Environment

Material Flow

Conservation of Biodiversity

Environmental Management

Environmental Management

In addition to complying with environment-related laws, regulations, agreements, and voluntary management standards, YKK AP is working to clarify risks and opportunities in its business and strengthen global environmental management by the senior leadership.
In addition, the YKK AP Group (Japan) operates an integrated company-wide ISO 14001 system to ensure structured operation of its environmental management system. Each of our overseas business sites has acquired and is implementing ISO 14001 Certification, and all employees are united in their efforts to promote environmental management.

YKK AP Environmental Management Policy (FY2025 to FY2028)

Contributing to the Global Environment through Environmental Value Creation ~ Towards Achieving Carbon Neutrality ~

YKK AP contributes to the realization of rich lives for current and future generations and to the global environment by reducing environmental impact and creating environmental value.

  • We will work to develop technologies and reduce the environmental impact in order to realize a decarbonized, recycling-oriented society.
  • We address climate change, resource circulation, water conservation, and biodiversity throughout the entire life cycle.
  • Based on a diverse workforce, we will work to create new environmental value with an eye to the future.

Environmental Promotion System

As part of our environment-friendly practices, the YKK AP Environmental Policy Board Committee, chaired by the president, formulates and approves management policies and strategies regarding climate change and other environmental policies from a management perspective, and confirms the progress thereof. The YKK AP Environment Committee implements these environmental management policies and strategies in sales, development, technology, manufacturing, supply, administration, and overseas divisions, and confirms their implementation status through internal environmental audits among divisions.

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YKK AP Environmental Policy Board Committee

Carbon Neutral Project Highlights

In June 2021, we launched the "Carbon Neutral Project." With the head of the Manufacturing Division as project leader, seven working groups were established with the participation of young engineers. Each working group has been working on its respective initiatives, and a carbon neutral technology roadmap has been developed. Aiming to achieve, relative to FY2013, an 80% reduction in Scopes 1 and 2 and a 30% reduction in Scope 3 by FY2030, we will strengthen technological development aimed at carbon neutrality while reviewing our products, manufacturing, and platforms.

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Carbon Neutral Project Highlights

Environmental Targets

YKK AP sets environmental targets for each medium term based on "How We Ought To Be" for 2050 and Environmental Management Policy.
Under the 7th Mid-Term Environmental Business Plan (FY2025–FY2028), we are working toward "How We Ought To Be" for 2050 by backcasting our targets for 2030, and then setting mid-term achievement targets to be achieved in FY2028, on the basis of which we will set numerical targets and action plans for each fiscal year.

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Environmental Issues and Initiatives

*1 Proportion of aluminum raw materials supplied from company-internal scrap materials and market-obtained recycled materials

*2 Rate of internal reuse of internally generated vinyl scraps

Performance Against Environmental Targets (Single Fiscal Year)

*Achievement Levels—◎:Exceeded Plan, ○:Achieved as Planned, △:Partially Achieved (>90%) , ✕:Not Achieved

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Theme Indicators FY2024
Plan Results Degree of
Progress
Environmental Compliance Pollution and Environmental Incidents*2 0 0
Green Talent Environmental Training Participation Rate*1 100% 100%
SDGs Action Participation Rate*1 Over 98% Summer 99%・
Winter 98%
Environmental
Issues
Climate Change Contributions to CO2 Reductions during Product Use*1 1,012 kt CO2
(216% vs FY2020)
821 kt CO2
(175% vs FY2020)
×
YKK AP CO2 Emissions*2 275 kt CO2
(-36% vs FY2013)
271 kt CO2
(-37% vs FY2013)
Energy Use per Unit of Intensity*1 -4.3% vs FY2024 -1.1% vs FY2024
Resource Recycling Waste Emissions*3 17.0 kt
(-17% vs FY2016)
18.7 kt
(-9% vs FY2016)
×
Waste Emissions per Unit of Intensity*3 -48% vs FY2016 -33% vs FY2016 ×
Waste Recycling Rate*3 99% 98%
Water Conservation Water Use*3 8.2 million m3
(-35 % vs FY2013)
8.1 million m3
(-35 % vs FY2013)
Water Use per Unit of Intensity*3 -55% vs FY2013 -54% vs FY2013
Biodiversity Number of Social Contribution Activities*2 At least Two per Location Total: 217

*1 YKK AP Group (Japan)
*2 YKK AP Group (Japan and Overseas)
*3 YKK AP Group (Japan and Overseas Manufacturing Sites)

Details of SBTi-Certified Targets

Science Based Targets (SBT) is an international initiative that provides a mechanism for companies to set long-term CO2 reduction targets consistent with the 2℃ target established by the Paris Agreement.
YKK AP obtained certification from the SBT initiative in January 2019. The CO2 reduction target established in FY2017 was to reduce Scope 1+2 emissions by 30% by 2030 (vs FY2013 levels), but in response to the prospect of achieving this target ahead of schedule in FY2020, the target has been revised to a 50% reduction by 2030 (vs FY2013 levels).

FY2030 Greenhouse Gas Reduction Targets (Relative to FY2013)

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  Established FY2017
(SBTi-Certified in January 2019)
Established FY2020
(SBTi-Certified in February 2021)
YKK AP CO2 Emissions
Scopes 1*1+ 2*2
30% Reduction 50% Reduction
CO2 Emissions in the Supply Chain
Scope 3*3
30% Reduction 30% Reduction
(No Change)

*1 Direct emissions from burning fuel at YKK AP
*2 Indirect emissions from the use of electricity at YKK AP
*3 Indirect emissions across the entire supply chain (emissions other than Scope 1 and Scope 2)

To achieve these targets, we will implement long-term measures focused on energy conservation of 1.3% or more per year, fuel conversion, and the introduction of renewable energy. Through these efforts, we will reduce Scope 1+2 emissions by 80% by 2030 and aim to achieve carbon neutrality ahead of schedule by 2040.

Environmental Management System Accreditation

In March 2025, the YKK AP Group (Japan) underwent a periodic audit by an external review organization using the 2015 edition of ISO 14001.
The results showed the environmental management system to be functioning effectively as an environmental management tool. Eleven of our overseas business sites have obtained ISO 14001 certification.

Percentage of Companies Certified to ISO 14001 Environmental Management Standards

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  FY2021 FY2022 FY2023 FY2024
Manufacturing 80% 80% 82% 82%
Sales, Other 38% 38% 31% 31%
Total 57% 57% 52% 52%

Number of Pollution and Environmental Incidents

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  FY2021 FY2022 FY2023 FY2024
Number of Pollution and Environmental Incidents 0 0 0 0

Data from YKK AP Group (Japan and Overseas)

Third-Party Verification

YKK AP has obtained certification of its greenhouse gas emissions (Scope 1, Scope 2, and Scope 3 Category 1) and renewable energy usage from SGS Japan in order to enhance the reliability and transparency of this information.

Percentage of Employees who have Received Training on Environmental Issues

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  FY2021 FY2022 FY2023 FY2024
Environmental Training Participation Rate 100% 100% 100% 100%
Environmental Activities (SDGs Action) Participation Rate 98% 99% 99% 99%

Data from YKK AP Group (Japan)

Percentage of Business Sites where Environmental Risk Assessments have been Conducted

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  FY2021 FY2022 FY2023 FY2024
Manufacturing Sites Japan 100% 100% 100% 96%
Overseas 58% 58% 67% 62%
Overall 86% 86% 89% 84%
Number of Companies Japan 57% 57% 57% 40%
Overseas 53% 50% 53% 48%
Overall 54% 52% 54% 45%

YKK AP’s Major Manufacturing Sites in Japan and Overseas (Site Data)

YKK APʼs manufacturing sites, located mainly in Tohoku, Kurobe, Namerikawa, Shikoku, and Kyushu in Japan, and in North America, China, and other parts of Asia overseas, develop, manufacture, and sell products tailored to the needs of each region and country.

YKK AP’s Manufacturing Sites in Japan

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  Product Category Premise Area CO2 Emissions Water Use Final Disposal
of Industrial
Waste*1
Emissions of Chemical
Substances*2
Tohoku Plant
(Osaki-shi, Miyagi)
Residential Architectural
Products, Commercial
Architectural Products
745,200 m2 37,409
t CO2
1.362
million m3
0 t 4 t
Saitama MADO(Window)
Plant (Kuki-shi, Saitama)
Windows, Insulating Glass 86,716 m2 0
t CO2
0.046
million m3
0 t 0 t
Kurobe Plant
(Kurobe-shi, Toyama)
Architectural Products 301,000 m2 64,370
t CO2
3.454
million m3
0 t 35 t
Kurobe Ekko Plant
(Kurobe-shi, Toyama)
Architectural Parts 234,000 m2 7,293
t CO2
0.4
million m3
0 t 0 t
Kurobe Ogyu Plant
(Kurobe-shi, Toyama)
Residential Architectural Products 337,000 m2 7,892
t CO2
0.141
million m3
0 t 0 t
Namerikawa Plant
(Namerikawa-shi, Toyama)
Commercial Architectural
Products, Residential
Architectural Products
667,317 m2 11,430
t CO2
0.366
million m3
0 t 0 t
Shikoku Plant
(Utazu-cho, Ayagawa-gun, Kagawa)
Residential Architectural
Products, Industrial
Profiles
324,300 m2 26,414
t CO2
0.678
million m3
0 t 2 t
Kyushu Plant
(Yatsushiro-shi, Kumamoto)
Residential Architectural
Products, Commercial
Architectural Products,
Industrial Profiles
342,000 m2 27,754
t CO2
0.954
million m3
0 t 5 t

*1 Industrial waste that is sent for landfill disposal, industrial waste that is not recycled as fuel

*2 Indicates emissions of substances subject to PRTR (1 ton or more handled)

YKK AP’s Overseas Manufacturing Sites

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  Areas of Business Premise Area CO2 Emissions Water Use Final Disposal
of Industrial
Waste*
YKK AP AMERICA INC. Dublin Factory Manufacture and Sale of
Aluminum Sashes and Windows for Commercial Buildings
817,052 m2 19,525 t CO2 0.238 million m3 670 t
YKK AP AMERICA INC. Macon Factory Manufacture and Sale of Vinyl
Windows for Residential Use
202,343 m2 2,251 t CO2 0.009 million m3 190 t
ERIE ARCHITECTURAL PRODUCTS INC.
Lakeshore Factory (Canada)
Manufacture and Sale of Vinyl
Windows for Residential Use
57,000 m2 453 t CO2 0.002 million m3 702 t
DALIAN YKK AP CO., LTD. Manufacture and Sale of Vinyl
Architectural Products
60,000 m2 2,490 t CO2 0.012 million m3 7 t
YKK AP(SUZHOU) CO., LTD. Manufacture and Sale of
Aluminum Architectural Products
and Components
396,315 m2 7,362 t CO2 0.109 million m3 196 t
YKK AP CO.,LTD. Shenzhen Factory Manufacture and Sale of
Aluminum Architectural Products
112,152 m2 10,079 t CO2 0.138 million m3 0 t
YKK AP TAIWAN CO., LTD.
Yangmei Factory
Manufacture and Sale of
Aluminum Architectural Products
16,088 m2 925 t CO2 0.013 million m3 37 t
PT YKK AP INDONESIA Manufacture and Sale of
Aluminum Architectural Products
and Aluminum Profiles
182,940 m2 25,313 t CO2 0.078 million m3 0 t
Bhoruka Extrusions Private Limited Manufacture and Sale of
Aluminum Architectural Product-
Related Items
64,742 m2 3,770 t CO2 0.014 million m3 338 t

* Industrial waste that is sent for landfill disposal, waste that is not recycled as fuel

Material Flow

Energy Conservation・Prevention of Global Warming

Energy Use by Type

Energy Use by Type
Energy Use by Type
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  FY2013
(Base Year)
FY2021 FY2022 FY2023 FY2024
Total Electricity 514.15 GWh 472.46 GWh 476.62 GWh 456.69 GWh 450.46 GWh
of Which Renewable Energy 0.38 GWh 10.60 GWh 63.45 GWh 74.47 GWh ★ 91.85 GWh
A Heavy Fuel 12.25 megaliters 9.45 megaliters 9.42 megaliters 9.01 megaliters 8.99 megaliters
C Heavy Fuel 0.05 megaliters 0.35 megaliters 0.45 megaliters 0.36 megaliters 0.39 megaliters
Kerosene 10.95 megaliters 7.91 megaliters 7.51 megaliters 6.98 megaliters 6.56 megaliters
Town Gas 3.463 million m3 4.146 million m3 3.945 million m3 3.728 million m3 4.505 million m3
Natural Gas 7.038 million m3 7.360 million m3 8.265 million m3 8.131 million m3 9.177 million m3
LNG 0.99 kt 1.00 kt 0.98 kt 1.04 kt 0.91 kt
LPG 5.86 kt 6.74 kt 6.71 kt 6.46 kt 6.59 kt
Diesel Oil 0.80 megaliters 1.24 megaliters 1.30 megaliters 1.08 megaliters 0.97 megaliters
Gasoline 0.33 megaliters 0.06 megaliters 0.05 megaliters 0.05 megaliters 0.06 megaliters
Wood - - - 2.33 kt 2.35 kt
Total Energy (Crude Oil Equivalent) 174.30 megaliters 160.64 megaliters 161.41 megaliters 140.77 megaliters 138.38 megaliters
Total Energy Consumption 998 GWh 926 GWh 935 GWh 890 GWh 893 GWh

Data from YKK AP Group (Japan and Overseas)
* Data marked with ★ has received third-party verification

Greenhouse Gas Emissions (Scopes 1 and 2)

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Greenhouse Gas Emissions (Scopes 1 and 2)
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  FY2013
(Base Year)
FY2021 FY2022 FY2023 FY2024
Scope 1: Direct Emissions 107 kt CO2 98 kt CO2 99 kt CO2 93 kt CO2 ★ 95 kt CO2
Scope 2: Emissions from Electricity Used 323 kt CO2 227 kt CO2 205 kt CO2 185 kt CO2 ★ 176 kt CO2
Scopes 1+2 430 kt CO2 325 kt CO2 304 kt CO2 278 kt CO2 271 kt CO2
CO2 Emissions per Unit of Net Sales 107 t CO2/100 million yen 73 t CO2/100 million yen 61 t CO2/100 million yen 52 t CO2/100 million yen 48 t CO2/100 million yen

Data from YKK AP Group (Japan and Overseas)
* Data marked with ★ has received third-party verification

CO2 Emissions from Logistics (Japan)

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CO2 Emissions from Logistics (Japan)

* Calculated based on the calculation method for specified shippers specified in the Act on Rationalization of Energy Use and Shift to Non-Fossil Energy

Energy Use and Energy Use per Unit of Intensity (Manufacturing and Sales Sites in Japan)

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Energy Use and Energy Use per Unit of Intensity (Manufacturing and Sales Sites in Japan)

*1 The crude oil conversion coefficients used are those specified in the Act on Rationalization of Energy Use and Shift to Non-Fossil Energy. FY2023 and earlier are calculated using coefficients from before the revision of the Energy Conservation Act

*2 Energy use per shipment amount

Renewable Energy Ratio

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  FY2021 FY2022 FY2023 FY2024
Renewable Energy Ratio 2.2% 13.3% 16.3% 20.4%

Data from YKK AP Group (Japan and Overseas)
* Percentage of total electricity derived from renewable energy sources

Greenhouse Gas Emissions (Scope 3)

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  FY2013
(Base Year)
FY2021 FY2022 FY2023 FY2024
(Greenhouse Gas Emissions)
Scope 3
2,495 kt CO2 1,932 kt CO2 2,079 kt CO2 1,984 kt CO2 2,021 kt CO2

Data from YKK AP Group (Japan and Overseas)
* Based on the latest CO2 emission coefficients, retroactively revised for past years

FY2024 Breakdown of CO2 Emissions from the Entire Supply Chain

FY2024 Breakdown of CO2 Emissions from the Entire Supply Chain

YKK AP Group (Japan and Overseas Manufacturing Sites)

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  Japan Overseas Total
Scope 1: Direct Emissions 72 kt CO2 23 kt CO2 ★ 95 kt CO2
Scope 2: Emissions from Electricity Used 126 kt CO2 50 kt CO2 ★ 176 kt CO2
Scope 3 Purchased Goods and Services 1,060 kt CO2 555 kt CO2 ★ 1,615 kt CO2
Capital Goods 184 kt CO2 21 kt CO2 205 kt CO2
Fuel-and Energy-Related Activities
not Included in Scope 1 or Scope 2
62 kt CO2 16 kt CO2 78 kt CO2
Upstream Transportation and Distribution 42 kt CO2 16 kt CO2 59 kt CO2
Waste Generated in Operations 1 kt CO2 1 kt CO2 2 kt CO2
Business Travel 5 kt CO2 0 kt CO2 5 kt CO2
Employee Commuting 14 kt CO2 1 kt CO2 15 kt CO2
Upstream Leased Assets 0 kt CO2 0 kt CO2 0 kt CO2
Downstream Transportation and Distribution 1 kt CO2 8 kt CO2 9 kt CO2
Processing of Sold Products 14 kt CO2 2 kt CO2 16 kt CO2
Use of Sold Products 0 kt CO2 0 kt CO2 0 kt CO2
End-of-Life Treatment of Sold Products 16 kt CO2 2 kt CO2 18 kt CO2
Downstream Leased Assets 0 kt CO2 0 kt CO2 0 kt CO2
Franchises 0 kt CO2 0 kt CO2 0 kt CO2
Investments 0 kt CO2 0 kt CO2 0 kt CO2
Scope 3 Total 1,398 kt CO2 623 kt CO2 2,021 kt CO2
Scope 1, 2, and 3 Total 1,596 kt CO2 696 kt CO2 2,291 kt CO2

Data from YKK AP Group (Japan and Overseas)

* Data marked with ★ has received third-party verification

Environmentally Conscious Investment Policy and Results

In order to contribute to a sustainable society through our products and monozukuri, YKK AP is actively investing in the development of sustainable products and initiatives to reduce the burden on the global environment, such as reducing CO2 emissions and recycling. At the same time, we will clarify cost-effectiveness and explain our results to stakeholders.

FY2024 Environmental Accounting Results

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  FY2021 FY2022 FY2023 FY2024
Capital
Investments
Expenses Capital
Investments
Expenses Capital
Investments
Expenses Capital
Investments
Expenses
Costs within Business
Areas / Pollution
Prevention Costs /
Wastewater Treatment
Equipment Operation
and Administration Costs
234 million yen/year 721 million yen/year 138 million yen/year 741 million yen/year 188 million yen/year 767 million yen/year 89 million yen/year 775 million yen/year
Costs within Business
Areas / Global
Environmental
Conservation Costs /
Introduction of Waste
Heat Recovery Equipment
and High Efficiency
Lighting Equipment
540 million yen/year 217 million yen/year 1,635 million yen/year 326 million yen/year 2,611 million yen/year 341 million yen/year 1,627 million yen/year 384 million yen/year
Costs within Business
Areas / Resource Recycling
Costs / Promotion of
Recycling and Waste
Volume Reduction
986 million yen/year 468 million yen/year 64 million yen/year 441 million yen/year 132 million yen/year 489 million yen/year 248 million yen/year 501 million yen/year

YKK AP Group (Japan)

Resource Conservation・Recycling

Waste Emissions and Recycling

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  FY2016
(Base Year)
FY2021 FY2022 FY2023 FY2024
Waste Emissions 20.5 kt 15.9 kt 15.4 kt 17.4 kt 18.7 kt
Waste Emissions per Unit of Net Sales* 4.95 t/
100 million yen
(100)
3.57 t/
100 million yen
(72)
3.03 t/
100 million yen
(61)
3.23 t/
100 million yen
(65)
3.34 t/
100 million yen
(67)
Amount of Landfill Disposal 3.0 kt 1.2 kt 1.3 kt 1.8 kt 2.1 kt
Amount of Valuable Resources +
Amount of Waste Recycled
87.9 kt 95.2 kt 100.2 kt 95.0 kt 92.5 kt
Waste Recycling Rate 97% 99% 99% 98% 98%

Data from YKK AP Group (Japan and Overseas Manufacturing Sites)
* Figures in parentheses indicate a relative amount to the base year, FY2016, which is set at 100

Aluminum Recycling

Because the smelting of new aluminum ingots requires a great deal of electricity and generates a large amount of CO2 emissions, improving the recycling rate will contribute to achieving carbon neutrality.
As an initiative in this regard, introducing recycling furnaces will greatly increase the input rate of market-obtained recycled materials, thereby reducing the rate of new ingots used, which leads to significantly reducing CO2 emissions across the entire supply chain.
Starting with introducing a recycling furnace at the Shikoku Plant, we plan to expand this initiative to other sites, and will step up efforts to achieve a 100% recycling rate by 2030.
In addition to improving the recycling rate, we are also working to further cut CO2 emissions by promoting the procurement of "green aluminum," which is smelted from bauxite using renewable energy.

Vinyl Recycle

During the manufacturing process for vinyl frame materials and vinyl windows, we strive to minimize the generation of vinyl scraps and chips through efficient production. By reclaiming scraps and chips generated from the production process as vinyl materials, we are working to improve the rate at which they are recycled. We are also actively developing new applications for vinyl scraps. We are also engaged in industry-government-academia collaboration to establish a system to collect and recycle vinyl windows once they have been used.

Approach to Water Resources

YKK AP undertakes initiatives to achieve sustainable water use by reducing the amount of water withdrawn and the environmental impact of wastewater discharge through the recycling and reuse of water in the production process.

Water Use (Water Withdrawal), Wastewater Discharge Volume, Reuse and Reclamation Volume

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  FY2013
(Base Year)
FY2021 FY2022 FY2023 FY2024
Water Use (Water Withdrawal)*1 12.575 million m3 9.840 million m3 8.894 million m3 8.285 million m3 8.138 million m3
Water Use per Unit of Net Sales*2 3,121 m3/
100 million yen
(100)
2,205 m3/
100 million yen
(71)
1,749 m3/
100 million yen
(56)
1,538 m3/
100 million yen
(49)
1,449 m3/
100 million yen
(46)
Wastewater Discharge*3 11.457 million m3 8.447 million m3 6.293 million m3 5.878 million m3 5.961 million m3
Reuse and Reclamation Volume*1 0.053 million m3 0.038 million m3 0.041 million m3 0.060 million m3 0.056 million m3

*1 Data from YKK AP Group (Japan and Overseas Manufacturing Sites)

*2 Data from YKK AP Group (Japan and Overseas Manufacturing Sites) . *Figures in parentheses represent an index relative to the base year, FY2013, which is set at 100

*3 Data from YKK AP Group (Japan Manufacturing Sites)

Pollution Prevention

PRTR Substances, Air Pollutants

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  FY2021 FY2022 FY2023 FY2024
(PRTR Substances) Volume Handled*1 1,046 t 985 t 1,025 t 994 t
(PRTR Substances) Emissions*1 54 t 52 t 83 t 80 t
(PRTR Substances) Transfer Amount to Sewer System*1 12 t 13 t 21 t 26 t
(Air Pollutants) SOx*2 9 t 7 t 11 t 11 t
(Air Pollutants) NOx*2 54 t 51 t 61 t 58 t
(Air Pollutants) VOC*2 29 t 29 t 27 t 26 t

*1 Data from YKK AP (Non-Consolidated)

*2 Data from YKK AP Group (Japan and Overseas Manufacturing Sites)

Pollutants Discharged into Water

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  FY2021 FY2022 FY2023 FY2024
Total Weight of Pollutants Discharged into Water* 44 t 34 t 37 t 31 t

YKK AP Group (Japan Manufacturing Sites)

* COD, BOD Emission
  BOD: Biochemical Oxygen Demand (Discharge into Rivers)
  COD: Chemical Oxygen Demand (Discharge into Seas)

Conservation of Biodiversity

Basic Approach

Companies derive enormous benefits from ecosystems, including the use of biological resources and land, and the purification of water and air. Loss of biodiversity is said to pose the risk of a serious economic crisis.
YKK APʼs business activities also depend heavily on the abundant resources provided by the earth, and we believe that the conservation of biodiversity is essential for the realization of a sustainable society. We will minimize the impact of our business activities on ecosystems and collaborate with local communities to protect the natural environment.

Contributions to CO2 Reductions through Products

Contributions to CO2 Reductions through High Thermal Insulation Products

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  FY2021 FY2022 FY2023 FY2024
Contributions to CO2 Reductions through High Thermal Insulation Products 561 kt CO2 607 kt CO2 824 kt CO2 832 kt CO2

Data from YKK AP Group (Japan and Overseas)

Sustainable Products

“Sustainable Product” are defined as architectural products that contribute to achieving the SDGs by solving priority social issues such as energy conservation, easy-installation, disaster prevention/mitigation, safety/security, and health/hygiene.

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  FY2021 FY2022 FY2023 FY2024
Rate of “Sustainable Product” Sales 38.4% 37.8% 40.3% 40.4%

Data from YKK AP Group (Japan and Overseas) Based on Net Sales

Rate of Vinyl Window Use

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  FY2021 FY2022 FY2023 FY2024
Rate of Vinyl Window Use (For Single-Family Houses) 31% 31% 35% 39%

Data from YKK AP Group (Japan) Rate of vinyl window use in sales for single family homes

Rate of High Thermal Insulation Window Use

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  FY2021 FY2022 FY2023 FY2024
Rate of High Thermal Insulation Window Use (For Single-Family Houses)*1 70% 75% 79% 88%
Rate of High Thermal Insulation Window Use (For Commercial Buildings)*2 2% 2% 6% 8%

Data from YKK AP Group (Japan)

*1 Rate of vinyl, wood, and aluminum-vinyl composite windows in sales for single family homes

*2 Rate of vinyl, wood, and aluminum-vinyl composite windows in orders received for commercial buildings

Ratio of New Constructions to Remodeling Projects

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  FY2021 FY2022 FY2023 FY2024
Ratio of New Constructions
to Remodeling Projects
Residential New Construction 68% 67% 63% 62%
Remodeling 32% 33% 37% 38%
Commercial New Construction 70% 69% 68% 68%
Remodeling 30% 31% 32% 32%

Data from YKK AP Group (Japan) Based on Net Sales