To reduce our environmental burden at Tokai Carbon, we not only take
measures required by various laws, but also strive to reduce environmental pollutants based on
our voluntary standards that are stricter than current laws.
For industrial waste, we will focus on improving recycling rates, by thoroughly separating waste
and recycling. In 2024, we have expanded the scope to include Tokai Carbon and its major
domestic and overseas group companies, and set the recycle rate target to 50% or higher*, and
have achieved the target with the recycle rate target to 58.5%. For 2025, the scope of the
target will continue to be consolidated(Tokai Carbon and its major domestic and overseas group
companies)and we will work towards our target of the recycle rate target to 51% or higher.
*Recycle rate (%) = Recycled weight (Recycled weight of waste) / (Weight of generated waste) x
100
To reduce the environmental burden on the atmosphere, we are working to reduce emissions of
nitrogen oxides (NOx), sulfur oxides (SOx), and volatile organic compounds (VOCs). In 2024, we
have expanded the scope to include our consolidated companies (Tokai Carbon and major domestic
and overseas group companies) and have set the targets of "NOx emissions: 3,400 tons or
less/year (base year: 2021)," "SOx emissions: 18,600 tons or less/year (base year: 2021)," and
"VOC emissions: 280 tons or less/year."
As a result, we achieved our targets: NOx emissions: 2,843t/year, SOx emissions: 11,132t/year,
VOC emissions: 167t/year. For 2025, the scope of the target will continue to be
consolidated(Tokai Carbon and its major domestic and overseas group companies)and we will work
towards our targets : NOx emissions: 3,330 t/y or less (2% reduction against 2021), SOx
emissions: 17,670 t/y or less (5% reduction against 2021), VOC (Volatile Organic Compounds): 265
t/y or less (5% reduction against 2022).
At Tokai Carbon, we produce various types of carbon products from raw materials such as pitch, coke, feedstock, natural gas, and so on. To use resources more efficiently, we are making ongoing improvements to our production methods enabling us to produce more products with fewer raw materials.
Tokai Carbon carries out strict control of chemical substances that are hazardous and toxic to human health or to the environment, and is actively engaged in reducing their use. Furthermore, Tokai Carbon has set the following substances as “Prohibited Substances” and prohibits the manufacture and sale of products that contain these Prohibited Substances.
Regulation | Substances |
---|---|
Industrial Safety and Health Act | Substances prohibited from being manufactured, etc. |
Industrial Safety and Health Act | Specified Chemical Substances Group 1 Substances as defined in Appended Table 3 of the Order for Enforcement of Industrial Safety and Health Act |
Act on the Regulation of Manufacture and Evaluation of Chemical Substances | Class I Specified Chemical Substances |
Poisonous and Deleterious Substances Control Act | Specified Poisonous Substances |
Act on the Prohibition of Chemical Weapons and Regulation Regarding Restrictions, etc., of Specified Substances | Specified Substances (Agents listed in Table 1 of the Chemical Weapons Prohibition Act) |
Act on the Protection of the Ozone Layer through the Control of Specified Substances, etc., and Other Measures | Specified substances listed in Annex A and B |
Stockholm Convention on Persistent Organic Pollutants (POPs Convention) | Substances listed in Annex A, B, and C |
Industrial waste generation and treatment(t)
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2021 | 2022 | 2023 | 2024 | |||
---|---|---|---|---|---|---|
Waste Generation | Hazardous* | Tokai Carbon | 58 | 41 | 16 | 112 |
Consolidated | 2,216 | 2,569 | 2,805 | 1,480 | ||
Non-hazardous | Tokai Carbon | 7,177 | 6,318 | 5,241 | 5,967 | |
Consolidated | 36,669 | 43,348 | 43,472 | 36,282 | ||
Recycling amount | Tokai Carbon | 6,245 | 5,596 | 4,812 | 5,719 | |
Consolidated | 19,406 | 20,516 | 24,886 | 22,080 | ||
Recycling Rate | Tokai Carbon | 86.3% | 88.0% | 91.5% | 94.1% | |
Consolidated | 49.9% | 44.7% | 53.8% | 58.5% | ||
Final disposal amount (Amount of landfill waste) | Tokai Carbon | 629 | 535 | 197 | 70 | |
Consolidated | 15,160 | 16,337 | 14,859 | 7,703 | ||
Final disposal rate (Landfill disposal rate) | Tokai Carbon | 8.7% | 8.4% | 3.8% | 1.1% | |
Consolidated | 39.0% | 35.6% | 32.1% | 20.4% |
Generation and disposal of waste plastics (tons)
FY2022 | FY2023 | |
---|---|---|
Amount of waste plastic generated | 263 | 200 |
Recycling rate | 68% | 78% |
Aiming to further improve the recycling rate, we will work on thorough sorting and effective use of waste plastics.
Main materials used (amounts purchased)(t)
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2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
---|---|---|---|---|---|---|---|
Carbon black feedstock | 1,272,844 | 1,125,918 | 777,673 | 1,016,481 | 882,392 | 962,285 | 928,801 |
Calcined coke | 113,569 | 99,376 | 16,643 | 78,266 | 91,453 | 67,207 | 61,697 |
Discharges of Environmentally Hazardous Substances into atmosphere(Unit : tons)
2021 | 2022 | 2023 | 2024 | ||
---|---|---|---|---|---|
NOx emissions | Tokai Carbon | 492 | 554 | 524 | 482 |
Consolidated | 3,401 | 3,253 | 3,099 | 2,801 | |
SOx emissions | Tokai Carbon | 736 | 945 | 986 | 914 |
Consolidated | 18,577 | 17,098 | 15,415 | 11,060 | |
Volatile organic compound (VOC) emissions | Tokai Carbon | 1.1 | 1.2 | 1.1 | 0.7 |
Consolidated | 261 | 276 | 209 | 167 |
Hazardous waste emissions (t)
2019 | 2020 | 2021 | 2022 | 2023 |
---|---|---|---|---|
49 | 316 | 58 | 41 | 16 |