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Sustainability Data (Non-Financial Information)

Environmental Management

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
ISO14001 certification rate % Niterra Group 93 96 95 92 97

[Calculation Method] Percentage of employees at ISO 14001 certified locations

Environmental Accounting

Environmental conservation effect

Content of the effect Unit Aggregation range 2024年度 2025年度
Revenue Business revenue from recycling waste generated from business activities or recycling of used products, etc. million yen Niterra Co., Ltd. and Groups in Japan
[with multi-site certification]
749.1 730.8
Cost reduction Energy savings through energy conservation million yen 177.3 172
Saving on water bills through water conservation million yen 5.6 1.5
Resource conservation or reduction of waste disposal costs associated with recycling. million yen 1.4 1.4
Total 933.4 905.6

Environmental conservation effect quantity

Effects within the business area Content of the effect Unit Aggregation range 2024年度 2025年度 Difference from the previous year
The effects of resources invested in business activities Energy consumption Purchased electricity 10,000 kWh Niterra Co., Ltd. and Groups in Japan
[with multi-site certification]
22,472 26,503 4,031
city gas 10,000㎥ 1,038 1,048 10
LPG Ton 5,368 4,976 -392
Water usage Water supply ㎥ 718,033 1,215,436 497,403
well water ㎥ 394,028 382,072 -11,956
Volume of PRTR-listed substances handled Ton 781 1,032 251
Effects on environmental impact and waste generated from business activities Energy CO2 emissions Ton 139,825 149,750 9,925
Amount of waste Effective utilization Ton 9,118 11,201 2,083
Unused amount Ton 140 109 -31
Emissions of PRTR-registered substances Ton 65 65 0

[Calculation Method] Energy consumption and CO2 emissions from energy: Energy consumption and CO2 emissions associated with transportation are not included.

Environmental data

Unit Range EcoVision Standard Values
(2018)
2021年度 2022年度 2023年度 2024年度 2025年度
Water Usage amount 10,000㎥ Niterra Group ー 165 161 146 154 208
(Unit cost) Ten thousand m³/million yen Niterra Group 5.40 4.92 4.40 3.75 3.91 5.26
Emissions 10,000㎥ Niterra Group ー 165 161 146 154 208
Waste Total emissions t Niterra Group ー 22,686 21,188 20,742 20,332 22,470
(Unit cost) t/million yen Niterra Group 0.075 0.068 0.058 0.053 0.051 0.057
Effective use t Niterra Group ー 20,712 19,344 18,711 18,415 21,561
Ineffective use t Niterra Group ー 1,974 1,843 2,196 1,917 909
Effective utilization rate % Niterra Group ー 91.3 91.3 89.5 90.6 96.0
Number of on-site inspections by processing companies cases Niterra Co., Ltd. and Groups in Japan ー 39 63 42 32 34
PRTR target substances Volume handled t Niterra Co., Ltd. and Groups in Japan ー 755.0 865.0 740.5 724.8 1,032.2
Emissions t Niterra Co., Ltd. and Groups in Japan ー 139.1 151.6 85.6 65.0 91.4
(Toluene emissions) t Niterra Co., Ltd. and Groups in Japan ー 129.3 214.8 83.5 63.7 90.9
(Xylene emissions) t Niterra Co., Ltd. and Groups in Japan ー 1.0 1.1 0.4 0.0 0.0
(Other emissions) t Niterra Co., Ltd. and Groups in Japan ー 8.8 6.7 1.8 1.3 0.5
Energy Total consumption MWh Niterra Group ー 823,783 736,554 685,477 705,521 779,087
Non-renewable energy consumption MWh Niterra Group ー 823,783 674,410 600,956 575,907 617,454
(Fuel) MWh Niterra Group ー 338,530 275,900 251,348 255,796 251,239
(Electricity) MWh Niterra Group ー 485,252 398,510 349,608 320,111 366,215
Renewable energy consumption MWh Niterra Group ー 2,024 64,634 93,070 129,614 161,634
(Purchase) MWh Niterra Group ー 0 62,144 84,520 118,726 143,634
(Self-generated power) MWh Niterra Group ー 2,024 2,490 8,549 10,888 18,000
GHG emissions Scope 1 million t-CO2 Niterra Group 6.96 6.44 5.29 4.80 4.58 4.49
Scope 2 million t-CO2 Niterra Group 21.0 20.1 16.1 14.3 14.5 15.9
Scope 1 + Scope 2 million t-CO2 Niterra Group 27.9 26.5 21.4 19.1 19.1 20.3
(Reduction rate compared to FY2018*) % Niterra Group ー -8.2 -26.0 -31.5 -31.7 -31.9
(Unit cost) t-CO2/million yen Niterra Group ー 0.79 0.59 0.49 0.48 0.45

[Calculation method]
Scope 1: Calculated using coefficients from the Act on Promotion of Global Warming Countermeasures.
Scope 2: In Japan, the coefficients of each power company are used for calculation; overseas, the coefficients of each country published by the IEA are used.

*In calculating the reduction rate, the base year emissions are reviewed annually to reflect increases or decreases in group companies.

Details of Scope 3 emissions

Item Unit Range EcoVision Standard Values
(2018)
2021年度 2022年度 2023年度 2024年度 2025年度
1. Purchased goods and services million t-CO2 Niterra Group 115.3 169.03 197.48 179.00 208.04 247.20
2. Capital goods 19.6 11.49 7.86 9.25 13.60 10.80
3. Fuel and energy-related activities (excluding Scope 1 and 2) 4.3 4.60 4.34 4.13 4.15 4.60
4. Upstream transportation and logistics 16.6 15.03 8.75 6.14 6.32 11.20
5. Waste generated from the business 0.6 0.77 0.78 0.91 0.29 0.40
6. Business trip 0.2 0.21 0.21 0.21 0.20 0.20
7. Employees' Commuting 2.0 1.47 1.46 1.45 1.41 1.60
8. Upstream leased assets ー Not applicable
9. Downstream transportation and logistics ー (Included in Category 4)
10. Processing of products for sale ー Not applicable
11. Use of the products sold 970.32 939.95 909.10 749.36 743.50 884.60
12. End-of-production processing for sold products 0.06 0.06 0.06 0.06 0.06 0.10
13. Downstream leased assets ー Not applicable
14. Franchise ー Not applicable
15. Investment ー Not applicable
Total 1,128.9 1,143 1,130 951 978 1,161

[Calculation method]

1: Calculated by multiplying the quantity of procured goods purchased by the corresponding value in the emission intensity database.

2. Calculated by multiplying expenditures for the acquisition of tangible fixed assets and intangible assets (financial statements) by the corresponding value from the "Emission Intensity Database for Calculating Greenhouse Gas Emissions of Organizations Through the Supply Chain."

3. Calculated by multiplying the amount of electricity used by the corresponding value from the "Emission Intensity Database for Calculating Greenhouse Gas Emissions, etc., of Organizations Through the Supply Chain." Calculated by multiplying the amount of gas used by the corresponding value from the "IDEA LCA Database."

4. For domestic transport, the calculation is performed by multiplying the equivalent volume of procurement transport and the volume of shipment transport by the corresponding values from the "Database of Emission Intensity for Calculating Greenhouse Gas Emissions, etc., of Organizations Through the Supply Chain." For international transport, the calculation is performed by multiplying the equivalent volume of procurement transport and the volume of shipment transport by the corresponding values from the "IDEA LCA Database."

5. Calculate by multiplying the waste generation amount by the corresponding value from the "Emission Intensity Database for Calculating Greenhouse Gas Emissions of Organizations Through the Supply Chain" or the "IDEA LCA Database".

6. The calculation is performed by multiplying the number of employees of each corporation by the corresponding value from the "Database of Emission Intensity for Calculating Organizational Greenhouse Gas Emissions, etc., Through the Supply Chain."

7. The estimated fuel consumption, calculated from the number of employees and commuting expenses, is multiplied by the "emission intensity of the Act on Promotion of Global Warming Countermeasures" for gasoline and the corresponding value from the "Emission Intensity Database for Calculating Greenhouse Gas Emissions of Organizations Through the Supply Chain" for other fuels.

11: Calculated by multiplying the energy consumption per unit time of the sold product by the number shipped and the service life. For plugs, the LCA tool of the Japan Auto Parts Industries Association was used; for sensors, the gasoline CO2 emission factor under the Act on Promotion of Global Warming Countermeasures was used; and for other products, the electricity CO2 emission factor of the IEA was used.

12: Calculated by multiplying the estimated product shipment weight by the corresponding value from the "Emission Intensity Database for Calculating Greenhouse Gas Emissions, etc., of Organizations Through the Supply Chain".

Regional emission rates for fiscal year 2025

Item Unit Japan Asia North America South America Europe Africa
Water Usage amount 10,000㎥ 164 29 2 12 1 0
ratio % 79.0 14.0 1.0 5.6 0.3 0.1
Emissions 10,000㎥ 164 29 2 12 1 0
ratio % 79.0 14.0 1.0 5.6 0.3 0.1
Waste Emissions t 12351 4640 1875 2967 584 53
ratio % 55.0 20.7 8.3 13.2 2.6 0.2
CO2 Emissions million t-CO2 221625.3 15781.5 17282.5 1645.8 4840.5 631.7
ratio % 84.7 6.0 6.6 0.6 1.8 0.2

Waste plastic emissions from domestic group companies

Unit Range 2022年度 2023年度 2024年度 2025年度
Plastic waste output t Niterra Co., Ltd. 51.3 40.3 33.2 24.9
SparkTec WKS CO., LTD. 50.1 47.7 52.8 48.6
NTK CERAMIC CO., LTD. 237.1 110.1 27.8 27.8
CERAMIC SENSOR CO., LTD. 101.5 101.5 63.6 55.3
NITTOKU ALPHA SERVICE CO., LTD. 0.9 0.4 0.8 0.9
NTK CERATEC CO., LTD. 31.6 186.9 30.2 37.1
MORIMURA SOFC TECHNOLOGY Co., Ltd. 1.7 1.2 1.8 1.8
CECYLLS 6.9 0.4 1 0
NITTOKU SMILE CO., LTD. 0.2 0.2 0.2 0.1
Niterra Materials ー ー ー 14

Compliance with environmental laws and regulations

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Environmental violations cases Niterra Group 2 2 0 1 2※
Environmental fines yen Niterra Group 0 1 0 0 0
Environmental complaints cases Niterra Group 4 1 1 1 0

*One of these cases exceeded the agreed-upon value with the city.

Design for Environment (DfE)

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Sales ratio of precious metal plugs % Niterra Group 40 43 47 46 46
Sales ratio of all-range air-fuel ratio sensors % Niterra Group 37 39 40 41 43

*The goal is to achieve a sales ratio of "50% or more" for both "precious metal spark plugs" and "all-range air-fuel ratio sensors" by fiscal year 2030.

Human Resource Management

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Number of employees * as of March 31 people Group Consolidated
* IFRS standards
16,145 16,247 15,980 15,644 15,698
people Niterra Co., Ltd. 3,617 3,554 3,431 3,295 3,341
Number of temporary workers * (as of March 31) people Niterra Co., Ltd. 108 121 131 91 93
Average age * as of March 31 Male age Niterra Co., Ltd. 41.5 41.4 42.1 42.7 43.1
Female age Niterra Co., Ltd. 39.6 39.5 40.0 40.7 41.7
Total age Niterra Co., Ltd. 41.0 41.1 41.8 42.3 42.9
Average length of service * (as of March 31) Male year Niterra Co., Ltd. 16.7 19.8 17.8 18.0 17.7
Female year Niterra Co., Ltd. 16.9 17.3 17.1 17.0 16.7
Total year Niterra Co., Ltd. 16.7 19.3 17.7 17.8 17.5
Average annual salary yen Niterra Co., Ltd. 6,725,908 6,896,899 7,690,504 8,473,873 9,221,112
yen Niterra Co., Ltd. (Regular employees excluding those on leave) 7,402,134 7,631,714 8,313,518 9,121,251 9,516,320
yen Niterra Co., Ltd. (Regular employees excluding limited-area employees, employees working shorter hours, and employees on leave). 7,737,761 7,990,375 8,940,448 9,874,069 9,929,045
Number of people leaving the company Male people Niterra Co., Ltd. 140
(うち転籍者45名)
194
(うち転籍者97名)
206
(うち転籍者87名)
194
(うち転籍者116名)
142
(うち転籍者35名)
Female people Niterra Co., Ltd. 37
(うち転籍者3名)
26
(うち転籍者13名)
30
(うち転籍者3名)
15
(うち転籍者4名)
19
(うち転籍者1名)
Total people Niterra Co., Ltd. 177
(うち転籍者48名)
220
(うち転籍者110名)
235
(うち転籍者90名)
209
(うち転籍者120名)
161
(うち転籍者36名)
Turnover rate Total turnover rate % Niterra Co., Ltd. 4.71 6.27 4.26 5.40 4.82
Voluntary turnover rate % Niterra Co., Ltd. 3.51 3.29 2.97 2.49 2.13
Number of new graduates hired Male people Niterra Co., Ltd. 40 21 29 27 27
Female people Niterra Co., Ltd. 21 13 14 28 7
Total people Niterra Co., Ltd. 61 34 43 55 34
Among them, foreign nationals people Niterra Co., Ltd. 6 2 1 1 5
Number of mid-career hires Male people Niterra Co., Ltd. 30 34 42 34 25
Female people Niterra Co., Ltd. 3 6 11 8 8
Total people Niterra Co., Ltd. 33 40 53 42 33
Among them, foreign nationals people Niterra Co., Ltd. 0 0 2 2 2
We are hiring for management positions. people Niterra Co., Ltd. 8 13 12 11 11
Employee engagement Response rate % Niterra Co., Ltd.,
and Groups in Japan
87.6 92.6 96.3 96.2 97.7
Overall satisfaction level (out of 5 points) point Niterra Co., Ltd.,
and Groups in Japan
3.30 3.33 3.46 3.48 3.50

[Calculation Method] Average age and average length of service: As of March 31st. Calculated for full-time employees only.

Average annual salary: including bonuses and non-base pay.

Turnover rate (total turnover rate): Calculated from the total number of employees who leave the company, including those who retire.

Employee turnover rate (voluntary resignation rate): Calculated from the number of employees who leave the company for personal reasons.

Human Resource Development

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Average training hours time Niterra Co., Ltd.,
and Groups in Japan
4 11 12 13 14
Average amount spent yen Niterra Co., Ltd.,
and Groups in Japan
10,809 14,641 22,378 23,018 41,018

[Calculation Method] This method covers training programs organized by the Human Resources Department (hierarchical training, global training, etc.).

Diversity

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Full-time employee Male people Niterra Co., Ltd. 3,017 2,947 2,832 2,684 2,698
Female people Niterra Co., Ltd. 600 607 599 611 643
Female ratio % Niterra Co., Ltd. 16.6 17.1 17.5 18.5 19.2
Management position
(Core position) *1
Male people Niterra Co., Ltd. 780 672 713 716 717
Female people Niterra Co., Ltd. 26 35 41 42 42
Female ratio % Niterra Co., Ltd. 3.23 4.95 5.44 5.54 5.53
Percentage of female managers, foreign nationals, and mid-career hires*2 % Niterra Co., Ltd. 17.0 19.9 24.9 26.4 26.9
% Niterra Co., Ltd. and Groups in Japan ー ー ー ー 27.0
Section Chief level Male people Niterra Co., Ltd. 1,024 968 955 1,008 1,000
Female people Niterra Co., Ltd. 47 48 58 64 64
Female ratio % Niterra Co., Ltd. 4.39 4.96 5.73 5.97 6.02
Equivalent to a generalist position Male people Niterra Co., Ltd. 1,383 1,209 1,050 998 985
Female people Niterra Co., Ltd. 255 217 247 254 253
Female ratio % Niterra Co., Ltd. 15.6 15.2 19.0 20.3 20.4
Employment rate for people with disabilities % Niterra Co., Ltd., SparkTec WKS, CERAMIC CENSOR, NTK CERAMIC, Niterra Advanced Ceramic, NTK CERATEC, NITTOKU SMILE, Niterra Materials 2.36 2.59 2.75 2.71 2.70
Employees
Age group
Under 30 % Niterra Co., Ltd. 17 16 14 12 11
30 years old and over, under 50 years old % Niterra Co., Ltd. 61 59 60 60 61
Over 50 years old % Niterra Co., Ltd. 22 25 26 28 28
Continued Employees people Niterra Co., Ltd. 132 120 149 138 143

[Calculation method]
Regular employees: Includes those seconded to group companies.
Managerial positions, section chief level, and generalist positions: Includes employees seconded to group companies and those whose employment continues.
Employment rate for persons with disabilities: Includes employees seconded to group companies and employees of special subsidiary companies.

Employee age range: Includes employees seconded to group companies.
Continued employment: Includes employees seconded to group companies.

Calculated as of the end of March. However, for management positions (core positions), the ratio of female, foreign national, and career-hired managers, section chief level, and generalist positions, the calculations for fiscal year 2024 and earlier are as of April 1st of the following year.

*1: The goal is to increase the "percentage of female managers" (on a non-consolidated basis) to 10% or more by fiscal year 2029.
*2: The goal is to increase the "percentage of women, foreign nationals, and career hires in management positions" (consolidated domestic group) to 30% or more by fiscal year 2029.
*For information regarding our management (core) role grading system, please refer to Human Resources Management.

Percentage of women by social class

Unit Range 2022年度 2023年度 2024年度 2025年度
Directors
(As of April 1st)
% Niterra Co., Ltd. 36.0 36.4 36.4 27.3
Excutive officers and Corporate officers
(As of April 1st)
% Niterra Co., Ltd. 0.00 3.57 3.84 3.57
All Managers
(As of April 1st of the following year until fiscal year 2023; as of March 31st from fiscal year 2024 onwards)
% Niterra Co., Ltd. 4.95 5.44 5.66 5.53
Senior Managers
(As of April 1st of the following year until fiscal year 2023; as of March 31st from fiscal year 2024 onwards)
% Niterra Co., Ltd. 3.26 3.03 2.45 2.01
Supervisors
(As of April 1st of the following year until fiscal year 2023; as of March 31st from fiscal year 2024 onwards)
% Niterra Co., Ltd. 4.96 5.73 5.84 6.02

Gender wage gap in domestic group companies in fiscal year 2025

Unit Range Wage differences between men and women in regular employment Wage differences between men and women in non-regular employment Gender wage gap for all workers
Gender wage gap % Niterra Co., Ltd. 67.2% 92.9% 68.4%
SparkTec WKS CO., LTD. 76.3% 96.3% 77.2%
CERAMIC SENSOR CO., LTD. 72.9% 82.5% 74.1%
NTK CERATEC CO., LTD. 67.5% 67.7% 65.0%
NTK CERAMIC CO., LTD. 61.1% 60.7% 52.2%
Niterra Advanced Ceramic Co., Ltd. 70.8% 85.0% 71.7%
Niterra Materials 79.3% 102.1% 81.3%

*1: Wages include all payments made by the employer to the employee for the work performed. Severance pay and commuting allowances are excluded.

*2: For regular employees, seconded employees are included in the original company that pays their wages.

*3: Non-regular employees include those rehired after retirement, part-timers, contract employees, and commissioned workers, but exclude dispatched workers.

*4: The target companies are domestic consolidated subsidiaries with 101 or more regularly employed workers.

Work-Life Balance

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Childbirth and childcare Employees taking maternity leave people Niterra Co., Ltd. 30 23 26 25 30
Male employees taking childcare leave people Niterra Co., Ltd. 24 55 69 66 82
Average number of days taken (male) day Niterra Co., Ltd. ー ー ー ー 88
Female employees taking childcare leave people Niterra Co., Ltd. 35 25 24 24 33
Average number of days taken (female) day Niterra Co., Ltd. ー ー ー ー 305
Childcare leave utilization rate (women) % Niterra Co., Ltd. ー 100 100 100 100
Return-to-work rate after childcare leave % Niterra Co., Ltd. 94 98 100 100 98
Childcare short-time work system
User
people Niterra Co., Ltd. 23 26 17 21 22
Nursing care Employees taking caregiving leave people Niterra Co., Ltd. 2 2 1 1 3
Users of the reduced working hours system for caregiving people Niterra Co., Ltd. 1 1 0 1 0
Users of the reduced working hours system for reasons other than childcare or elder care. people Niterra Co., Ltd. 4 4 3 4 14
Working hours Standard working hours Time/Year/Person Niterra Co., Ltd. 1,899 1,899 1,899 1,899 1,899
Actual working hours Time/Year/Person Niterra Co., Ltd. 1,955 1,834 1,848 1,830 1,889
Average monthly overtime hours Hours/Month Niterra Co., Ltd. 11 15 15 15 13
Paid holiday Number of days granted day Niterra Co., Ltd. 19.5 19.5 ー 19.5 19.4
Number of days obtained day Niterra Co., Ltd. 15.0 15.0 ー 16.0 17.0
Acquisition rate % Niterra Co., Ltd. 75.6 76.8 ー 82.5 87.6
Labor union membership rate * (as of March 31) % Niterra Co., Ltd. Spark Tech WKS, NTK Ceratec, NTK Ceramics, Niterra Advanced Ceramics, Niterra AQUA 94 98 100 100 100

[Calculation method]

Number of employees taking maternity, childcare, or family care leave: Number of employees who started leave during the fiscal year.

Return-to-work rate after childcare leave: The percentage of people who returned to work after their childcare leave period expired during the fiscal year.

Users of the childcare/elderly care short-time work system: Number of people who newly started using the system during the fiscal year.

Working hours: Excluding employees seconded to group companies and those on leave of absence.

Paid leave: Calculated based on a fiscal year from October to September of the following year (e.g., the 2019 fiscal year is the one year from October 2019 to September 2020).
Excluding employees seconded to group companies and those on leave of absence.

The rate at which men in our domestic group companies take childcare leave.

Unit Range *2 2022年度 2023年度 2024年度 2025年度
Rate of men taking paternity leave % Niterra Co., Ltd. 52 60 78 83
SparkTec WKS CO., LTD. 34 45 55 65
CERAMIC SENSOR CO., LTD. 65 50 75 75
NTK CERATEC CO., LTD. 47 55 63 60
NTK CERAMIC CO., LTD. 25 67 100 67
NANSEI CERAMIC CO., LTD. ー ※1 ー ※1 50 100

*1: Not listed because the number of men whose spouse gave birth was zero.

*2: The target companies are domestic consolidated subsidiaries with 101 or more regularly employed workers.

[Calculation method]

The percentage of men taking paternity leave (%) = (Number of men who took paternity leave, etc.) ÷ (Number of men whose spouses gave birth) × 100

Occupational Health and Safety

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
ISO45001 certification rate % Niterra Group 48.4 72.2 88.2 96.8 97.3

[Calculation Method] Percentage of employees at ISO 14001 certified locations

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Total accident frequency rate ー Niterra Co., Ltd.
(Including temporary staff)
0.90 0.42 0.69 1.04 0.59
ー Group companies ー 2.24 2.83 2.83 2.58
Loss of work due to injury frequency Total ー Niterra Co., Ltd. 0.13 0.00 0.14 0.30 0.29
Employee ー Niterra Co., Ltd. 0.13 0.00 0.14 0.30 0.29
Temporary worker ー Niterra Co., Ltd. 0.00 0.00 0.00 0.00 0.00
Occupational illness frequency rate ー Niterra Co., Ltd.
(Including temporary staff)
0.00 0.00 0.00 0.14 0.00

[Calculation method]

Total accident frequency rate: Total number of accident victims per 1 million working hours

Total accident frequency rate = Total number of victims of work-related accidents ÷ Total working hours × 1 million hours

Lost-of-work injury frequency rate: Number of lost-of-work injuries per 1 million working hours.

Loss of work due to injury/disability = Number of victims of injury/disability due to injury/disability ÷ Total working hours × 1 million hours

Occupational illness frequency rate: Number of employees absent from work due to occupational illness per 1 million working hours.

Occupational illness rate = Number of employees absent due to occupational illness* ÷ Total working hours × 1 million hours

* "Occupational illness" refers to heatstroke, lower back pain, chemical poisoning, and other occupational illnesses as defined by the Ministry of Health, Labour and Welfare.

Number of work-related accidents

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Loss of work due to injury cases Niterra Co., Ltd. 1 0 1 2 2
Group companies 7 12 12 8 8
Overseas group companies 24 8 8 14 21
Non-working injuries cases Niterra Co., Ltd. 6 3 4 5 2
Group companies 10 15 17 22 22
Overseas group companies 8 6 4 9 8

Number of work-related fatalities

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Number of fatalities Employee people Niterra Group 0 0 0 0 0
Contractor people 0 0 0 0 0

Number of participants in occupational safety and health-related training

Unit Range 2022年度 2023年度 2024年度 2025年度
Participants in safety and health training programs by hierarchical level Safety and health training for employees in their third year of service. people Niterra Co., Ltd. and Groups in Japan 295 140 121 100
Safety and health training for employees with 10 years of service. 240 145 161 140
Safety and health training for section chiefs and supervisors 110 220 184 140
Safety and health training for newly appointed managers 70 72 71 59
Participants in safety and health specialist training Chemicals education for workers 73 128 94 140
Chemical Substances Education for Administrators 86 130 129 92
Total 874 835 760 671

Product quality

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Number of recalled vehicles stand Niterra Group 0 0 0 0 0
Costs incurred due to recalls implemented in the relevant fiscal year. yen 0 0 0 0 0
Number of vehicles that were forcibly recalled stand 0 0 0 0 0
The ratio of recall costs to annual revenue. % 0 0 0 0 0

Social Contribution

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Cash donation million yen Niterra Group 464.8 476.7 967.1 846.3 1,009.0
Time: Employee volunteers during working hours 10.6 38.1 20.1 8.7 46.1
In-kind donations: Donations of products or services, etc. 11.3 65.6 4.0 16.6 39.7
Management costs 0.01 7.11 0.00 0.00 7.40
Total 486.7 587.6 991.2 871.6 1,102.2

Communication with Stakeholders

Stakeholders Communication Main initiatives Dates, frequency, number of participants, etc. / Annual
2022年度 2023年度 2024年度 2025年度
Shareholders and investors In addition to complying with legal disclosure standards, we will promptly disclose information to various media outlets and publish it on our website. ● Holding of the Ordinary General Meeting of Shareholders June June June June
● Individual meetings with institutional investors and securities analysts 235 times* 279 times* 281 times* 330 times*
● Earnings briefing for institutional investors and securities analysts 2回 2回 2回 2回
● Earnings conference call for institutional investors and analysts 4 times
(Total of 310 people)
4回
(延べ402名)
4回
(延べ394名)
4回
(延べ417名)
● ESG briefing for institutional investors and securities analysts 1回 1回 0回 1回
● Online briefing session for individual investors 1 time
(724 people in total)
2回
(延べ2,260名)
1回
(延べ315名)
0回
● Issuance of shareholder newsletters 1回 1回 1回 1回
● Issuance of an integrated report September September September September
● Information dissemination via website From time to time
Customer To ensure that you can purchase and use our products and services with confidence, we strive to provide information from the customer's perspective on our website, at exhibitions, and other venues. ● Communication through sales activities From time to time
● Disseminating information via website (products, events, etc.) From time to time
● Product and technology explanations at exhibitions From time to time
● Communication at event venues such as races From time to time
Our business partners To build a trusting and healthy partnership with our business partners and to grow together, we conduct activities such as company policy briefings throughout the supply chain. ● Communication through daily procurement activities From time to time
● Holding of company policy briefing sessions May May May May
● On-site practical training and seminars 7 courses 11 courses 13 courses 12 courses
Local community At our offices around the world, we respect local cultures and customs, strive to communicate smoothly with local communities, and, as members of society, aim to create a comfortable society by participating in various social contribution activities. ● Communication through informal meetings and events From time to time
● Participation in local events (festivals, etc.) From time to time
● Conducting cleaning activities From time to time
(Total of 459 people)
随時
(延べ511名)
From time to time
(Total of 408 people)
随時
(延べ214名)
● Accepting factory tours related to the environment From time to time
(Total of 188 people)
随時
(延べ589名)
随時
(延べ685名)
From time to time
(189 people)
● Discussion meeting on environmental issues From time to time
(Total of 5 people)
随時
(延べ20名)
随時
(延べ6名)
From time to time
(6 people)
● Communication through culture and sports ー ー ー ー
・NGK Spark Plugs Suzuka 2&4 Race April April March ー
・Niterra Co., Ltd./ FC Gifu Children's Soccer School September December January ー
・Family musical at Niterra Hall December December December December
・Marathon Festival Nagoya, Aichi March March March March
● Information dissemination via website (environmental information, etc.) From time to time
Employee To maintain a safe and healthy work environment and to ensure that employees can work with enthusiasm, management actively visits the workplace and makes an effort to engage in dialogue. ● Daily work and workplace communication From time to time
● Publication of company newsletter Web: Anytime Web: Anytime Web: Anytime Web: Anytime
● Holding of various labor-management consultation meetings From time to time
● Utilizing the Corporate Ethics Helpline (for employees) 97 items
reception
111 items
reception
107 items
reception
125 items
reception
● Implementation of various training programs From time to time
● Conducting employee satisfaction surveys All employees
October to November
All employees
October to December
All employees
October to November
All employees
november

*Details of individual meetings with institutional investors and securities analysts in FY2025

[By conversation partner]

Dialogue partner Number of times
Securities analyst 57回
Domestic institutional investors 69回
Overseas institutional investors 204回
Total 330回

[By person handling the case]

Respondent Number of times
President 27回
Member of the Board 67回
Sustainability Department 2回
IR department 234回
Total 330回

Corporate Governance

Board of Directors meeting status

Unit Range 2022年度 2023年度 2024年度 2025年度 2026年度
Member of the Board Male people Niterra Co., Ltd. 7 7 7 7 8
Female people 4 4 4 4 3
Female ratio % 36 36 36 36 27
Among us, outside directors (independent officers) people 7 7 7 7 7
Ratio of outside directors* % 64 64 64 64 64
Percentage of female and foreign national directors* % 45 45 36 36 27
Average length of service* (as of the shareholders' meeting for the relevant year) year 5.4 5.5 4.8 5.2 4.8
Among them, Audit and Supervisory Committee Members* Male people 2 2 2 2 3
Female people 2 2 2 2 1
Female ratio % 50 50 50 50 25
Among us, outside directors (independent officers) people 3 3 3 3 3
Board of Directors Number of times held times 12 13 12 12 ー
Average attendance rate % 99 97 100 100 ー

*Our goal is to increase the ratio of outside directors to one-third or more and the ratio of female and foreign directors to 30% or more by fiscal year 2030.
*We transitioned to a company with an Audit and Supervisory Committee in fiscal year 2022.

Remuneration and Bonus Paid to Members of the Board in fiscal year 2025

Total remuneration
(million yen)
Total remuneration by type
(million yen)
Number of recipients
((persons)
Fixed Remuneration Bonus Performance-linked, stock-based remuneration
Members of the Board
(excluding Audit and Supervisory Committee Members)
490 258 164 67 8
(Outside Directors) 64 64 - - 4
Members of the Board, Audit and Supervisory Committee Members 86 86 - - 4
(Outside Directors) 46 46 3

*1: The following limits are set on the remuneration paid to Members of the Board (excluding Members of the Board who are Audit and Supervisory Committee Members) according to the resolution made at the 125th General Meeting of Shareholders held on June 25, 2025.

Total compensation (excluding total bonuses) Monthly Up to 47 million yen
(Of which, the monthly allowance for outside directors is up to 13 million yen.)
Total bonus amount Annual Up to 260 million yen

Separately, by resolution of the 125th Ordinary General Meeting of Shareholders (held on June 25, 2025), we have established a performance-linked stock compensation system with a limit of 3.4 billion yen for five fiscal years from 2025 to 2039 for our directors (excluding directors who are audit committee members and outside directors) and executive officers (excluding employed executive officers).

*2: The following limits are set on remuneration paid to Members of the Board who are Audit and Supervisory Committee Members according to the resolution made at the 122th General Meeting of Shareholders held on June 24, 2022.

Total compensation (excluding total bonuses) Monthly Within 10 million yen
Total bonus amount Annual Within 10 million yen

*3: "Bonus" falls under "Performance-linked compensation, etc.," and "Performance-linked stock compensation" falls under both "Performance-linked compensation, etc." and "Non-monetary compensation, etc."

*4: The above includes the compensation for one outside director (excluding those who are audit and supervisory committee members) who retired at the conclusion of the 125th Ordinary General Meeting of Shareholders.

For details of the calculation method, please see the Annual Securities Report.

Annual Securities Report

Compliance

Whistleblowing

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Number of internal whistleblowing cases cases Niterra Co., Ltd. and Groups in Japan 32 97 111 107 125

[Calculation Method] Number of consultations and reports received through the Corporate Ethics Helpline

Anti-corruption

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Violations of laws and regulations related to anti-corruption cases Niterra Group 0 0 0 0 0

Political donation

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Political contributions cases Niterra Co., Ltd. 0 0 0 0 0
yen 0 0 0 0 0
Lobbyist cases 0 0 0 0 0
yen 0 0 0 0 0
Business associations cases 0 0 0 0 0
yen 0 0 0 0 0

Appropriate Tax Payment

Tax revenue by country for fiscal year 2025

(Unit: billions of yen)

Country of residence etc. Income amount Amount of net profit (loss) before tax Tax amount payable Amount of tax incurred Number of employees (people)
Japan 6,404 910 219 260 8,153
US 1,791 38 18 19 2,046
Germany 1,461 100 38 35 597
China 741 51 17 15 739
Others 2,806 290 66 91 4711
Total 13,203 1,389 358 420 16,246

*Revenue figures: Sales (including within the group), non-operating income (excluding dividend income within the group).
*Tax amount paid: The amount of corporate tax, etc., paid in the fiscal year ending March 2025.
*Tax amount incurred: The amount of corporate income tax, etc. recorded in the income statement for the fiscal year ending March 2025 (excluding adjustments to corporate income tax, etc. recorded under tax effect accounting).
*Number of employees: As of the end of March 2025

Research and Development

Unit Range 2021年度 2022年度 2023年度 2024年度 2025年度
Research and development expenses million yen Niterra Group 23,685 27,887 27,848 28,144 26,782
Ratio of R&D expenses to sales % 4.82 4.96 4.53 4.31 3.66

[Calculation Method] Includes expenses related to improvements to existing products, applied research, etc., and development costs recorded as intangible assets.