |
| 1,4-dioxane | 0.5 | ND | ND | ND | ND |
| Fluorine (F) | 2 | 2 | ND | ND | ND |
| Boron (B) | 10 | 8 | ND | 0.1 | 0.2 |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | 0.1 | 0.08 | <0.002 |
| Heating furnace (electric) | 0.2 | 0.16 | <0.002 | |
| Adhered oil treatment (ordinance) | 0.3 | 0.24 | 0.004 | |
| SOx | Boiler | 3 | 2.4 | <0.008 |
| Heating furnace (electric) | 3 | 2.4 | <0.02 | |
| Adhered oil treatment (ordinance) | 3 | 2.4 | <0.02 | |
| NOx | Boiler | ― | 120 | 27 |
| Heating furnace (electric) | 180 | 180 | 150 | |
| Adhered oil treatment (ordinance) | ― | 180 | 14 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Water-soluble zinc compounds | 1,700 | 0 | 4.5 | 0 | 1,700 |
| Nickel compounds | 2,500 | 0 | 0.1 | 0 | 150 |
| Cyclohexane | 4,000 | 4,000 | 0 | 0 | 0 |
| Heptane | 8,200 | 8,200 | 0 | 0 | 0 |
| Sulfide (2,4,4-trimethylpentene) | 2,400 | 0 | 0 | 0 | 330 |
Nishio district (Nishio Die Casting Plant, Nishio Engine Plant, machine tool plant)
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 5.8~8.6 | 6.7 | 7.2 | 7.9 |
| COD | 10 | 10 | 1.1 | 2.3 | 3.9 |
| BOD | 10 | 10 | ND | 1.1 | 3.2 |
| SS | 10 | 10 | ND | 0.2 | 0.8 |
| Oil content | 2{1} | 2 | ND | 0.2 | 0.4 |
| E. coli | 100 | 90 | ND | ND | ND |
| Total nitrogen (N) | 10 | 10 | 1.4 | 1.8 | 2.8 |
| Total phosphorus (P) | 1 | 1 | ND | 0.02 | 0.03 |
| Iron (Fe) | 3 | 3 | ND | ND | ND |
| Manganese (Mn) | 3 | 3 | ND | ND | ND |
| Zinc (Zn) | 1 | 1 | ND | 0.03 | 0.06 |
| Copper (Cu) | 0.5 | 0.5 | ND | 0.01 | 0.01 |
| 1,4-dioxane | 0.5 | ND | ND | ND | ND |
| Fluorine (F) | 5 | 2 | ND | 0.1 | 0.1 |
| Boron (B) | 10 | 8 | ND | ND | ND |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | ― | 0.1 | <0.003 |
| Melting furnace | 0.2 | 0.16 | 0.084 | |
| Heating furnace | 0.2 | 0.16 | <0.002 | |
| Waste incinerator | 0.05 | 0.04 | <0.004 | |
| Melting furnace (ordinance) | 0.4 | 0.32 | 0.0038 | |
| Heating furnace (ordinance) | 0.4 | 0.32 | <0.002 | |
| SOx | Boiler | 3 | 3 | <0.07 |
| Melting furnace | 3 | 3 | <0.6 | |
| Heating furnace | 3 | 3 | <0.02 | |
| Waste incinerator | 3 | 3 | 1 | |
| Melting furnace (ordinance) | 3 | 3 | <0.05 | |
| Heating furnace (ordinance) | 3 | 3 | <0.02 | |
| NOx | Boiler | ― | 150 | 42 |
| Melting furnace | 180 | 140 | 58 | |
| Heating furnace | 180 | 140 | 55 | |
| Waste incinerator | 150 | 120 | 75 | |
| Melting furnace (ordinance) | ― | 140 | 38 | |
| Heating furnace (ordinance) | ― | 140 | 49 | |
| HCl | Waste incinerator | 150 | 120 | 23 |
| Total mercury | Waste incinerator | 50 | 40 | 0.82 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Nickel | 1,200 | 0 | 2.3 | 0 | 26 |
| Diethanolamine | 1,800 | 0 | 0 | 0 | 1,800 |
| Diethylene glycol monobutyl ether | 1,200 | 0 | 0 | 0 | 1,200 |
| Heptane | 1,100 | 1,100 | 0 | 0 | 0 |
| Mercury | - | 0 | 0 | 0 | 0 |
| Dioxin | - | 100 | 0 | 0 | 0 |
Kinuura Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 6.0~8.6 | 6.8 | 7.2 | 7.5 |
| COD | 40{30} | 10 | ND | 2.9 | 4.4 |
| BOD | 20{15} | 10 | ND | 0.6 | 1.5 |
| SS | 25{20} | 10 | ND | 0.1 | 0.2 |
| Oil content | 10 | 5 | ND | 0.2 | 0.4 |
| E. coli | 800 | 720 | ND | ND | ND |
| Total nitrogen (N) | 120{60} | 20 | 2.3 | 4.4 | 6.7 |
| Total phosphorus (P) | 16{8} | 1 | 0.07 | 0.18 | 0.37 |
| Iron (Fe) | Not applicable: all process wastewater is treated at Aisin Sin’ei's wastewater treatment facility |
||||
| Zinc (Zn) | |||||
| Copper (Cu) | |||||
| Fluorine (F) | |||||
| Boron (B) | |||||
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | ― | 0.08 | <0.003 |
| SOx | 1.17 | 0.9 | <0.005 | |
| NOx | ― | 150 | 35 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Indium | 3,600 | 0 | 0 | 0 | 0 |
| Ethylbenzene | 14,000 | 7,800 | 0 | 0 | 0 |
| Xylene | 14,000 | 8,300 | 0 | 0 | 0 |
| Toluene | 44,000 | 18,000 | 0 | 0 | 0 |
| Methylene bis (4,1-phenylene) diisocyanate |
1,100 | 0 | 0 | 0 | 0 |
| Trimethylbenzene | 7,400 | 7,400 | 0 | 0 | 0 |
| Methyl isobutyl ketone | 1,400 | 1,400 | 0 | 0 | 0 |
Anjo district (plant 1, plant 2, motor plant)
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 6.1~7.9 | 7.0 | 7.3 | 7.6 |
| COD | 10 | 9 | ND | 2.9 | 5.7 |
| BOD | 10 | 9 | ND | 0.6 | 1.4 |
| SS | 10 | 9 | ND | ND | ND |
| Oil content | 2 | 1.8 | ND | ND | ND |
| E. coli | 80 | 70 | ND | ND | ND |
| Total nitrogen (N) | 10 | 9 | 0.2 | 1.4 | 3.6 |
| Total phosphorus (P) | 1 | 0.9 | 0.09 | 0.23 | 0.49 |
| Iron (Fe) | 3 | 2.7 | ND | ND | ND |
| Manganese (Mn) | 3 | 2.7 | ND | ND | ND |
| Zinc (Zn) | 1 | 0.9 | ND | 0.02 | 0.03 |
| Copper (Cu) | 0.5 | 0.45 | ND | ND | ND |
| 1,4-dioxane | 0.5 | 0.3 | ND | ND | ND |
| Fluorine (F) | 5 | 3 | ND | ND | ND |
| Boron (B) | 10 | 6 | ND | ND | ND |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | ― | 0.24 | 0.003 |
| Water heaters and coolers | 0.1 | 0.08 | 0.002 | |
| Heating furnace | 0.2 | 0.16 | 0.0036 | |
| SOx | Boiler | 15 | 3 | ― |
| Water heaters and coolers | 15 | 3 | ― | |
| Heating furnace | 15 | 3 | ― | |
| NOx | Boiler | ― | ― | ― |
| Water heaters and coolers | 150 | 120 | 35 | |
| Heating furnace | 130 | 130 | 100 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Xylene | 3,200 | 0.1 | 0 | 0 | 0 |
| N,N-dicyclohexylamine | 3,000 | 0 | 0 | 0 | 3,000 |
| Toluene | 11,000 | 1.8 | 0 | 0 | 0 |
| Hexane | 1,300 | 1.2 | 0 | 0 | 0 |
| Chlorinated straight-chain paraffins (limited to those with carbon numbers 14 to 17 and their mixtures) |
20,000 | 0 | 0 | 0 | 20,000 |
| Diethanolamine | 4,500 | 0 | 0 | 0 | 4,500 |
| Trimethylbenzene | 3,300 | 0 | 0 | 0 | 0 |
| Heptane | 4,900 | 4,900 | 0 | 0 | 0 |
| Sulfide (2,4,4-trimethylpentene) | 12,000 | 0 | 0 | 0 | 12,000 |
Okazaki district (Okazaki Plant, Okazaki electronics Plant)
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 5.9~8.5 | 7.1 | 7.5 | 7.8 |
| COD | 10 | 9 | 2.8 | 3.8 | 6.5 |
| BOD | 10 | 9 | ND | 0.6 | 1.7 |
| SS | 10 | 9 | ND | 1.1 | 3 |
| Oil content | 2 | 1.8 | ND | 0.5 | 0.6 |
| E. coli | 90 | 80 | ND | ND | ND |
| Total nitrogen (N) | 10 | 9 | 0.5 | 1.4 | 6.3 |
| Total phosphorus (P) | 1 | 0.9 | 0.21 | 0.32 | 0.61 |
| Iron (Fe) | 3 | 2.7 | ND | ND | ND |
| Manganese (Mn) | 3 | 2.7 | ND | ND | ND |
| Zinc (Zn) | 1 | 0.9 | 0.02 | 0.1 | 0.49 |
| Copper (Cu) | 0.5 | 0.45 | ND | ND | ND |
| 1,4-dioxane | 0.25 | 0.15 | ND | ND | ND |
| Fluorine (F) | 1 | 0.6 | ND | ND | ND |
| Boron (B) | 10 | 6 | ND | ND | ND |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | 0.1 | 0.08 | 0.001 |
| Heating furnace | 0.1 | 0.08 | <0.002 | |
| SOx | Boiler | 7.59 | 6.83 | ― |
| Heating furnace | 7.59 | 6.83 | <0.05 | |
| NOx | Boiler | ― | ― | ― |
| Heating furnace | 130 | 130 | 82 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| N,N-dicyclohexylamine | 1,400 | 0 | 0 | 0 | 1,400 |
| Diethanolamine | 2,500 | 0 | 0 | 0 | 2,500 |
| Triisopropanolamine | 3,500 | 0 | 0 | 0 | 3,500 |
| Heptane | 12,000 | 12,000 | 0 | 0 | 0 |
| Sulfide (2,4,4-trimethylpentene) | 1,200 | 0 | 0 | 0 | 1,200 |
Okazaki East Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 5.9~8.5 | 7.0 | 7.3 | 7.6 |
| COD | 10 | 9 | 0.6 | 3.0 | 5.6 |
| BOD | 10 | 9 | ND | 0.8 | 4.7 |
| SS | 10 | 9 | ND | 1.0 | 1.0 |
| Oil content | 2 | 1.8 | ND | 0.5 | 0.6 |
| E. coli | 90 | 80 | ND | ND | ND |
| Total nitrogen (N) | 10 | 9 | 0.6 | 1.3 | 3.8 |
| Total phosphorus (P) | 1 | 0.9 | 0.01 | 0.06 | 0.17 |
| Iron (Fe) | 3 | 2.7 | ND | ND | ND |
| Manganese (Mn) | 3 | 2.7 | ND | ND | ND |
| Zinc (Zn) | 1 | 0.9 | 0.01 | 0.03 | 0.05 |
| Copper (Cu) | 0.5 | 0.45 | ND | ND | ND |
| 1,4-dioxane | 0.25 | 0.15 | ND | ND | ND |
| Fluorine (F) | 1 | 0.6 | ND | ND | ND |
| Boron (B) | 10 | 6 | ND | ND | ND |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | 0.1 | 0.08 | 0.003 |
| Heating furnace | 0.1 | 0.08 | <0.002 | |
| SOx | Boiler | 7.59 | 6.1 | ― |
| Heating furnace | 7.59 | 6.1 | <0.09 | |
| NOx | Boiler | ― | ― | ― |
| Heating furnace | 150 | 150 | 100 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| N,N-dicyclohexylamine | 2,200 | 0 | 0 | 0 | 2,200 |
| Styrene | 4,300 | 3,200 | 0 | 0 | 1,100 |
| Diethanolamine | 1,800 | 0 | 0 | 0 | 1,800 |
| Heptane | 11,000 | 11,000 | 0 | 0 | 0 |
| Sulfide (2,4,4-trimethylpentene) | 3,800 | 0 | 0 | 0 | 3,800 |
Gamagori Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 5.9~8.5 | 6.4 | 7.2 | 7.9 |
| COD | ― | 22.5{18} | 1.0 | 1.6 | 3.6 |
| BOD | 25{20} | 22.5{18} | ND | 0.7 | 2.0 |
| SS | 30{20} | 27{18} | ND | ND | ND |
| Oil content | 2 | 1.8 | ND | ND | ND |
| E. coli | 800 | 720 | ND | ND | ND |
| Total nitrogen (N) | 120{60} | 108{54} | 0.7 | 2.9 | 5.5 |
| Total phosphorus (P) | 16{8} | 14.4{7.2} | ND | 0.03 | 0.05 |
| Iron (Fe) | 10 | 9 | ND | ND | ND |
| Manganese (Mn) | 10 | 9 | ND | 0.1 | 0.2 |
| Zinc (Zn) | 2 | 1.8 | 0.01 | 0.03 | 0.07 |
| Copper (Cu) | 1 | 0.9 | ND | ND | ND |
| 1,4-dioxane | 0.5 | 0.3 | ND | ND | ND |
| Fluorine (F) | 3 | 8 | ND | ND | ND |
| Boron (B) | 10 | 6 | ND | ND | ND |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | 0.3 | 0.24 | <0.002 |
| Water heaters and coolers | 0.3 | 0.24 | <0.002 | |
| SOx | Boiler | 7.59 | 6.83 | ― |
| Water heaters and coolers | 7.59 | 6.83 | ― | |
| NOx | Boiler | ― | ― | ― |
| Water heaters and coolers | 144 | 130 | 84 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Methylnaphthalene | 2,800 | 0 | 0 | 0 | 0 |
Kira Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 5.9~8.5 | 7.1 | 7.5 | 8.1 |
| COD | 10 | 9 | ND | 0.9 | 2.3 |
| BOD | 10 | 9 | ND | 0.6 | 1.1 |
| SS | 10 | 9 | ND | ND | ND |
| Oil content | 2 | 1.8 | ND | ND | ND |
| E. coli | 300 | 270 | ND | ND | ND |
| Total nitrogen (N) | 10 | 9 | 0.7 | 2.1 | 3.5 |
| Total phosphorus (P) | 1 | 0.9 | 0.01 | 0.07 | 0.17 |
| Iron (Fe) | 3 | 2.7 | ND | ND | ND |
| Manganese (Mn) | 3 | 2.7 | ND | ND | ND |
| Zinc (Zn) | 1 | 0.9 | ND | 0.02 | 0.15 |
| Copper (Cu) | 0.5 | 0.45 | ND | ND | ND |
| 1,4-dioxane | 0.5 | 0.3 | ND | ND | ND |
| Fluorine (F) | 5 | 3 | ND | ND | ND |
| Boron (B) | 10 | 6 | ND | ND | ND |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | ― | ― | 0.0052 |
| SOx | 3 | 2.4 | 0.064 | |
| NOx | ― | ― | 89 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Triisopropanolamine | 3,200 | 0 | 0 | 0 | 3,200 |
| Heptane | 1,100 | 1,100 | 0 | 0 | 0 |
Shiroyama Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 5.9~8.5 | 6.6 | 6.8 | 7.1 |
| COD | 10 | 9 | 0.6 | 1.8 | 3.1 |
| BOD | 10 | 9 | ND | 0.7 | 1.4 |
| SS | 10 | 9 | ND | ND | ND |
| Oil content | 2 | 1.8 | ND | ND | ND |
| E. coli | 100 | 90 | ND | ND | ND |
| Total nitrogen (N) | 10 | 9 | 0.8 | 1.5 | 2.5 |
| Total phosphorus (P) | 1 | 0.9 | ND | 0.03 | 0.09 |
| Iron (Fe) | 3 | 2.7 | ND | ND | ND |
| Manganese (Mn) | 3 | 2.7 | ND | 0.1 | 0.2 |
| Zinc (Zn) | 1 | 0.9 | ND | 0.01 | 0.02 |
| Copper (Cu) | 0.5 | 0.45 | ND | ND | ND |
| 1,4-dioxane | 0.5 | 0.3 | ND | ND | ND |
| Fluorine (F) | 5 | 3 | ND | ND | ND |
| Boron (B) | 10 | 6 | 1.6 | 2.6 | 4.9 |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | ― | ― | 0.02 |
| Heating furnace | 0.2 | 0.15 | <0.002 | |
| SOx | Boiler | 3 | 2.4 | 0.17 |
| Heating furnace | 3 | 2.4 | <0.03 | |
| NOx | Boiler | ― | ― | 100 |
| Heating furnace | 180 | 180 | 72 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| Methylnaphthalene | 3,100 | 0 | 0 | 0 | 0 |
| Diethanolamine | 1,200 | 0 | 0 | 0 | 1,200 |
Tahara Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 6.0~8.5 | 6.1~8.4 | 6.8 | 7.2 | 7.6 |
| COD | 20 | 18{13.5} | 1.8 | 4.4 | 7.9 |
| BOD | 20 | 18 | ND | 0.5 | 1.2 |
| SS | 20{15} | 18{13.5} | ND | 1.0 | 2.0 |
| Oil content | 1 | 0.9 | ND | ND | ND |
| E. coli | 800 | 720 | ND | ND | ND |
| Total nitrogen (N) | 120{60} | 108{54} | ND | 1.2 | 2.3 |
| Total phosphorus (P) | 16{8} | 14.4{7.2} | ND | 0.15 | 0.74 |
| Iron (Fe) | 5 | 4.5 | ND | 0.1 | 0.1 |
| Manganese (Mn) | 5 | 4.5 | ND | ND | ND |
| Zinc (Zn) | 1 | 0.9 | 0.05 | 0.08 | 0.12 |
| Copper (Cu) | 0.5 | 0.45 | ND | ND | ND |
| 1,4-dioxane | 0.5 | 0.3 | ND | 0.002 | 0.002 |
| Fluorine (F) | 7 | 4.2 | ND | ND | ND |
| Boron (B) | 230 | 138 | 0.2 | 0.4 | 0.8 |
Atmosphere
| Assessed factor | Equipment | Regulatory limit | Aisin standard | Measured value |
|---|---|---|---|---|
| Particulates | Boiler | 0.2 | 0.16 | <0.001 |
| Water heaters and coolers | 0.2 | 0.16 | 0.001 | |
| Melting furnace | 0.2 | 0.16 | 0.0059 | |
| Melting furnace (ordinance) | 0.4 | 0.16 | 0.0021 | |
| Heating furnace | 0.1 | 0.08 | <0.002 | |
| SOx | Boiler | 8.76 | 7 | <0.01 |
| Water heaters and coolers | 8.76 | 7 | 0.16 | |
| Melting furnace | 8.76 | 7 | <0.02 | |
| Heating furnace | 8.76 | 7 | <0.3 | |
| NOx | Boiler | 160 | 128 | 35 |
| Water heaters and coolers | 160 | 128 | 82 | |
| Melting furnace | 180 | 144 | 42 | |
| Melting furnace (ordinance) | ― | 144 | 65 | |
| Heating furnace | 150 | 150 | 140 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| N,N-dicyclohexylamine | 3,400 | 0 | 0 | 0 | 3,400 |
| Styrene | 15,000 | 14,000 | 0 | 0 | 1,700 |
| Boron compounds | 1,000 | 0 | 140 | 0 | 870 |
| Chlorinated straight-chain paraffins | 7,200 | 0 | 0 | 0 | 7,200 |
| Diethanolamine | 1,200 | 0 | 0 | 0 | 1,200 |
| Triisopropanolamine | 1,100 | 0 | 0 | 0 | 1,100 |
| Heptane | 9,900 | 9,900 | 0 | 0 | 0 |
| Sulfide (2,4,4-trimethylpentene) | 1,200 | 0 | 0 | 0 | 1,200 |
| Dioxins | ― | 1.9 | 0 | 0 | 0 |
Fujioka Plant
Water quality
| Assessed factor | Regulatory limit | Aisin standard | Measured value | ||
|---|---|---|---|---|---|
| Minimum | Average | Maximum | |||
| pH | 5.8~8.6 | 6.0~8.4 | 6.7 | 7.3 | 7.9 |
| COD | 160{120} | 38.3 | 2.7 | 7.4 | 20 |
| BOD | 20 | 16 | 0.5 | 1.5 | 6 |
| SS | 20 | 16 | 1 | 2.7 | 6.0 |
| Oil content | 5 | 2 | ND | 0.6 | 0.6 |
| E. coli | 800 | 720 | ND | ND | ND |
| Total nitrogen (N) | 60{40} | 32 | 0.57 | 8.9 | 22 |
| Total phosphorus (P) | 8{5} | 3.5 | 0.04 | 0.35 | 1.7 |
| Iron (Fe) | 10 | 2 | ND | ND | ND |
| Manganese (Mn) | 10 | 5 | ND | ND | ND |
| Zinc (Zn) | 1 | 1 | 0.02 | 0.08 | 0.16 |
| Copper (Cu) | 3 | 0.2 | ND | ND | ND |
| 1,4-dioxane | 0.05 | 0.05 | ND | ND | ND |
| Fluorine (F) | 0.8 | 0.8 | ND | ND | ND |
| Boron (B) | 1 | 1 | ND | 0.1 | 0.1 |
PRTR act handling volume and discharge/transfer volume
| Chemical substance | Amount handled | Amount released | Amount transferred | ||
|---|---|---|---|---|---|
| To the atmosphere | To public waterways | To sewers | Elsewhere | ||
| 2-Aminoethanol | 11,000 | 0 | 0 | 0 | 1,300 |
| Antimony and its compounds | 95,000 | 0 | 0 | 0 | 7,400 |
| Ethylbenzene | 72,000 | 410 | 0 | 0 | 1,200 |
| Xylene | 73,000 | 360 | 0 | 0 | 1,200 |
| Cresol | 6,200 | 31 | 0 | 0 | 62 |
| Diuron | 17,000 | 0 | 0 | 0 | 170 |
| Hexamethylene tetramine |
79,000 | 0 | 0 | 0 | 310 |
| Triethylamine | 27,000 | 130 | 0 | 0 | 400 |
| Toluene | 210,000 | 3,000 | 0 | 0 | 4,200 |
| Phenol | 69,000 | 5,400 | 0 | 0 | 630 |
| Boron compounds | 1,200 | 0 | 0 | 0 | 17 |
| Formaldehyde | 1,400 | 55 | 0 | 0 | 15 |
| Molybdenum and its compounds | 16,000 | 0 | 0 | 0 | 1,200 |
| Butyl cellosolve | 380,000 | 18 | 0 | 0 | 24,000 |
| Trimethylbenzene | 5,500 | 330 | 0 | 0 | 91 |
7th Aisin Consolidated Environmental Action Plan (5-Year Results)
We have formulated a 7th edition of our AISIN Consolidated Environmental Action Plan, a five-year environmental action guideline and plan covering FY2022 through FY2026 that aims to realize “To the future, a sustainable environment” and build a society in harmony with nature where everyone can live with peace of mind in harmony with nature where everyone can live with peace of mind. By taking on these goals and initiatives and steadily working toward achieving them, we are connecting our environment with a sustainable future.
Building a decarbonized society
2050 vision
Aiming for carbon neutrality
| Broad initiatives | Implementation items & goals | Results | Score | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (1) Life cycle CO2 reduction |
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Established priority categories and promoted roadmap creation and item prioritization/reduction activities within each working group Achieved SBTi certification for greenhouse gas emission targets (FY2024) |
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(2) Reducing CO2 emissions through product design |
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Established Life Cycle Assessment (LCA) rules in the design phase and rolled out to group companies Cut emissions through higher efficiency, lighter weight, and other measures for 44 products under development for clean energy vehicles, spanning powertrain, body, energy system, piston, and brake products |
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(3) Reduction of CO2 emissions from manufacturing |
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Promoted energy conservation globally Implemented CN promotion activities at production bases and group companies [Consolidated result] Reduction: 39% |
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(4) Introduction of renewable energy to the manufacturing process |
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Developed and followed roadmaps tailored to regional characteristics [Consolidated result] Adoption: 35.9% |
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(5) CO2 emission reduction in logistics |
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Improve loading rates and enhance transport efficiency through intra-group transportation [Domestic result] Reduction: 13.7% |
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Building a recycling-oriented society
2050 vision
Minimizing environmental impact by maximizing resource efficiency
| Broad initiatives | Implementation items & goals | Results | Score | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
(6) Raising resource efficiency: product design, product & technology development |
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Reducing the use of materials through product lightweighting and miniaturization Promoting recycling via use of volume reduction equipment Implementing waste oil reuse and resin waste recycling in collaboration with suppliers Using recyclable dummy products Established technologies for removing foreign object from waste materials |
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(7) Reducing resource inputs and waste discharge in production |
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Reducing emissions by fully utilizing resources within the group Add value through material separation and recycling Horizontal expansion of CE-reduction examples [Domestic result] Reduction: 37% [Overseas result] Reduction: 70% |
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(8) Contributing to building a resource circulation system for society as a whole |
|
Introduce consolidated shipping across six sites at three companies in the Mikawa region, maximizing loading efficiency through consolidated shipping Promoted reduction in packaging material usage by implementing returnable pallets for finished automatic transmission products destined overseas and improving packaging configurations |
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(9) Improving water resource efficiency in production |
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Completed global rollout of measurement guidelines and reduction case studies to 140 group companies [Consolidated result] Reduction rate: 17.4% [Result in High-risk sites] Achieved 12.5% reduction by addressing leak points, optimizing dilution, and operating intermittently. Note: following a site relocation, no site currently qualifies as high-risk |
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(10) Contributions to regional water resource conservation, etc. |
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Continue implementation of hydrobiological surveys of the Nishio-Chosen River and the Okazaki Higashi Aoki River Continue implementation of eight annual cleanup activities in areas surrounding factories Nine instances of exceeding legal regulations and agreed-upon values |
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(11) Improving water resource environments through collaboration with suppliers |
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Conducted hydrological risk surveys for suppliers (partner companies) Held study sessions to enhance understanding of the impact of hydrological risk on each company |
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Building a nature-harmonized society
2050 vision
Aiming for harmony with nature and local ecosystems worldwide
| Broad initiatives | Implementation items & goals | Results | Score | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
(12) Reducing harm to biodiversity |
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Assessed and analyzed nature-related issues in line with the TNFD recommendations and began disclosure in FY2024 Reviewed the AISIN Group's policy for activities toward harmony with nature and completed the revision of the guidelines |
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(13) Biodiversity conservation at company locations |
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A cumulative total of eight sites were certified as “Factories that harmonize with nature” based on the AISIN Group's definition Three sites certified as “Sustainably Managed Natural Sites” by the Ministry of the Environment (areas where biodiversity conservation is being promoted) |
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(14) Contributing to the conservation and enhancement of local biodiversity |
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Implemented a total of 18 projects globally |
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Foundational, cross-thematic activities
2050 vision
Aiming to advance the environmental management system
| Broad initiatives | Implementation items & goals | Results (Projected as of Jan 2026) |
Score |
|---|---|---|---|
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(15) Reducing environmental impact substances in production activities |
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Completed implementation of new system for compliance purposes Continued to reduce waste and evaluate alternative materials and products. The transition process is ongoing |
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(16) Managing environmental affairs at the global Group level while strengthening our foundation for environmental action |
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nitiating transition to unified certification across domestic group companies and affiliates to EMS enhancement Promoting adoption and improvement through Aisin Global Environmental Standards (AGES) training Raising environmental awareness using the Seven Cardinal Rules for Protecting the Global Environment |
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| (17) Supply chain management |
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Revised Green Procurement Guidelines Completed establishment of information gathering system Conducted supplier environmental inspections |
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(18) Environmental communication and stakeholder engagement |
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Conducted a total of 25 biodiversity conservation activities across five domestic locations (Hokkaido, Tohoku, Hokuriku, Mikawa, Kyushu). |
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Third Party Verification
