Sustainability Data 2025

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Overview of Chugai performance data for sustainability and DE & I

Social Area including DE&I

  2023 2024 2025
Full-time employees (Chugai Group)*1, *2 Consolidated 7,604 7,778 7,872
Full-time employees (Chugai, non-consolidated)*1, *2 Chugai 4,903 5,026 5,104
New hires (new graduates + mid-career)*1 Chugai 283 (new graduates:146 + mid-career:137) 287 (new graduates:155 + mid-career:132) 253 (new graduates:166 + mid-career:87)
Board of Directors*1 Chugai 9
(3 outside directors)
(2 females) 		8
(3 outside directors)
(2 females) 		9
(3 outside directors)
(2 females)
Auditors*1 Chugai 5
(3 outside auditors)
(1 female)		 5
(3 outside auditors)
(2 females)		 5
(3 outside auditors)
(2 females)
Executive Officers*1 *3 Chugai 12
(2 females)		 11
(1 female)		 9
(2 females)
Average age*1 Chugai 42 years, 8 months
Male 44 years
Female 39 years, 7 months 		42 years, 7 months
Male 44 years
Female 39 years, 8 months 		42 years, 7 months
Male 43 years, 10 months
Female 40 years, 1 months
Average service years*1 Chugai 15 years,
10 months		 15 years,
6 months		 15 years,
5 months
Percentage of female employees Chugai/Domestic group All workers 32.0%
Managerial level*4 19.0%
Managers*5 17.2% 		All workers 32.7%
Managerial level*4 19.7%
Managers*5 17.6% 		All workers 33.2%
Managerial level*4 21.2%
Managers*5 19.2%
Ratio of employees with disabilities*6 Domestic group 2.49% 2.68% 2.68%
Ratio of employees taking childcare leave*7 *8 Chugai Male 87.6%
Female 100.0% 		Male 98.2%
Female 101.8%		 Male 93.4%
Female 104.9%
Employees who took family-care leave Chugai 5 4 2
Gender pay gap*9 All workers 78.7%
Regular workers 78.6%
Other workers 70.6% 		All workers 80.4%
Regular workers 80.0%
Other workers 75.2% 		All workers 81.4%
Regular workers 81.2%
Other workers 76.3%
Employees who took volunteer leave Chugai 0 0 0
Employees who took volunteer holiday Chugai 4 12 14
Inquiries to the Medical Information Department Chugai 46,252 39,797 36,594
Information events for the media and institutional investors Chugai 31 31 28
Number of individual meetings with domestic and overseas investors and securities analysts Chugai 663 819 986
Briefings for individual investors and shareholders: Chugai 3 1 1
Number of shareholders*1 Chugai 54,361 44,636 58,967
Outstanding shares*1 Chugai 1,679,057,667 1,679,057,667 1,679,057,667
Ratio of shares held by foreign investors*1 Chugai 77.49% 78.43% 77.88%
Ratio of shares held by “individual/other” shareholders*1 Chugai 3.47% 3.06% 3.18%
  1. *1 Figures as of December 31.
  2. *2 “Employees” refers to permanent, full-time employees.
  3. *3 Excludes those who concurrently serve as directors.
  4. *4 based on employees of Chugai Pharmaceutical Co. Ltd. (Non-consolidated)
  5. *5 based on employees of Chugai Group companies in Japan (Chugai Pharmaceutical Co. Ltd. + affiliate companies in Japan)
  6. *6 As we have been certified for “Special Provision on Calculation for Corporate Groups” since 2021(Based on results as of December 1 and the calculation defined by the law)
  7. *7 The number of employees who gave birth in the relevant fiscal year is calculated as a parameter, and the number of employees who started long-term absence from work for child care is calculated as the number of the numerator. (For fiscal year 2023, any percentage exceeding 100% is indicated as “100.0%”)
  8. *8 From 2022 onwards, in accordance with revisions to the Child Care and Family Care Leave Act, only those taking childcare leave for the first time will be eligible
  9. *9 Ratio of the average annual salary of female employees to the average annual salary of male employees (In fiscal year 2024 and after, calculations exclude employees assigned overseas during the fiscal year, as well as new hires (mid-career hires, new graduates, and transferred employees))

<Major reasons for gender pay gap in regular workers>

  • We have introduced a human resources system aimed at enabling everyone to play an active role regardless of age or background, with clear and differentiated evaluation and compensation tailored to their roles and performance. Compensation is the same for men and women, and any current salary gaps are due to differences in job duties, job grades, and age structure.
  • For managers, the introduction of a job grading system means that salaries are determined based on position. As a result, the ratio of the annual average salary of female employees compared to male is minimal at 94.7%, with each level of managerial hierarchy maintaining a wage ratio exceeding 95%.
  • To address one of the factors behind the gap, we set KPIs in 2022 for 2030 and are strengthening the appointment of female managers and support for career development. Specifically, we implemented a dialogue program “Naname Check-in” between young female employees and female managers outside their departments, providing 64 participants with opportunities to gain insights into career development and balancing work and childcare. In addition, we have introduced a “sponsorship system” in which all executive officers support the development and promotion of female successor candidates. Through these initiatives, feedback such as “I feel more positive about the role of manager” and “my career perspective has broadened” has been received, leading to increased motivation to take on challenges. As a result, the ratio of female managers increased from 15.9% in 2022 to 19.2% in 2025.
  • Under the new human resources system introduced in 2025, we have combined the job grade system with a job posting framework to create an environment where employees can proactively build their careers regardless of age or background. The proportion of women among job posting applicants was 30.0%, and among successful candidates was 35.2%, which is at a level comparable to the overall proportion of female employees (33.9%), indicating that opportunities to take on challenges are secured regardless of gender.
  • The main factors contributing to the gap among non-managerial level employees (85.3%) are differences in length of childcare leave and utilization ratio of shortened work hours for childcare, as well as limitations on overtime work due to life events. In particular, the impact is significant in G3 (87.6%), where there are more employees taking childcare leave and working shorter hours. As the rate of male employees taking childcare leave exceeds 90%, we have set targets for longer paternity leave and are continuously working to raise awareness and improve the workplace environment to establish a corporate culture in which both men and women participate in childcare. Through seminars by external lecturers and roundtable discussions with male employees who have taken long-term childcare leave, we shared the voices of employees, supervisors, and colleagues to promote understanding in the workplace. In addition, we held “couple seminars” that allow spouses from outside the company to participate, aiming to realize a society where both men and women can participate in childcare and thrive. As a result, the average number of days of paternity leave taken by male employees increased from 18.9 days in 2022 to 37.7 days in 2025.
  • Through these initiatives, the gender pay gap improved from 77.7% in 2022 to 81.4% in 2025. Our goals and initiatives for promoting women’s participation in the workplace are detailed in “Section 2: Business Overview - 2. Approach and Initiatives on Sustainability.”

Social Performance Data

The Social Data are subjected to third-party assurance in order to increase their reliability. The data indicated with Independent Assurance Mark for the year of 2025 have been independently assured by KPMG AZSA Sustainability Co., Ltd.
Independent Practitioner’s Limited Assurance Report [PDF 175KB]

1. Injury frequency rate, Occupational incidence severity and Occupational illness frequency rate

  2021 2022 2023 2024 2025
Injury Frequency rate (Employees/Contractor employees) Lost-worktime Number of accidents 6 0 1 2 4
Injury frequency rate 0.40 0.00 0.07 0.13 Independent Assurance Mark 0.25
No lost-worktime Number of accidents 12 22 15 27 23
Injury frequency rate 0.80 1.48 1.02 1.74 1.46
Total Number of accidents 18 22 16 29 27
Injury frequency rate 1.21 1.48 1.09 1.87 1.71
Occupational incidence severity (Employees/Contractor employees) Total lost-workdays 69 0 7 103 256
Occupational incidence severity 0.004 0.000 0.000 0.005 Independent Assurance Mark 0.013
Occupational Illness Frequency rate (Employees) Number of accidents 0 0 0 0 0
Occupational Illness Frequency rate 0.00 0.00 0.00 0.00 Independent Assurance Mark 0.00

2. Fatalities (Employees, Contractor employees)

Number of Fatalities

  2021 2022 2023 2024 2025
Employees 0 0 0 0 Independent Assurance Mark 0
Contractor employees 0 0 0 0 Independent Assurance Mark 0

Standards for Calculating Social Performance Indicators

<The boundary of calculation>
Chugai Group employees: Employees at all Group sites and facilities in Japan (including contract employees, part-time employees, temporary employees, employees on loan to our group)
Contractor employees: Employees of contractors in Japan (dealing with equipment and equipment maintenance contractors, etc.) who work together with Chugai Group employees at plants, research laboratories, and other business sites with hazardous operations.

<Calculation period>
January - December 2025

Lost-worktime Injury Frequency rate, Occupational incidence severity and Occupational Illness Frequency rate

Social performance indicator Calculation method
Lost-worktime injury frequency rate Number of people injured or killed in occupational accidents per 1 million work hours (resulting in at least one work day off, and an application for accident compensation insurance, but excluding accidents during commuting), showing the frequency of occurrence
Injury frequency rate = number of people injured or killed in occupational accidents / total number of actual working hours*1 x 1,000,000
Occupational incidence severity Number of days of work lost to occupational accidents (excluding accidents during commuting) per 1,000 work hours, showing the severity of the accident
Occupational incidence severity = number of workdays lost / total number of actual working hours*1 x 1,000
Occupational Illness Frequency rate Number of occupational diseases per 1 million work hours (calculated based on persons certified as occupational accidents) represents the frequency of occurrence of occupational diseases.
Occupational diseases are stipulated in Article 35 of the Ordinance for Enforcement of the Labor Standards Act in Japan.
Occupational Illness Frequency rate = number of occupational diseases / total number of actual working hours*1 x 1,000,000
  1. *1 When the number of actual working hours of temporary employees is unknown in FY 2023 and before, it is estimated by multiplying the number of such workers as of December 1 of the relevant year x 7.75 hours/day x working days. In FY 2024 and thereafter, all figures including temporary employees are calculated based on actual working hours.

Fatalities

Social performance indicator Calculation method
Fatalities The death of a worker arising from an occupational disease or injury sustained or contracted while performing work that is controlled by the organization or that is being performed in workplaces that the organization controls.

Economic Area

International Financial Reporting Standards (IFRS)

Unit: 100 millions of yen (rounded to the nearest 100 million)

  2023 2024 2025
Revenue Consolidated 11,114 11,706 12,579
Research and development Consolidated 1,749 1,814 1,876
Operating profit Consolidated 4,392 5,420 5,988
Income taxes Consolidated 1,183 1,557 1,638
Net income Consolidated 3,255 3,873 4,340
Total net assets Consolidated 16,256 19,015 20,257

Environmental Performance Data

The Environmental Data are subjected to third-party assurance in order to increase their reliability. The data indicated with Independent Assurance Mark for the year of 2025 have been independently assured by KPMG AZSA Sustainability Co., Ltd.
Independent Practitioner’s Limited Assurance Report [PDF 175KB]
For progress toward the Medium-term Environmental Targets 2030, see the pages for Climate Change Countermeasures, Recycling-oriented Resource Usage, and Protection of Biodiversity.

1. Thermal equivalent values of Energy Consumption*1 and CO2 Emissions by Year

  Unit 2023 2024 2025
Electricity GJ 1,245,932 1,266,895 1,321,607
Sustainable electricity GJ 1,210,420 1,232,832 1,321,607
Non sustainable electricity GJ 35,513 34,063 —
Heat GJ 29,008 29,543 25,937
Fuel Oil GJ 273 233 551
Diesel GJ 2,898 3,013 3,592
Gasoline GJ 22,529 24,570 24,875
City gas GJ 912,985 950,022 911,131
LPG GJ 640 505 534
Total energy consumption TJ 2,214 2,275 Independent Assurance Mark 2,288
Renewable energy TJ 1,210 1,233 1,322
Non renewable energy TJ 1,004 1,042 Independent Assurance Mark 967
CO2 emissions from energy consumption*2 tCO2e 50,787 53,895 Independent Assurance Mark 49,887
  1. *1 The thermal equivalent values of energy consumption are based on the heating value per unit in the Enforcement Regulations of the Law Concerning the Rational Use of Energy and Conversion to Non-Fossil Energy. Heating value per unit for sustainable electricity is the usage level of electricity purchased from electric utility companies defined in the Enforcement Regulations of the “Act on the Rational Use of Energy”(0.00864 GJ/kWh). (For heating value per unit, see “Greenhouse Gas Emissions Per Unit”)
  2. *2 Calculation by Market-based Method

2. Thermal equivalent values of Energy Consumption and CO2 Emissions by Site or Facility in 2025

  Unit Ukima Site CPMC*2 Fujieda
Plant		 CPMC*2 Utsunomiya
Plant
Electricity GJ 533,003 136,786 284,373
Sustainable electricity GJ 533,003 136,786 284,373
Non sustainable electricity GJ — — —
Heat GJ — — —
Fuel Oil GJ 443 78 31
Diesel GJ — 4 5
Gasoline GJ — 64 5
City gas GJ 236,509 383,950 157,561
LPG GJ — — 495
Total energy consumption GJ 769,954 520,881 442,469
Renewable energy GJ 533,003 136,786 284,373
Non renewable energy GJ 236,951 384,096 158,096
CO2 emissions from energy consumption*1 tCO2e 12,152 19,688 8,107
  Unit Chugai Life Science Park Yokohama Head Office and Branches Overseas Group Companies*3
Electricity GJ 314,112 25,114 28,220
Sustainable electricity GJ 314,112 25,114 28,220
Non sustainable electricity GJ — — —
Heat GJ — — 25,937
Fuel Oil GJ — — —
Diesel GJ — 3,516 67
Gasoline GJ — 20,464 4,343
City gas GJ 132,920 191 —
LPG GJ 39 — —
Total energy consumption GJ 447,071 49,285 58,566
Renewable energy GJ 314,112 25,114 28,220
Non renewable energy GJ 132,960 24,171 30,346
CO2 emissions from energy consumption*1 tCO2e 6,815 1,655 1,470
  1. *1 Calculation by Market-based Method
  2. *2 CPMC is the abbreviation for Chugai Pharma Manufacturing Co., Ltd.
  3. *3 Chugai Pharmabody Research Pte. Ltd., Chugai Pharma Technology Taizhou Co. Ltd., Chugai Pharma Europe Ltd., Chugai Pharma U.K. Ltd., Chugai Pharma France SAS., Chugai Pharma Germany Gmbh, Chugai Pharma USA Inc., Chugai Pharma China Co., Ltd., Chugai Pharma Taiwan Ltd., Chugai Venture Fund, LLC

3. Renewable Energy Consumption by Year

  Unit 2023 2024 2025
Solar power MWh 198 259 246
Sustainable electricity purchased*1 MWh 140,095 142,689 152,964
Total MWh 140,293 142,948 Independent Assurance Mark 153,210
  1. *1 Includes purchases of Green Power Certificates and Non-Fossil Fuel Certificates

4. Purchase volume of Green Power Certificates and Non-Fossil Fuel Certificates by Year

  Unit 2023 2024 2025
Purchase volume of Green Power Certificates MWh 30,624 9,045 6,631
Purchase volume of Non-Fossil Fuel Certificates MWh 3,483 9,340 4,840
Total MWh 34,107 18,385 11,471

5-1. Greenhouse Gas Emissions in 2025

  Unit Domestic Overseas Group Companies*1
Plant Research Laboratories Branches Head Office
Scope 1 (Direct emissions from fuel combustion) tCO2e 34,412 12,350 1,638 17 302
  Subtotal tCO2e 48,417 302
Scope 1 (Direct emissions from non-energy processes) HFCs tCO2e 135 111 — — —
CFCs, HCFCs tCO2e — — — — —
PFCs tCO2e — — — — —
CH4 tCO2e — — — — —
N2O tCO2e — — — — —
SF6 tCO2e 91 — — — —
CO2 tCO2e 55 49 — — 14
  Subtotal tCO2e 441 14
Scope 1:Total tCO2e 49,175
Scope 2 (Market-based Method) tCO2e — — — — 1,167
Scope 2 (Market-based Method):Total tCO2e 1,167
Scope 1 + Scope 2 (Market-based Method):Total tCO2e 50,342
Scope 2 (Location-based Method) tCO2e 30,447 31,646 749 486 2,459
Scope 2 (Location-based Method):Total tCO2e 65,787
Scope 1 + Scope 2 (Location-based Method):Total tCO2e 114,962
Scope 3 Category 1 (Purchased Goods and Services) tCO2e 909,212 —
Category 2 (Capital Goods) tCO2e 116,869
Category 3 (Fuel- and Energy-Related Activities Not Included in Scope 1 or Scope 2) tCO2e 23,407
Category 4 (Upstream Transportation and Distribution) tCO2e 13,720 —
Category 5 (Waste Generated in Operations) tCO2e 1,819 1,054 101 68 25
  Subtotal tCO2e 3,042 25
Category 6 (Business Travel) Domestic tCO2e 1,349 —
International tCO2e 3,664 —
  Subtotal tCO2e 5,013 —
Category 7 (Employee Commuting) tCO2e 2,513 —
Category 8 (Upstream Leased Assets) tCO2e Not applicable
Category 9 (Downstream Transportation and Distribution) tCO2e 29,909 —
Category 10 (Processing of Sold Products) tCO2e Not applicable
Category 11 (Use of Sold Products) tCO2e Not applicable
Category 12 (End-of-Life Treatment of Sold Products) tCO2e 101 —
Category 13 (Downstream Leased Assets) tCO2e Not applicable
Category 14 (Franchises) tCO2e Not applicable
Category 15 (Investments) tCO2e 20 —
Scope 3:Total tCO2e 1,103,831
Scope 1 + Scope 2 (Market-based Method) + Scope 3: Total tCO2e 1,154,173
Scope 1 + Scope 2 (Location-based Method) + Scope 3: Total tCO2e 1,218,793
  1. *1 Chugai Pharmabody Research Pte. Ltd., Chugai Pharma Technology Taizhou Co. Ltd., Chugai Pharma Europe Ltd., Chugai Pharma U.K. Ltd., Chugai Pharma France SAS., Chugai Pharma Germany Gmbh, Chugai Pharma USA Inc., Chugai Pharma China Co., Ltd., Chugai Pharma Taiwan Ltd., Chugai Venture Fund, LLC

5-2. GHG Emissions by Year

  Unit 2023 2024 2025
Scope 1 (Direct emissions from fuel combustion)*1 tCO2e 47,329 50,628 Independent Assurance Mark 48,720
Scope 1 (Direct emissions from non-energy processes) tCO2e 662 515 Independent Assurance Mark 455
Scope 1:Total tCO2e 47,991 51,143 Independent Assurance Mark 49,175
Scope 2:Total (Market-based Method)*1 tCO2e 3,458 3,267 Independent Assurance Mark 1,167
Scope 2: Total (Location-based Method)*1 tCO2e 64,663 65,695 Independent Assurance Mark 65,787
Scope 3
Category 1 (Purchased Goods and Services)		 tCO2e 990,121 684,778 909,212
Scope 3
Category 2 (Capital Goods)		 tCO2e 79,339 220,901 Independent Assurance Mark 116,869
Scope 3
Category 3 (Fuel- and Energy-Related Activities Not Included in Scope 1 or Scope 2)		 tCO2e 21,608 23,566 23,407
Scope 3
Category 4 (Upstream Transportation and Distribution)		 tCO2e 9,397 11,266 Independent Assurance Mark 13,720
Scope 3
Category 5 (Waste Generated in Operations)*2		 tCO2e 3,780 3,525 Independent Assurance Mark 3,067
Scope 3
Category 6 (Business Travel)		 tCO2e 3,915 4,454 Independent Assurance Mark 5,013
Scope 3
Category 7 (Employee Commuting)		 tCO2e 2,348 2,478 2,513
Scope 3
Category 8 (Upstream Leased Assets)		 tCO2e Not applicable
Scope 3
Category 9 (Downstream Transportation and Distribution)		 tCO2e 29,808 29,351 29,909
Scope 3
Category 10 (Processing of Sold Products)		 tCO2e Not applicable
Scope 3
Category 11 (Use of Sold Products)		 tCO2e Not applicable
Scope 3
Category 12 (End-of-Life Treatment of Sold Products)		 tCO2e 172 139 101
Scope 3
Category 13 (Downstream Leased Assets)		 tCO2e Not applicable
Scope 3
Category 14 (Franchises)		 tCO2e Not applicable
Scope 3
Category 15 (Investments)		 tCO2e 32 29 20
Scope 3:Total tCO2e 1,140,520 980,487 1,103,831
  1. *1 Chugai Life Science Park Yokohama receives electricity, cold water, hot water, and steam from Tokyo Gas Engineering Solutions Co., Ltd. (TGES), but the city gas and electricity purchased by TGES are included as our energy consumption. Greenhouse gas emissions from the use of the said city gas are accounted in Scope 1, and greenhouse gas emissions from the use of the said electricity are included in Scope 2.
  2. *2 Emissions for 2023 and 2024 were recalculated.

6. Annual Industrial Waste Generation

Types   Unit 2023 2024 2025
Sludge Generated tonnes 801939571
Disposed Incineration Disposal tonnes 396644459
Landfilled tonnes 661
Final Disposal tonnes 543244
Recycled tonnes 399289112
Waste Oils Generated tonnes 103163144
Disposed Incineration Disposal tonnes 103163144
Landfilled tonnes 000
Final Disposal tonnes 000
Recycled tonnes 000
Waste Acids Generated tonnes 643481263
Disposed Incineration Disposal tonnes 974753
Landfilled tonnes 000
Final Disposal tonnes 000
Recycled tonnes 545433209
Waste Alkalis Generated tonnes 205157451
Disposed Incineration Disposal tonnes 11354338
Landfilled tonnes 000
Final Disposal tonnes 000
Recycled tonnes 93103112
Waste Plastics Generated tonnes 791559486
Disposed Incineration Disposal tonnes 779517447
Landfilled tonnes 020
Final Disposal tonnes 1679
Recycled tonnes 124039
Waste Woods Generated tonnes 10510
Disposed Incineration Disposal tonnes 1059
Landfilled tonnes 000
Final Disposal tonnes 100
Recycled tonnes 000
Waste Metals Generated tonnes 1426959
Disposed Incineration Disposal tonnes 711417
Landfilled tonnes 000
Final Disposal tonnes 62716
Recycled tonnes 725642
Glass Ceramics Generated tonnes 352227
Disposed Incineration Disposal tonnes 181115
Landfilled tonnes 000
Final Disposal tonnes 10111
Recycled tonnes 171212
Products using mercury (batteries, fluorescent lamps, mercury thermometers, etc.) Generated tonnes 311
Disposed Incineration Disposal tonnes 201
Landfilled tonnes 000
Final Disposal tonnes 300
Recycled tonnes 000
Non-Hazardous Waste Total Generated tonnes 2,7342,395 Independent Assurance Mark 2,011
Disposed tonnes 1,5961,462 Independent Assurance Mark 1,483
  Incineration Disposal tonnes 1,5891,4541,483
  Landfilled tonnes 781
Final Disposal tonnes 1454781
Recycled tonnes 1,138933 Independent Assurance Mark 527
Flammable Waste Oils Generated tonnes 273528401
Disposed Incineration Disposal tonnes 273520397
Landfilled tonnes 000
Final Disposal tonnes 000
Recycled tonnes 084
Strong Waste Acids (pH2.0 or less) Generated tonnes 159711
Disposed Incineration Disposal tonnes 746
Landfilled tonnes 000
Final Disposal tonnes 000
Recycled tonnes 8935
Strong Waste Alkalis (pH12.5 or higher) Generated tonnes 387345117
Disposed Incineration Disposal tonnes 377340113
Landfilled tonnes 000
Final Disposal tonnes 000
Recycled tonnes 954
Infectious Waste Generated tonnes 116160168
Disposed Incineration Disposal tonnes 116160168
Landfilled tonnes 000
Final Disposal tonnes 601
Recycled tonnes 000
Specified Hazardous Industrial Waste Generated tonnes 222824
Disposed Incineration Disposal tonnes 222824
Landfilled tonnes 000
Final Disposal tonnes 203
Recycled tonnes 000
Mercury Waste Generated tonnes 000
Disposed Incineration Disposal tonnes 000
Landfilled tonnes 000
Final Disposal tonnes 000
Recycled tonnes 000
Hazardous Waste*1 Total Generated tonnes 8131,158 Independent Assurance Mark 721
Disposed tonnes 7961,053 Independent Assurance Mark 708
  Incineration Disposal tonnes 7961,053708
  Landfilled tonnes 000
Final Disposal tonnes 804
Recycled tonnes 18106 Independent Assurance Mark 13
Waste Utilizing the Wide-Area Certification System Generated tonnes 11 Independent Assurance Mark 2
Disposed tonnes —— Independent Assurance Mark —
  Incineration Disposal tonnes ———
  Landfilled tonnes ———
Final Disposal tonnes ———
Recycled tonnes 11 Independent Assurance Mark 2
Total Generated tonnes 3,5483,554 Independent Assurance Mark 2,734
Disposed tonnes 2,3912,514 Independent Assurance Mark 2,191
  Incineration Disposal tonnes 2,3842,5062,191
  Landfilled tonnes 781
Final Disposal*2 tonnes 1534784
Recycled tonnes 1,1571,039 Independent Assurance Mark 543
Recycling Ratio*3 % 32.629.219.9
Final Disposal Ratio*4 % 4.31.33.1
  1. *1 The waste applicable to specially controlled industrial waste as prescribed by the Waste Management and Public Cleansing Act of Japan.
  2. *2 Total waste landfilled after incineration. Calculated by multiplying the amount of waste disposed by the incineration factor (All non-recyclable waste is incinerated and is not directly landfilled.).
  3. *3 Amount of waste recycled/Amount of waste generated
  4. *4 Amount of waste landfilled/Amount of waste generated
  5. *5 In 2025, we revised the criteria for recycling and excluded thermal recycling from the definition of recycling. Consequently, the data for 2023 and 2024 have been recalculated on a consistent basis.
  6. *6 It was identified that there had been errors in the aggregation of waste data at certain sites, and the figures for FY2023 and FY2024 have been corrected accordingly.

7. Trading volume of valuables

  Unit 2023 2024 2025
Reuse tonnes 191 0.5 Independent Assurance Mark 2.5
Recycle tonnes 95 93 Independent Assurance Mark 504

8. Handled Amounts of Chemical Substances Covered by PRTR Law*1*2 (April – March)

  Unit FY
2022		 FY
2023		 FY
2024
2-Aminoethanol tonnes 2.4 1.9 1.2
Dichloromethane tonnes 2.6 1.9 2.7
Toluene tonnes 1.3 1.2 1.9
N, N-Dimethylformamide tonnes 21.4 5.1 6.9
N-hexane tonnes 1.3 1.1 1.2
  1. *1 Chemical substances used over 1 ton per year
  2. *2 In accordance with the Act on Confirmation, etc. of Release Amounts of Specific Chemical Substances in the Environment and Promotion of Improvements to the Management Thereof (PRTR Law), this disclosure covers Class I Designated Chemical Substances as defined under the revised regulations effective April 1, 2023.

9. Annual Water Withdrawal and Wastewater

  Unit 2023 2024 2025
City water thousand tonnes 485 481 479
Well water thousand tonnes 539 619 560
Industrial water thousand tonnes 794 836 830
Rainwater thousand tonnes 2 3 2
Total water use thousand tonnes 1,820 1,939 Independent Assurance Mark 1,871
Wastewater (Third-party destinations) thousand tonnes 912 916 890
Wastewater (Fresh surface water) thousand tonnes 540 587 584
Wastewater (Seawater) thousand tonnes — — —
Wastewater (Groundwater) thousand tonnes — — —
Total Wastewater thousand tonnes 1,452 1,503 Independent Assurance Mark 1,474
Amount consumed thousand tonnes 368 436 Independent Assurance Mark 397
  1. *1 From 2025, the method for calculating wastewater volume at Chugai Life Science Park Yokohama has been changed. The figures for 2023 and 2024 have also been recalculated using the same method.

10. Annual Total BOD

  Unit 2023 2024 2025
Total BOD kg/year 5,276 3,786 6,974

11. 2025 Water stress, Water withdrawals and Wastewater by Site or Facility

Site Unit Ukima Site CPMC*1
Fujieda Plant		 CPMC*1
Utsunomiya Plant
Water stress
(Current)		 Medium to High Medium to High Medium to High
Water stress
(Future)		 Medium to High Medium to High Medium to High
City water thousand tonnes 322 61 77
Well water thousand tonnes 3 558 0
Industrial water thousand tonnes 219 0 377
Rainwater thousand tonnes — — —
Total water withdrawal thousand tonnes 545 619 454
Wastewater (Third-party destinations) thousand tonnes 396 — 378
Wastewater (Fresh surface water) thousand tonnes — 584 —
Wastewater (Seawater) thousand tonnes — — —
Wastewater (Groundwater) thousand tonnes — — —
Total wastewater thousand tonnes 396 584 378
Total amount consumed thousand tonnes 149 34 77
Site Unit Chugai Life Science Park Yokohama CPR*2 CPTT*3
Water stress
(Current)		 Medium to High Low Medium to High
Water stress
(Future)		 Medium to High Low Medium to High
City water thousand tonnes 17 0.9 0.2
Well water thousand tonnes — — —
Industrial water thousand tonnes 234 — —
Rainwater thousand tonnes 2 — —
Total water withdrawal thousand tonnes 253 0.9 0.2
Wastewater (Third-party destinations) thousand tonnes 116 0.9 0.2
Wastewater (Fresh surface water) thousand tonnes — — —
Wastewater (Seawater) thousand tonnes — — —
Wastewater (Groundwater) thousand tonnes — — —
Total wastewater thousand tonnes 116 0.9 0.2
Total amount consumed thousand tonnes 137 0 0
  1. *1 CPMC is the abbreviation for Chugai Pharma Manufacturing Co., Ltd.
  2. *2 CPR is the abbreviation for Chugai Pharmabody Research Pte. Ltd.
  3. *3 CPTT is the abbreviation for Chugai Pharma Technology Taizhou Co. Ltd.
  4. Water stress: Current; December 2025, Future; 2030 (Business As Usual; Course of Events), Low: <10%, Low to Medium: 10-20%, Medium to High: 20-40%, High: 40-80%, Extremely high: >80%, Evaluation Results by WRI Aqueduct 4.0

12. 2025 Number of sites and water withdrawal by site in water stress areas

Water stress A number of sites Total water withdrawals Percentage of total water withdrawal
thousand tonnes %
Low 1 site 0.9 0.05
Medium to High 5 sites 1,870 99.95

13. 2025 Total BOD by Site or Facility

  Unit Ukima Site CPMC*1
Fujieda Plant		 CPMC*1
Utsunomiya Plant		 Chugai Life Science Park Yokohama
Total BOD kg/year 4,523 1,139 408 905
  1. *1 CPMC is the abbreviation for Chugai Pharma Manufacturing Co., Ltd.

14. 2025 Total Air Pollution by Site or Facility

  Unit Ukima Research Laboratories CPMC*1
Ukima Plant		 CPMC*1
Fujieda Plant		 CPMC*1
Utsunomiya Plant		 Chugai Life Science Park Yokohama
Nitrogen Oxides (NOx) kg 1,560 1,593 18,854 3,220 4,547
Total kg Independent Assurance Mark 29,774
Sulfur Oxides (SOx) kg — — — — —
Total kg Independent Assurance Mark —
Soot Emissions kg 223 243 382 260 59
Total kg Independent Assurance Mark 1,167
  1. *1 CPMC is the abbreviation for Chugai Pharma Manufacturing Co., Ltd.

15. Use of Specified Containers and Packaging under the Law for Promotion of Sorted Collection and Recycling of Containers and Packaging

  Unit 2023 2024 2025
Brown glass bottles tonnes 9 6 6
Paper containers and packaging tonnes 22 22 24
Plastic containers and packaging tonnes 72 71 60

16. Environmental Accounting

Breakdown of Investments and Costs for Environmental Protection

General Area Basic Activity Detailed Activity Investments Costs
Millions of yen Millions of yen
(1) Business area costs (1)-1 Pollution prevention costs (1) Air pollution prevention (including acid rain) costs 15 517
(2) Water pollution prevention costs 607 842
(3) Soil pollution prevention costs 0 119
(4) Noise prevention costs 21 2
(5) Vibration prevention costs 0 0
(6) Foul odor prevention costs 0 20
(7) Ground sinkage prevention costs 0 13
(8) Other pollution prevention costs 0 10
Subtotal 643 1,523
(1)-2 Global environmental
protection costs		 (1) Global warming prevention and energy-saving costs 702 1,312
(2) Ozone layer depletion prevention costs 118 380
(3) Other global environmental protection costs 55 98
Subtotal 875 1,790
(1)-3 Resource recycling costs (1) Efficient resource use costs — —
(2) Industrial waste recycling, etc. costs 0 96
(3) General waste recycling, etc. costs 0 11
(4) Industrial waste treatment and disposal costs 7 216
(5) General waste treatment and disposal costs 1 3
(6) Other resource recycling costs — —
Subtotal 7 327
Total (1)-1 to (1)-3 1,525 3,640
(2) Upstream and downstream
costs		 (1) Additional costs of green purchasing in place of regular purchasing — 482
(2) Additional costs of providing environmental goods — —
(3) Additional costs of environmentally friendly containers and packaging — —
(4) Costs for collection, recycling and appropriate disposal of products, etc. — 0
(5) Other upstream and downstream costs — 14
Subtotal — 496
(3) Administration costs (1) Costs for establishing and operating environmental management system 0 151
(2) Costs for environmental information disclosure and advertising — 1
(3) Costs for environmental impact monitoring 0 53
(4) Costs for environmental education for employees — 37
(5) Costs for preserving the natural environment, greening, beautification, landscape conservation, etc. at and in the neighborhoods of facilities and sites — 190
Subtotal 0 433
(4) R&D costs (1) R&D costs for developing products that contribute to environmental protection — —
(2) R&D costs for reducing environmental impact in manufacturing of products, etc. — —
(3) R&D costs for reducing environmental impact in other areas, including distribution and sale of products 0 2
Subtotal 0 2
(5) Social activity costs (1) Costs for preserving the natural environment, greening, beautification, landscape conservation, etc. in areas other than at and in the neighborhoods of facilities and sites 8 3
(2) Costs for donations to and support for environmental protection groups — —
(3) Costs for social initiatives, including supporting the environmental activities of and disclosing information to local communities — —
Subtotal 8 3
(6) Environmental remediation costs (1) Costs for nature restoration — —
(2) Costs for compensation regarding environmental protection — —
(3) Reserves and insurance for response to environmental damage — 3
Subtotal — 3
Total 1,533 4,577

Annual Investments and Costs for Environmental Protection

Breakdown of Costs 2023 2024 2025
Invest-
ments		 Costs Invest-
ments		 Costs Invest-
ments		 Costs
Millions of yen Millions of yen Millions of yen Millions of yen Millions of yen Millions of yen
(1) Business area costs (1)-1 Pollution prevention costs 813 850 4,122 1,222 643 1,523
(1)-2 Global environmental protection costs 963 1,116 3,880 1,888 875 1,790
(1)-3 Resource recycling costs 8 340 69 277 7 327
Subtotal 1,784 2,306 8,071 3,388 1,525 3,640
(2) Upstream and downstream costs — 8 — 14 — 496
(3) Administration costs 0 336 9 423 0 433
(4) R&D costs 0 3 0 2 0 2
(5) Social activity costs 0 0 0 0 8 3
(6) Environmental remediation costs — 3 — 3 — 3
Total 1,784 2,656 8,080 3,830 1,533 4,577

Standards for Calculating Environmental Performance Indicators

<The boundary of calculation>
The boundary of calculation covers the entire consolidated group.
However, with respect to data for which the boundary of calculation is different, notes are described individually.

<Calculation period> January - December 2025

Energy Consumption and CO2 emissions from energy consumption

Environmental performance indicator Unit Calculation method*1
Electricity GJ Converted heating value for electricity purchased from electric power suppliers (kWh)
Not including renewable energy generated on business sites
Sustainable electricity GJ Converted heating value for electricity derived from renewable sources purchased from electric power suppliers (kWh), converted heating value of the purchase volume of Green Power Certificates (kWh) and the purchase volume of Non-Fossil Fuel Certificates (kWh)
Non sustainable electricity GJ Converted heating value for electricity derived from non-renewable sources purchased from electric power suppliers (kWh)
Heat GJ Heat purchased (industrial steam, cold water)
Fuel Oil GJ Converted heating value for fuel oil (kL) purchased
Diesel GJ Converted heating value for diesel (kL) purchased, including fuel for company vehicles in Japan
Gasoline GJ Converted heating value for gasoline (kL) purchased, including fuel for company vehicles in Japan
City gas GJ Converted heating value for city gas purchased from gas suppliers (thousand m3)
LPG GJ Converted heating value for LPG (kg) purchased from gas suppliers
Total energy consumption TJ Converted heating value for total purchased energy (electricity, heat, fuel oil, diesel, gasoline, city gas, LPG)
Renewable energy TJ Converted heating value for total purchased renewable energy (electricity)
Non renewable energy TJ Converted heating value for total purchased non renewable energy (electricity, heat, fuel oil, diesel, gasoline, city gas, LPG)
CO2 emissions from energy consumption tCO2e Total value of CO2 emissions from energy consumption
  1. *1 Converted heating value = Annual usage × Heating values per unit (for heating values per unit refer to “GHG Emission Factors”)
    Emission Factors used for CO2 emissions refer to “GHG Emission Factors”

Renewable Energy Consumption

Environmental performance indicator Unit Calculation method
Solar power MWh Total consumption of solar power energy generated on business sites
Sustainable electricity purchased MWh Total consumption of renewable energy purchased from the power companies (and purchase volume of Green Power Certificates and Non-fossil Fuel Certificates)

Purchase volume of Green Power Certificates and Non-Fossil Fuel Certificates

Environmental performance indicator Unit Calculation method
Purchase volume of Green Power Certificates MWh Total purchased volume of environmental value through Green Power Certificates purchased from electric power suppliers
Purchase volume of Non-Fossil Fuel Certificates MWh Total purchased volume of environmental value through Non-Fossil Fuel Certificates

Greenhouse Gas Emission

Environmental performance indicator Unit Calculation method*1
Scope 1 tCO2e Total of CO2 equivalent emissions from fuel purchased at business sites, fuel of company vehicles in Japan, fluorocarbons leakage, and atmospheric emissions of CO2 used at business sites
Scope 2 tCO2e Total CO2 emissions associated with power and heat purchases calculated using the market-based method or the location-based method
  1. *1 Emission factors used for CO2 emissions refer to “GHG Emission Factors”
    GHG emissions quantification is subject to uncertainty when measuring activity data, determining emission factors, and considering scientific uncertainty inherent in the Global Warming Potentials.

GHG Emission Factors

Calculation of Scope 1 and Scope 2

Standards Type of energy, etc. Heating value per unit (A) Emission Factors (B) CO2 emission Factors
(A)×(B)×44/12
Scope 1 (Energy sources)*1 Fuel oil 38.9 GJ/kL 0.0193 t-C/GJ 2.75 t-CO2/kL
Gasoline 33.4 GJ/kL 0.0187 t-C/GJ 2.29 t-CO2/kL
Diesel 38.0 GJ/kL 0.0188 t-C/GJ 2.62 t-CO2/kL
LPG 0.0501 GJ/kg 0.0163 t-C/GJ 0.00299 t-CO2/kg
City gas 40.0 GJ/thousand m3 — — By gas suppliers t-CO2/thousand m3
Scope 2 Market-based method Electricity*2 0.00864 GJ/kWh — — Domestic: By electric power company
Overseas: By country		 t-CO2/kWh
Heat (cold water)*2 1.19 GJ/GJ — — 0.0532 t-CO2/GJ
Heat (industrial steam)*2 1.17 GJ/GJ — — 0.0654 t-CO2/GJ
Location-based method Electricity*2 0.00864 GJ/kWh — — Domestic: National average emission factors for Okinawa only, emission factors for general power transmission and distribution companies
Overseas: By country		 t-CO2/kWh
Heat (cold water)*2 1.19 GJ/GJ — — 0.0532 t-CO2/GJ
Heat (industrial steam)*2 1.17 GJ/GJ — — 0.0654 t-CO2/GJ
Scope 1 (non-energy sources)*3 Fluorocarbons, etc. Method of calculation: CFCs, HCFCs, HFCs, PFCs and other different greenhouse gases (Refill amount - Collection amount) multiplied by global warming potential
  1. *1 Scope 1 (Energy Source): List of Calculation Methods and Emission Factors for Calculation, Reporting, and Publication in Accordance with the Act on Promotion of Global Warming Countermeasures (partially revised on July 11, 2024)
    CO2 Emission Factors for each city gas suppliers for city gas（For calculation of GHG emissions by specific emitters）-FY2024 results- Published by the Ministry of the Environment and the Ministry of Economy, Trade and Industry on June 30, 2025
  2. *2 Scope2 : [Heating value per unit for electricity] The Enforcement Regulations for the Act on the Rational Use of Energy and Shift to Non-fossil Energy
    [CO2 Emission Factors for electricity]
    <Domestic> CO2 Emission Factors for each electricity suppliers -FY2024 results- Published by the Ministry of the Environment and the Ministry of Economy, Trade and Industry on January 9, 2026
    <Overseas> IEA Emission Factors 2025: CO2 emissions per kwh of electricity only (gCO2/kWh) Emission factors by country (IEA, International Energy Agency)
    [CO2 Emission Factors for heat]
    List of Calculation Methods and Emission Factors for Calculation, Reporting, and Publication in Accordance with the Act on Promotion of Global Warming Countermeasures
  3. *3 Scope 1 (non-energy sources) : Types set forth by the Minister of the Environment and the Minister of Economy, Trade and Industry based on the provisions of Article 1, Paragraph 3 of the Ordinance for Enforcement of the Act on Rational Use and Appropriate Management of Fluorocarbons (March 30, 2023 Extra Edition, Ministry of Economy Trade and Industry, Ministry of the Environment Notification No. 3)
    Guidelines for Calculating and Reporting Greenhouse Gas Emissions (Ver. 6.0)

Calculation of scope 3

Category Calculation method & CO2 Emissions intensities*1 Boundary
1 Purchased Goods and Services Calculated multiplying the purchase price of raw materials and purchased goods by the emission factor
However if the top 10 companies in the purchase amount has disclosed CO2 emissions for Scope 1 and Scope 2, then multiply by the reduction rate from the base year to reflect the Contract Manufacturing Organization(CMO)’s reduction efforts.
(CO2 emissions calculated from the purchase amount in the base year) × (CMO’s total emissions in the applicable year)/(CMO’s total emissions in the base year) × (the purchase amount in the applicable year)/(the purchase amount in the base year)		 Purchase of raw materials and goods
<The boundary of calculation>
  • CHUGAI PHARMACEUTICAL CO., LTD.
  • Chugai Pharma Manufacturing Co., Ltd.
2 Capital Goods Calculated by multiplying the acquisition price of tangible fixed assets for which construction and manufacturing has been completed by the emission factor per price of capital goods Acquisition price of tangible fixed assets for which construction and manufacturing have been completed
<The boundary of calculation>
  • Organizations within all boundaries of calculation
3 Fuel- and Energy-Related Activities Not Included in Scope 1 or Scope 2 Calculated multiplying consumption of electricity, heat, fuel oil, diesel, gasoline, city gas and LPG by the emission factor Energy Consumption
<The boundary of calculation>
  • Organizations within all boundaries of calculation
4 Upstream transportation and distribution Calculated using the “Manual for Calculating and Reporting Greenhouse Gas Emissions (Ver. 5.0): ton-kilometer method” based on transportation ton-kilometers (t-km)
Railway: 22g-CO2/t-km
Ship: 39g-CO2/t-km
Air: 1,490g-CO2/t-km
Truck: 0.0589L/t-km × 2.619t-CO2/kL ÷ 1,000
(Fuel consumption per ton-kilometer of truck transport is calculated by using the average loading rate of 10-ton freight truck for commercial use/other.)
Of the CO2 emissions from the outsourced warehouse, CO2 emissions from the portion occupied by our company are calculated.		 Vehicle transportation of products from distribution centers to wholesaler warehouses and domestic airports
Air and ship transportation for import and export of products, intermediates, raw materials, etc.
The amount equivalent of the CO2 emissions from the outsourced warehouse area occupied by our company
<The boundary of calculation>
  • CHUGAI PHARMACEUTICAL CO., LTD.
  • Chugai Pharma Manufacturing Co., Ltd.
5 Waste generated in operations Calculated multiplying the amount of waste generated by the emission factor defined by types of waste and treatment method (including the waste transport stage) Industrial waste
<The boundary of calculation>
  • Organizations within all boundaries of calculation.
    However, excluding overseas sales companies
6 Business travel Calculated multiplying passenger-kilometers by the emission factor per passenger-kilometer by each mode of transportation Business travel using aircraft (domestic/overseas)*2
<The boundary of calculation>
  • CHUGAI PHARMACEUTICAL CO., LTD.
  • Chugai Pharma Manufacturing Co., Ltd.
  • Chugai Research Institute for Medical Science, Inc.
  • Chugai Clinical Research Center Co., Ltd.
  • Chugai Business Solution Co., Ltd.
7 Employee Commuting Calculated multiplying the number of employees by work type and city classification by the number of work days and the emission factor Commuting of domestic employees
<The boundary of calculation>
  • CHUGAI PHARMACEUTICAL CO., LTD.
  • Chugai Pharma Manufacturing Co., Ltd.
  • Chugai Research Institute for Medical Science, Inc.
  • Chugai Clinical Research Center Co., Ltd.
  • Chugai Business Solution Co., Ltd.
9 Downstream transportation and distribution Calculated by multiplying the sales price to domestic wholesalers by the emission factor Transportation from domestic wholesalers to hospitals
<The boundary of calculation>
  • CHUGAI PHARMACEUTICAL CO., LTD.
  • Chugai Pharma Manufacturing Co., Ltd.
12 End-of-Life Treatment of Sold Products Calculated multiplying the amount of specified containers and packaging usage which is eligible for the Survey of Use and Production of Containers and Packaging by emission factors by waste type The amount of specified containers and packaging usage which is eligible for the Survey of Use and Production of Containers and Packaging
<The boundary of calculation>
  • CHUGAI PHARMACEUTICAL CO., LTD.
  • Chugai Pharma Manufacturing Co., Ltd.
15 Investments CO2 emissions from energy consumption of joint research companies. Energy consumption of joint research companies
<The boundary of calculation>
  • CHUGAI PHARMACEUTICAL CO., LTD.
  1. *1 The database on emissions unit values for calculation of greenhouse gas emissions, etc., by organizations throughout the supply chain (ver.3.5)
    IDEAv2.3(For calculating the supply chain greenhouse gas emissions)
  2. *2 Calculation of the point-to-point distance on a GRS80 global reference ellipsoid using the latitude and longitude of the departure and arrival airports*3, *4
  3. *3 Global airports (Last Updated October 11, 2013), Open Knowledge International,
    https://datahub.io/core/airport-codes
    and latitude and longitude confirmed using Google Maps
  4. *4 Distance and direction as calculated by the Geospatial Information Authority of Japan
    https://vldb.gsi.go.jp/sokuchi/surveycalc/surveycalc/bl2stf.html
  5. GHG emissions quantification is subject to uncertainty when measuring activity data, determining emission factors, and considering scientific uncertainty inherent in the Global Warming Potentials.

Industrial waste generation

<The boundary of calculation>
Domestic Research Laboratories: CHUGAI PHARMACEUTICAL CO., LTD. Ukima Research Laboratories (Ukima site), Chugai Life Science Park Yokohama
Domestic Plants: Chugai Pharma Manufacturing Co., Ltd.(CPMC) Ukima Plant (Ukima site), Fujieda Plant, Utsunomiya Plant
Domestic Offices: CHUGAI PHARMACEUTICAL CO., LTD. Head Office, Branches (34 branches including 7 supervising branches), Offices (32 offices)
Overseas Research Laboratories: Chugai Pharmabody Research Pte. Ltd. (CPR)
Overseas Plants: Chugai Pharma Technology Taizhou Co. Ltd.(CPTT)
(Waste generated using the wide-area certification system is counted only for domestic research and domestic production sites.)

Environmental performance indicator Unit Calculation method
Generated tonnes Total industrial waste generation at sites and facilities
Disposed tonnes Total industrial waste incinerated without recycling which was outsourced to external contractors for processing
Landfilled tonnes Total waste landfilled after incineration. Calculated by multiplying the amount of waste disposed by the incineration factor. (All non-recyclable waste is incinerated and is not directly landfilled.)
Recycled tonnes Total industrial waste recycled which was outsourced to external contractors for processing

Trading volume of valuables

Environmental performance indicator Unit Calculation method
Reuse tonnes Total amount of used products (materials or items) to be used again in their original form, sold as valuables for use wholly or partly as spare components or other parts of products
Recycle tonnes Total amount of used products sold as valuables, which are subjected to undergo some form of treatment (physical, chemical, or biological process) to transform them into useful items again

Water Use/Wastewater

<The boundary of calculation>
Domestic Research Laboratories: CHUGAI PHARMACEUTICAL CO., LTD. Ukima Research Laboratories (Ukima site), Chugai Life Science Park Yokohama
Domestic Plants: Chugai Pharma Manufacturing Co., Ltd. (CPMC) Ukima Plant (Ukima site), Fujieda Plant, Utsunomiya Plant
Overseas Research Laboratories: Chugai Pharmabody Research Pte. Ltd. (CPR)
Overseas Plants: Chugai Pharma Technology Taizhou Co. Ltd.(CPTT)

Environmental performance indicator Unit Calculation method
Total water use thousand tonnes Total water withdrawn for use at sites or facilities (city water, well water, industrial water and rainwater*1)
Wastewater thousand tonnes Total water discharged to sewer systems or to public water zones
  • The amount of wastewater from domestic usage in Ukima site and Chugai Life Science Park Yokohama are not included in the count
  • As wastewater from overseas Group companies is not measured, the amount of wastewater is deemed to be equivalent to the amount of water withdrawn at these sites.
Amount consumed thousand tonnes Difference between the amount of water withdrawn (total amount of water withdrawn at business sites (city water, well water, industrial water, and rainwater*1)) and the amount of wastewater discharged (total amount of water discharged from business sites into sewer systems and public water zones)
  1. *1 Only the amount input into process and domestic wastewater at the Yokohama Research Institute (Chugai Life Science Park Yokohama) is counted as rainwater.

Air pollutants emissions

<The boundary of calculation>
Domestic Research Laboratories: CHUGAI PHARMACEUTICAL CO., LTD. Ukima Research Laboratories (Ukima site), Chugai Life Science Park Yokohama
Domestic Plants: Chugai Pharma Manufacturing Co., Ltd.(CPMC) Ukima Plant(Ukima site),Fujieda Plant, Utsunomiya Plant

Environmental performance indicator Unit Calculation method
Nitrogen oxides (NOx) emissions kg Total amount of NOx emitted from specified facilities under the Air Pollution Control Law.
NOx emissions = concentration of NOx in exhaust gasses × annual exhaust gasses
Sulfur oxides (SOx) emissions kg Total amount of SOx emitted from specified facilities under the Air Pollution Control Law
SOx emissions = concentration of SOx in exhaust gasses × annual exhaust gasses
Soot emissions kg Total amount of soot emissions from specified facilities under the Air Pollution Control Law
Soot emissions = concentration of soot in exhaust gasses × annual exhaust gasses
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Data