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Environmental Data

Third-party assurance

To improve the reliability of our environmental data, we undergo third-party verification of greenhouse gas emissions and water resource consumption.

Greenhouse gas emissions

Scope Item Unit FY2020 FY2021 FY2022 FY2023 FY2024
Zeon Group Scope 1 t-CO2e 792,943 759,119 767,005 706,936 788,270
Scope 2 (market-based) t-CO2e 248,185 258,436 196,382 167,836 166,049
Scope 1 + 2 (market-based) t-CO2e 1,041,128 1,017,556 963,387 874,772 954,319
Scope 3 t-CO2e 1,267,139 1,270,425 1,153,078 1,091,948 1,150,152
Category 1: Purchased goods and services t-CO2e 816,318 814,174 744,379 672,760 743,484
Category 2: Capital goods t-CO2e 76,411 67,961 40,771 67,141 36,413
Category 3: Fuel- and energy-related activities not included in Scope 1 or 2 t-CO2e 160,692 160,565 151,240 145,012 160,029
Category 4: Transportation and distribution (upstream) t-CO2e 47,833 57,290 52,551 46,873 50,619
Category 5: Waste generated in operations t-CO2e 13,597 16,073 13,410 13,028 15,325
Category 6: Business travel t-CO2e 278 435 467 3,354 3,369
Category 7: Employee commuting t-CO2e 1,124 1,326 1,419 1,433 1,598
Category 9: Transportation and distribution (downstream) t-CO2e 2,789 ー ー 1,958 2,652
Category 10: Processing of sold products t-CO2e 85,950 93,563 92,013 85,096 80,404
Category 12: End-of-life treatment of sold products t-CO2e 62,147 59,038 56,829 55,294 56,260
Scope 1 + 2 + 3 t-CO2e 2,308,267 2,287,980 2,116,465 1,966,720 2,104,471
Zeon Corporation Scope 1 t-CO2e 760,890 726,775 737,482 684,234 760,028
Scope 2 (market-based) t-CO2e 91,353 81,121 25,472 21,330 13,973
Scope 1 + 2 (market-based) t-CO2e 852,243 807,896 762,954 705,565 774,000
Zeon Group companies in Japan *1 Scope 1 t-CO2e 4,479 4,634 3,821 3,476 3,941
Scope 2 (market-based) t-CO2e 9,138 8,588 6,903 6,909 5,621
Scope 1 + 2 (market-based) t-CO2e 13,616 13,222 10,724 10,386 9,562
Zeon Group companies outside Japan Scope 1 t-CO2e 27,574 27,711 25,702 19,225 24,301
Scope 2 (market-based) t-CO2e 147,694 168,727 164,007 139,596 146,455
Scope 1 + 2 (market-based) t-CO2e 175,269 196,438 189,709 158,822 170,757
  1. *1Consolidated subsidiaries only

Energy consumption

Scope Sub-item Unit FY2020 FY2021 FY2022 FY2023 FY2024
Zeon Corporation Total consumption (crude oil equivalent) kL 215,980 244,612 249,016 290,001 312,644
Total consumption GJ 8,371,318 9,481,085 9,651,783 11,240,349 12,117,980
MWh 2,325,366 2,633,635 2,681,051 3,122,319 3,366,106
Of which non-fossil energy consumption GJ - - 1,219 1,166,183 1,145,897
MWh - - 339 323,940 318,305
Share of non-fossil energy % - - 0.01 10.37 9.46
Zeon Group companies in Japan Total consumption (crude oil equivalent) kL 26,074 4,162 3,920 3,588 3,707
Total consumption GJ 1,010,620 161,318 151,938 139,064 143,689
MWh 280,728 44,811 42,205 38,629 39,914

Prevention of air pollution and emissions of toxic substances

Item Sub-item Scope Unit FY2020 FY2021 FY2022 FY2023 FY2024
Nitrogen oxides (NOx) Emissions Zeon Corporation Ton 258 281 225 278 258
Sulfur oxides (SOx) Emissions Zeon Corporation Ton 579 797 514 738 480
Volatile organic compounds (VOCs) Emissions Zeon Corporation Ton - - - 29.4 28.0
Soot and dust Emissions Zeon Corporation Ton 4.0 7.0 4.0 5.0 4.7
Fluorocarbon leaks Emissions Zeon Corporation t-CO2e 304 446 311 311 86
Toxic substances Butadiene emissions Zeon Corporation Ton 2.7 2.8 2.6 2.2 2.6
Acrylonitrile emissions Ton 3.1 3.3 2.9 1.9 2.2
Substances subject to the PRTR Act Consumption Zeon Corporation Ton 817,455 782,415 790,981 732,606 810,233
Emissions Ton 23.4 23.4 18.5 17.9 18.3
Emissions Zeon Group companies in Japan Ton 4.2 2.2 2.8 3.2 3.1

Waste reduction

Item Sub-item Scope Unit FY2020 FY2021 FY2022 FY2023 FY2024
Industrial waste Amount generated before compacting Zeon Corporation Ton 140,226 140,146 131,606 123,955 138,032
(General) industrial waste generated Ton - - 17,965 17,133 17,383
Hazardous waste generated (specially controlled industrial waste) Ton - - 2,011 2,665 2,580
Amount sent to landfills Ton 0.1 3.8 1.7 56.8 41.6
Recycling volume Ton 19,478 21,367 19,691 19,622 19,629
Industrial waste from plastic products Ton - 1,606 1,362 1,166 892
Amount generated before compacting Zeon Group companies in Japan Ton 2,247 859 957 859 926
Amount sent to landfills Ton 14.3 7.6 2.1 1.4 3.5
Industrial waste from plastic products Ton - 142 150 108 110

Conservation of water resources *2

Item Water source / Discharge destination Scope Unit FY2022 FY2023 FY2024
Water withdrawal Total water withdrawal Zeon Group 1,000 m3 20,262 19,674 20,201
Zeon Corporation 1,000 m3 17,963 17,518 17,850
Zeon Group companies in Japan 1,000 m3 372 424 428
Zeon Group companies outside Japan 1,000 m3 1,927 1,732 1,923
Third-party water sources (tap water) Zeon Group 1,000 m3 19,901 19,325 19,849
Zeon Corporation 1,000 m3 17,963 17,518 17,850
Zeon Group companies in Japan 1,000 m3 177 185 182
Zeon Group companies outside Japan 1,000 m3 1,760 1,622 1,817
Fresh surface water (rivers, lakes, etc.) Zeon Group 1,000 m3 0 0 0
Zeon Corporation 1,000 m3 0 0 0
Zeon Group companies in Japan 1,000 m3 0 0 0
Zeon Group companies outside Japan 1,000 m3 0 0 0
Groundwater Zeon Group 1,000 m3 361 348 353
Zeon Corporation 1,000 m3 0 0 0
Zeon Group companies in Japan 1,000 m3 195 239 247
Zeon Group companies outside Japan 1,000 m3 167 110 106
Produced water Zeon Group 1,000 m3 0 0 0
Zeon Corporation 1,000 m3 0 0 0
Zeon Group companies in Japan 1,000 m3 0 0 0
Zeon Group companies outside Japan 1,000 m3 0 0 0
Seawater Zeon Group 1,000 m3 0 0 0
Zeon Corporation 1,000 m3 0 0 0
Zeon Group companies in Japan 1,000 m3 0 0 0
Zeon Group companies outside Japan 1,000 m3 0 0 0
Wastewater management Total wastewater discharge Zeon Group 1,000 m3 19,529 19,459 19,519
Zeon Corporation 1,000 m3 17,491 17,456 17,486
Zeon Group companies in Japan 1,000 m3 359 409 412
Zeon Group companies outside Japan 1,000 m3 1,678 1,593 1,621
Discharge to third parties (sewerage system)*3 Zeon Group 1,000 m3 1,850 1,779 1,737
Zeon Corporation 1,000 m3 150 167 101
Zeon Group companies in Japan 1,000 m3 21 19 15
Zeon Group companies outside Japan 1,000 m3 1,678 1,593 1,621
Fresh surface water (rivers, lakes, etc.) Zeon Group 1,000 m3 4,184 4,358 4,269
Zeon Corporation 1,000 m3 3,977 4,097 4,008
Zeon Group companies in Japan 1,000 m3 207 261 261
Zeon Group companies outside Japan 1,000 m3 0 0 0
Discharge to groundwater Zeon Group 1,000 m3 0 0 0
Zeon Corporation 1,000 m3 0 0 0
Zeon Group companies in Japan 1,000 m3 0 0 0
Zeon Group companies outside Japan 1,000 m3 0 0 0
Discharge to seawater Zeon Group 1,000 m3 13,495 13,322 13,513
Zeon Corporation 1,000 m3 13,364 13,192 13,377
Zeon Group companies in Japan 1,000 m3 131 130 136
Zeon Group companies outside Japan 1,000 m3 0 0 0
Wastewater management COD emissions Zeon Corporation Ton 110 104 105
Total phosphorus discharge Ton 2.0 2.0 1.7
Total nitrogen discharge Ton 120 92.9 99.1
Water-stressed areas Number of sites Zeon Group Sites 1 1 1
Water withdrawal 1,000 m3 1.5 0.8 0.8
Water discharge 1,000 m3 1.3 0.8 0.7
  1. *2Companies within the scope of consolidation only
  2. *3Overseas sites for which the discharge destination has not been confirmed are included in “Discharge to third parties.”

Environmental Conservation Costs

Category Scope Unit FY2022 FY2023 FY2024
Investment Expense Investment Expense Investment Expense
(1) Business area Total Zeon Corporation million yen 455 3,122 5,585 4,409 1,985 5,550
Pollution prevention million yen 18 2,045 4,413 3,205 1,759 4,350
Global environmental conservation million yen 437 380 1,172 537 226 480
Resource circulation million yen 0 697 0 667 0 720
(2) Upstream / downstream million yen 0 0 0 0 0 0
(3) Administrative million yen 23 144 19 108 20 122
(4) Research and development million yen 165 3,220 790 2,091 369 1,050
(5) Social activity million yen 0 53 0 37 0 49
(6) Environmental remediation million yen 0 81 0 42 0 73
Grand total million yen 644 6,620 6,394 6,686 2,374 6,844

Environmental Violations and Incidents

Item Scope Unit FY2022 FY2023 FY2024
Number of violations of environmental laws and regulations Zeon Corporation Zeon Group companies in Japan cases 0 0 0
Of which: Violations related to water quality and water volume cases 0 0 0
Fines and penalties related to violations of environmental laws and regulations 1,000 yen 0 0 0

Status of Certifications for International Environmental Standards

Item Scope Unit FY2024
Percentage of sites certified to ISO 14001 *4 Zeon Group % 70.4
  1. *4Percentage among manufacturing sites
Organization ISO 14001
Zeon Corporation Takaoka Plant ✔
Kawasaki Plant ✔
Tokuyama Plant ✔
Mizushima Plant ✔
Himi Futagami Plant ✔
Tsuruga Plant ✔
Zeon Kasei Co., Ltd. ✔
Zeon Polymix Inc. ✔
Zeon Opto Bio Lab Co., Ltd. ✔
Tokyo Zairyo Co., Ltd. ✔
Zeon Chemicals Yonezawa Co., Ltd. ✔
Zeon North Co., Ltd. ✔
Zeon Advanced Polymix Co., Ltd. ✔
Zeon Chemicals Asia Co.,Ltd. ✔
Zeon Chemicals (Thailand) Co., Ltd. ✔
Zeon Chemicals L.P. ✔
Zeon Chemicals Singapore Pte. Ltd. ✔
Zeon Polymix (Guangzhou) Co., Ltd. ✔
Zeon Kasei (Changshu) Co., Ltd. ✔

International Sustainability & Carbon Certification

Site ISCC PLUS
Zeon Corporation Takaoka Plant ✔
Kawasaki Plant ✔
Tokuyama Plant ✔
Mizushima Plant ✔
Tokyo Zairyo Co., Ltd. ✔
Zeon Europe GmbH ✔
Zeon Chemicals Singapore Pte. Ltd. ✔
Zeon Asia Pte. Ltd. ✔
Zeon Trading (Shanghai) Co., Ltd. ✔