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Environmental Data

Third-party assurance

To improve the reliability of our environmental data, we undergo third-party verification. (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 248,185 258,436 196,382 167,840 166,054
Scope 1 + 2 (market-based) t-CO2e 1,041,128 1,017,556 963,387 874,777 954,324
Scope 3 t-CO2e 1,432,408 1,576,301 1,405,070 1,313,864 1,409,584
Category 1: Purchased goods and services t-CO2e 978,999 1,117,495 993,741 892,405 1,000,491
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 163,280 163,120 153,870 147,283 162,453
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 2,473,536 2,593,857 2,368,457 2,188,641 2,363,908
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 21,335 13,978
Scope 1 + 2 (market-based) t-CO2e 852,243 807,896 762,954 705,569 774,005
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
Of which non-fossil energy consumption GJ - - 1,219 1,166,183 1,145,897
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

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
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
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

Item Sub-item Scope Unit FY2020 FY2021 FY2022 FY2023 FY2024
Water resources management Total water resource consumption Zeon Corporation 1,000 m3 17,905 17,811 17,961 17,304 17,850
Water used from water systems 1,000 m3 259 412 438 475 466
Groundwater used 1,000 m3 0 0 0 0 0
Industrial water used 1,000 m3 17,646 17,399 17,523 16,830 17,384
Total water resource consumption Zeon Group companies in Japan 1,000 m3 334 215 135 170 165
Wastewater management Total wastewater discharge Zeon Corporation 1,000 m3 15,433 15,258 15,917 14,814 14,541
COD emissions Ton 121 141 110 104 105
Total phosphorus discharge Ton 2.0 2.1 2.0 2.0 1.7
Total nitrogen discharge Ton 133 131 120 92.9 99.1

Status of Certifications for International Environmental Standards

Item Scope Unit FY2024
Percentage of sites certified to ISO 14001 *2 Zeon Corporation and Zeon Group companies in Japan % 63.2
  1. *2Percentage among manufacturing sites
Site ISO 14001
Takaoka Plant ✔
Kawasaki Plant ✔
Tokuyama Plant ✔
Mizushima Plant ✔
Himi Futagami Plant ✔
Tsuruga Plant ✔
Zeon Kasei Co., Ltd.
(Head office divisions including research laboratories)		 ✔
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 (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
Takaoka Plant ✔
Kawasaki Plant ✔
Tokuyama Plant ✔
Mizushima Plant ✔
Zeon Europe GmbH ✔
Zeon Chemicals Singapore Pte. Ltd. ✔

Employee Data

Composition of employees

Item Scope Unit FY2021 FY2022 FY2023 FY2024
Full-time regular employees Men Zeon Corporation persons 1,843 2,062 2,138 2,195
Women persons 274 318 341 351
Total persons 2,117 2,380 2,479 2,546
Percentage of women % 12.9 13.4 13.8 13.8
Average years of employment Men Zeon Corporation years 16.2 13.6 14.3 14.4
Women years 13.1 9.5 10.4 10.8
Total years 15.8 13.1 13.8 13.9
Average age Men Zeon Corporation years 40.2 40.1 40.3 39.8
Women years 37.1 36.6 37.0 37.1
Total years 39.8 39.7 39.9 39.4
No. of non-Japanese employees Zeon Corporation persons 28 32 32 34

Composition of managerial positions

Item Scope Unit FY2021 FY2022 FY2023 FY2024
Female manager ratio Zeon Corporation % 5.2 5.7 6.0 6.4

Hiring and turnover

Item Scope Unit FY2021 FY2022 FY2023 FY2024
New graduate hires Men Zeon Corporation persons 52 78 86 82
Women persons 13 20 21 16
Total persons 65 98 107 98
Percentage of women % 20.0 20.4 19.6 16.3
Mid-career hires Men Zeon Corporation persons 79 195 75 47
Women persons 16 37 20 10
Total persons 95 232 95 57
Percentage of women % 16.8 15.9 21.1 17.5
Total number of hires Men Zeon Corporation persons 131 273 161 129
Women persons 29 57 41 26
Total persons 160 330 202 155
Percentage of women % 18.1 17.3 20.3 16.8
Ratio of mid-career hires % 59..4 70.3 47.0 36.8
Employees leaving voluntarily Men Zeon Corporation persons 23 39 51 68
Women persons 10 8 10 14
Total persons 33 47 61 82
Voluntary turnover rate % 1.9 2.1 2.5 3.2
Ratio of employees with disabilities (Legally required ratio of 2.5%) *1 Zeon Corporation % 2.41 2.58 2.52 2.56
  1. *1The figure for FY2024 is as of June 2024. The legally required ratio until March 2024 was 2.3%.

Work-life balance

Item Scope Unit FY2021 FY2022 FY2023 FY2024
Paid leave utilization rate *2 Zeon Corporation % 54.0 61.0 70.5 75.6
Average monthly overtime hours Zeon Corporation hours 24.2 21.4 16.9 17.1
Paternity leave acquisition ratio Zeon Corporation % 14.0 51.0 92.0 93.6
  1. *2January to December 2024 (due to annual paid leave being granted as of January 1)

Salary

Item Scope Unit FY2021 FY2022 FY2023 FY2024
Average annual salary Zeon Corporation 1,000 yen 7,507 7,324 7,325 7,378
Gender disparity in wages All workers Zeon Corporation % - 74.2 75.3 75.4
Full-time regular workers % - 78.2 79.7 80.9
Part-time and contract workers % - 64.6 66.5 63.5

Occupational Health and Safety Data

Occupational safety

Item Scope Unit FY2021 FY2022 FY2023 FY2024
Lost worktime accidents Employees of Zeon Corporation Zeon Corporation cases 2 0 4 3
Contractors cases 4 3 2 1
Employees of Zeon Group companies Zeon Group companies in Japan cases - - - 0
Contractors cases - - - 0
Fatal accidents Employees of Zeon Corporation Zeon Corporation cases 0 0 0 0
Contractors cases 0 0 0 0
Employees of Zeon Group companies Zeon Group companies in Japan cases 0 0 0 0
Contractors cases 0 0 0 0
Lost worktime accident rate *3 Zeon Corporation rate 0.47 0.36 0.66 1.30
Severity rate of lost worktime accidents *4 Zeon Corporation rate 0.00 0.00 0.05 0.12
No. of participants in safety education (accident case studies) Zeon Corporation persons - - 1,371 1,567
Zeon Group companies in Japan persons - - 26 235
Rate of conducting plant safety evaluations Zeon Corporation % 100 100 100 100
No. of RC audits conducted Zeon Corporation times/site 1 1 1 1
Safety incidents Zeon Corporation cases 7 6 5 8
Zeon Group companies in Japan cases - - - 1
Serious accidents in logistics Zeon Corporation cases 0 0 1 0
Percentage of sites certified to ISO 45001 Zeon Corporation and Zeon Group companies in Japan % 0.0 0.0 0.0 0.0
  1. *3Number of workers who experienced a lost worktime accident / Total working hours × 1,000,000 hours
  2. *4Total number of lost work days / Total actual worked hours × 1,000 hours

Employee health

Item Scope Unit FY2021 FY2022 FY2023 FY2024
Ratio of employees undergoing routine medical checkups Zeon Corporation % 100 100 100 100
Ratio of those taking stress checks Zeon Corporation % 96.0 93.0 92.7 95.8
Ratio of absences due to injury or illness (absenteeism) *5 Zeon Corporation % 0.6 0.7 1.1 1.1
Productivity loss ratio (presenteeism) *6 Zeon Corporation % 40.6 40.3 40.3 39.9
Ratio of participation by eligible for mental health seminars Zeon Corporation % 76.0 88.0 88.0 99.0
Zeon Healthy Behavior Indicator *7 Achieved 2 or more indicators Zeon Corporation % - 60.0 62.0 61.7
Have a BMI within the standard range % - 66.0 67.0 65.5
Engage in routine exercise % - 26.0 26.0 28.3
Do not smoke % - 76.0 76.0 77.1
  1. *5Ratio of total persons absent long term for more than 1 month and persons on leave in the total number of employees
  2. *6Calculated the average loss ratio for all employees using the WHO-HPQ measure of absolute presenteeism
  3. *7Results of regular health checkups conducted between January and June 2024

Status of Certifications for International Quality Standards

Site ISO 9001:2015 *8 ISO 13485:2016 *9 IATF 16949:2016 *10 FSSC 22000 v5 *11
Japan
Zeon Corporation ✔     ✔ *13
Zeon Kasei Co., Ltd. ✔ *12      
Zeon Polymix Inc. ✔      
Zeon Opto Bio Lab Co., Ltd. ✔ ✔    
Tokyo Zairyo Co., Ltd. ✔      
Tohpe Corporation ✔      
Zeon Medical Inc.   ✔    
Zeon North Co., Ltd. ✔      
Zeon Chemicals Yonezawa Co., Ltd. ✔     ✔
Outside Japan
Zeon Chemicals L.P. ✔      
Zeon Chemicals (Thailand) Co., Ltd. ✔      
Zeon Advanced Polymix Co., Ltd. ✔   ✔  
Zeon Chemicals Singapore Pte. Ltd. ✔      
Zeon Europe GmbH ✔      
Zeon Chemicals Asia Co., Ltd. ✔      
Zeon Kasei (Changshu) Co., Ltd.     ✔  
Zeon Kasei Mexico S.A. de C.V. ✔      
  1. *8ISO 9001 is the international standard for achieving ongoing improvements in enhancing customer satisfaction and quality management systems through product and services quality assurance.
  2. *9ISO 13485 is the global standard for quality management systems in the field of medical devices for the purpose of continued manufacture and provision of safe and useful medical devices. The standard has added requirements specific to medical devices while omitting some of the ISO 9001 requirements.
  3. *10IATF 16949 is a standard issued by the International Automotive Task Force (IATF) for the automobile industry sector, and which is intended as a supplement to the requirements of ISO 9001 for automobile manufacturers.
  4. *11FSSC 22000 (Food Safety System Certification 22000) is a standard developed by the Foundation of Food Safety Certification to certify management systems for the production of safe food.
  5. *12The logistical materials division has acquired certification limited to STEC®.
  6. *13Mizushima Plant acquired FSSC 22000 certification for the manufacture of food-grade synthetic aroma chemicals.

Organizations Certified to the International Occupational Health and Safety Standard (ISO 45001:2018)

Site
Zeon Chemicals L.P.
Zeon Chemicals Singapore Pte. Ltd.
Zeon Advanced Polymix Co., Ltd.

Corporate Governance Data (Zeon Corporation)

Composition of directors, Audit & Supervisory Board members,
and corporate officers *1

Item Unit FY2023 FY2024 FY2025
Composition of the Board of Directors Inside directors Men persons 5 5 5
Women persons 1 1 0
Total persons 6 6 5
Percentage of women % 16.7 16.7 0.0
Outside directors Men persons 3 3 2
Women persons 2 2 3
Total persons 5 5 5
Percentage of women % 40.0 40.0 60.0
Total number of directors Men persons 8 8 7
Women persons 3 3 3
Total persons 11 11 10
Percentage of women % 27.3 27.3 30.0
Percentage of outside directors % 45.5 45.5 50.0
Composition of the Audit & Supervisory Board Inside Audit & Supervisory Board members Men persons 2 2 2
Women persons 0 0 0
Total persons 2 2 2
Percentage of women % 0.0 0.0 0.0
Outside Audit & Supervisory Board members Men persons 3 2 2
Women persons 0 1 1
Total persons 3 3 3
Percentage of women % 0.0 33.3 33.3
Total number of Audit & Supervisory Board members Men persons 5 4 4
Women persons 0 1 1
Total persons 5 5 5
Percentage of women % 0.0 20.0 20.0
Percentage of outside Audit & Supervisory Board members % 60.0 60.0 60.0
Composition of corporate officers Men persons 17 14 13
Women persons 1 1 0
Total persons 18 15 13
Percentage of women % 5.6 6.7 0.0
  1. *1Information as of July each year, after the Annual General Meeting of Shareholders

Number of meetings of the Board of Directors and other bodies

Item Unit FY2022 FY2023 FY2024
Board of Directors No. of meetings times 14 18 18
Average attendance rate of directors % 98.6 99.5 99.5
Average attendance rate of Audit & Supervisory Board members % 95.7 97.2 95.1
Audit & Supervisory Board No. of meetings times 6 7 6
Average attendance rate of Audit & Supervisory Board members % 96.7 97.6 97.6
Director and Officer Nomination and Compensation Committee No. of meetings times 5 5 7
Average attendance rate of committee members % 100.0 100.0 98.0

Attendance rates for meetings of the Board of Directors, the Audit & Supervisory Board, and other bodies for FY2024 *2

Title Name Board of Directors Audit & Supervisory Board Director and Officer Nomination and Compensation Committee
Chairman Kimiaki Tanaka 18/18 100% - - 7/7 100%
President and CEO Tetsuya Toyoshima 18/18 100% - - 7/7 100%
Director & Senior Corporate Officer Kazuyoshi Matsuura 18/18 100% - - - -
Director & Senior Corporate Officer Yoshiyuki Sone 18/18 100% - - - -
Director & Senior Corporate Officer Yuichiro Konishi 18/18 100% - - - -
Director & Corporate Officer Erisa Watanabe 18/18 100% - - - -
Outside Director (Independent) Takao Kitabata 18/18 100% - - 6/7 86%
Outside Director (Independent) Tadanobu Nagumo 18/18 100% - - 7/7 100%
Outside Director (Independent) Fumiaki Ikeno 18/18 100% - - 7/7 100%
Outside Director (Independent) Miki Akiyama 18/18 100% - - 7/7 100%
Outside Director (Independent) Saeko Masumi 17/18 94% - - 7/7 100%
Audit & Supervisory Board Member Toru Nishijima 18/18 100% 6/6 100% - -
Audit & Supervisory Board Member Sachio Hayashi 18/18 100% 6/6 100% - -
Audit & Supervisory Board Member (External) (Independent) Hiroki Kimura 16/18 89% 5/6 83% - -
Audit & Supervisory Board Member (External) (Independent) Masayoshi Nakamura 10/11 91% 4/4 100% - -
Audit & Supervisory Board Member (External) (Independent) Miyuki Tanabu 11/11 100% 4/4 100% - -
Audit & Supervisory Board Member (External) (Independent) Akio Kohri *3 6/7 86% 2/2 100% - -
Audit & Supervisory Board Member (External) (Independent) Nobutake Nishijima *3 7/7 100% 2/2 100% - -
  1. *2Data from April 2024 to March 2025
  2. *3Mr. Akio Kohri and Mr. Nobutake Nishijima retired at the conclusion of the Annual General Meeting of Shareholders held in June 2024.

Director and officer compensation

Item Unit FY2022 FY2023 FY2024
Inside directors No. of persons persons 7 6 6
Total compensation million yen 251 424 406
Inside Audit & Supervisory Board members No. of persons persons 2 3 2
Total compensation million yen 53 47 53
Outside officers No. of persons persons 6 8 10
Total compensation million yen 66 84 90
Total compensation for directors and officers *4 No. of persons persons 15 17 18
Total compensation million yen 370 555 549
  1. *4The above figures for the number of directors and Audit & Supervisory Board members and for their compensation include compensation for officers who retired at the conclusion of the Annual General Meeting of Shareholders.

Compliance Data

Item Unit FY2022 FY2023 FY2024
No. of reports received via the internal reporting system Zeon Group companies in Japan cases 4 7 6
Internal audits No. of departments/companies audited *5 Zeon Corporation departments 16 15 13
Zeon Group companies in Japan companies 10 7 7
Zeon Group companies outside Japan companies 10 11 5
Total organizations 36 33 25
Related internal training Compliance Lectures on laws and regulations *6 sessions 34 35 35
persons (total) 6,999 2,403 6,329
Information security Rate of participation in the internal test % 96.4 97.8 91.4
Overall sustainability Rate of participation in the internal test % 97.3 98.2 96.8
  1. *5All Zeon Group companies, whether consolidated or non-consolidated (excluding certain affiliates)
  2. *6Lectures on the Antimonopoly Act, trade secrets, personal information protection, contract precautions, and other legal and regulatory topics