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Data Index
Environment
| 2021 | 2022 | 2023 | 2024 | 2025 | ||
|---|---|---|---|---|---|---|
| CO2 emissions (thousand t-CO2) |
Scope 1 | 265 | 234 | 244 | 253 | 228 |
| Scope 2 | 354 | 294 | 278 | 277 | 265 | |
| Scope 3 | N/A | N/A | N/A | N/A | N/A | |
| Energy consumption (crude oil equivalent, kl) |
206,513 | 171,944 | 171,858 | 161,953 | 170,893 | |
| Electricity consumption (thousand kWh) |
690,767 | 560,300 | 561,969 | 589,335 | 618,785 | |
| Water intake (thousand t) | 12,772 | 12,496 | 12,259 | 12,224 | 220,422* | |
| SOx emissions (Nm3) | 63,064 | 61,312 | 62,939 | 66,032 | 94,725 | |
| NOx emissions (Nm3) | 90,065 | 78,038 | 99,077 | 97,660 | 90,477 | |
| Soot emissions (kg) | 3,492 | 4,518 | 2,508 | 3,781 | 3,319 | |
| PRTR substance emissions (kg) | 21,316 | 17,999 | 12,646 | 14,369 | 15,981 | |
| Number of ISO-certified plants (applicable number/total number) |
ISO 9001 | 5/6 | 5/6 | 5/6 | 5/6 | 5/6 |
| ISO 14001 | 5/6 | 5/6 | 5/6 | 5/6 | 5/6 | |
| ISO 45001 | 2/6 | 2/6 | 3/6 | 4/6 | 4/6 | |
| Plants completed PCB disposal (applicable number/total number) | 1/6 | 1/6 | 2/6 | 5/6 | 5/6 | |
(Scope of calculation:Nippon Denko)
*including water used in hydroelectric power generation
Society
| 2021 | 2022 | 2023 | 2024 | 2025 | |
|---|---|---|---|---|---|
| Total number of employees* | 943 | 950 | 937 | 950 | 964 |
| Number of female employees* | 136 | 139 | 132 | 135 | 135 |
| Number of foreign employees* | 4 | 4 | 4 | 4 | 4 |
| Number of employees with disabilities | 17.5 | 17.3 | 15.6 | 16.0 | 14.0 |
| Percentage of employees with disabilities | 2.5 | 2.48 | 2.20 | 2.14 | 1.85 |
| Percentage of female employees in management positions | N/A | N/A | 0 | 0 | 1.6 |
| Average years of service | 15.1 | 15.9 | 16.3 | 16.5 | 16.6 |
| Average age | 40.2 | 41.5 | 41.6 | 41.7 | 42.2 |
| Number of people who quit for personal reasons | 18 | 14 | 19 | 20 | 24 |
| Percentage of people who quit for personal reasons | 2.4 | 3.0 | 3.0 | 2.6 | 3.0 |
| Number of people hired during the normal hiring period | 5 | 18 | 9 | 16 | 16 |
| Percentage of women hired during the normal hiring period | 66.7 | 12.5 | 44.0 | 12.5 | 18.8 |
| Percentage of gender wage gap（Full-time employees） | 72.6 | 75.7 | 78.7 | 77.0 | 77.7 |
| Percentage of gender wage gap（Non-full-time employees） | 42.4 | 20.7 | 31.4 | 36.8 | 35.8 |
| Number of employees who took childcare leave | 14 | 19 | 20 | 16 | - |
| Percentage of childcare leave taken | 82.4 | 90.5 | 90.9 | 88.8 | - |
| Percentage of childcare leave taken among male employees | - | - | 61.1 | 90.5 | 87.5 |
| Number of employees who took elderly care leave | 0 | 0 | 1 | 0 | 0 |
| Percentage of paid leave taken | 71.8 | 74.5 | 76.0 | 75.6 | 78.6 |
| Total training and education cost (10,000 yen) | 2,426 | 3,686 | 3,809 | 4,100 | 6,448 |
| Number of training hours per person (hrs) | 6.9 | 11.5 | 11.5 | 12.0 | 15.0 |
(* consolidated)
Governance
| 2021 | 2022 | 2023 | 2024 | 2025 | |
|---|---|---|---|---|---|
| Number of Directors | 7 | 7 | 7 | 11 | 10 |
| of which outside Directors | 3 | 3 | 3 | 6 | 5 |
| Directors’ total remuneration and other (millions of yen) | 177 | 190 | 155 | 195 | 209 |
| Number of meetings of the Board of Directors | 18 | 17 | 17 | 18 | 17 |
