Environment

Greenhouse gas (GHG) emissions

GHG emissions (Scope 1, 2, and 3)（45 companies in the Cosmo Energy Group）*1

  Unit FY2022 FY2023 FY2024 Third Party Verified
Scope 1 emissions CO2 emissions 1,000 tCO2e 7,262 6,876 6,153  
GHG emissions excluding CO2*2 1,000 tCO2e 26 19 23  
Total 1,000 tCO2e 7,287 6,895 6,176  
Scope 2 emissions*3 Purchased electricity 1,000 tCO2e 191 169 189  
Purchased steam 1,000 tCO2e 52 57 66  
Total 1,000 tCO2e 243 226 256  
Scope 1&2 emissions total 1,000 tCO2e 7,528 7,121 6,432  
Scope３emissions Unit FY2022 FY2023 FY2024 Third Party Verified
category 1　Purchased goods and services 1,000 tCO2e 10,306 13,534 13,258  
category 2　Capital goods 1,000 tCO2e 268 224 185  
category 3　Fuel- and energy-related activities 1,000 tCO2e 476 623 588  
category 4　Upstream transportation and distribution*4 1,000 tCO2e 240 305 298  
category 5　Waste generated in operations 1,000 tCO2e 25 39 44  
category 6　Business travel 1,000 tCO2e 1 1 1  
category 7　Employee commuting 1,000 tCO2e 3 5 5  
category 8　Upstream leased assets*5 1,000 tCO2e － － －  
category 9　Downstream transportation and distribution*4 1,000 tCO2e 86 274 142  
category 10　Processing of sold products*5 1,000 tCO2e － － －  
category 11　Use of sold products 1,000 tCO2e 57,979 56,655 55,542  
category 12　End-of-life treatment of sold products 1,000 tCO2e 3,803 4,349 4,176  
category 13　Downstream leased assets 1,000 tCO2e 12 11 12  
category 14　Franchises*5 1,000 tCO2e － － －  
category 15　Investments*4 1,000 tCO2e － 1,199 783  
合計 73,200 77,218 75,032  

Notes:

*1.  Scope of data coverage: Cosmo Energy Holdings Co., Ltd., Cosmo Oil, Cosmo Oil Marketing, Cosmo Energy Exploration & Production, Maruzen Petrochemical, as well as 45 subsidiaries and affiliated companies. In addition, the CO2 emission intensity used for calculation was reviewed in FY2024.

*2.  Reported values according to the Act on Promotion of Global Warming Countermeasures, Aggregate values for CH4 and N2O (HFCs, PFCs, etc. are excluded due to small amounts)

*3.  Calculated value of market-base

*4.  Category 4 and 9 were revised,category 15 was newly calculated, and retroactive calculations were made for FY2023 for prior years.

*5. ー: Not applicable or excluded because applicable items cannot be confirmed.

Scope 1&2 emissions intensity

  Unit FY2022 FY2023 FY2024 Third Party Verified
GHG emissions per unit of consolidated net sales tCO2e/million yen 2.7 2.6 2.3  
Consolidated net sales 1 million yen 2,791,872 2,729,570 2,799,947  
GHG emissions per unit of energy consumption tCO2e/1,000kL-crude oil 2.5 2.6 2.4  
Energy consumption（Crude oil equivalent） 1,000kL-cude oil 2,981 2,749 2,681  
refineries GHG emission intensity kgCO2e/1,000kL 23.49 23.53 23.41  
GHG emissions 1,000 tCO2e 4,153 3,780 3,809  

Scope 3 (Category 11_Use of sold products) CO2 emissions intensity

  Unit FY2022 FY2023 FY2024 Third Party Verified
CO2 emissions from the use of sold products per unit of consolidated net sales tCO2e/million yen 20.77 20.76 19.84  
CO2 emissions from the use of sold products  1,000tCO2e 57,979 56,655 55,542  

CO2 Contribution to reduction

  Unit FY2022 FY2023 FY2024 Third Party Verified
Avoided CO2 emissions based on renewable electricity generation*6 1,000 tCO2e -244 -276 -249  
Avoided CO2 emissions by adding ETBE to gasoline*7 1,000 tCO2e -193 -207 -219  
Total -437 -483 -469  

Notes:

*6. CO2 emissions avoiding by using renewable energy is calculated as negative CO2 emissions (total power generation for the fiscal year concerned multiplied by the emissions intensity of the displaced fossil fuel-based electricity for the fiscal year concerned).

*7. The avoided CO2 emissions resulting from adding ETBE to gasoline is calculated as negative CO2 emissions.

Energy consumption

Energy usage

  Unit FY2021 FY2022 FY2023 Third Party Verified
Petroleum refining business TJ 71,652 66,180 61,646  
Petrochemical business TJ 43,485 39,985 36,175  
Others (sales/office) TJ 421 392 6,109  
Group total（Heat quantity equivalent） TJ 115,558 106,557 103,930  

Energy usage in manufacturing operations, and energy consumption intensity

  Unit FY2022 FY2023 FY2024 Third Party Verified
Petroleum refining business (including storage and research centers) Fuel 1,000 kL crude oil 1,720 1,626 1,641  
Electricity 1,000 kWh 413,203 299,224 357,678  
Steam GJ 523,494 556,963 615,972  
Petrochemical business (including research centers) Fuel 1,000 kL crude oil 1,060 1,009 908  
Electricity 1,000 kWh 72,584 63,923 49,747  
Steam GJ 362,611 332,590 572,456  
Sales Electricity 1,000 kWh 41,657 40,066 38,886  
Officesm Electricity 1,000 kWh 4,895 5,524 5,007  
Total purchased electricity amount Electricity 1,000 kWh 532,339 408,737 451,318  
Renewable energy portion 1,000 kWh 38,968 38,632 40,291  
Energy consumption intensity (petroleum refining)*8 kL crude oil / 1,000 kL 9.17 9.03 9.10  
Energy consumption (petroleum refining) 1,000 kL crude oil 1,621 1,451 1,480  

Note:

*8. Energy consumption intensity = Energy consumption (crude oil equivalent) / Crude oil equivalent processing amount

Energy consumption intensity in transport operations (petroleum business)

  Unit FY2022 FY2023 FY2024 Third Party Verified
Coastal tankers*9, 10 L / thousand t-km ― 14.30 12.86  
Tank trucks*10 L / thousand t-km 35.60 36.44 35.82  

Notes:

*9. Review of the coverage of coastal tankers and retroactively counted for FY2022 and FY2023.

*10. Energy consumption intensity = Energy consumption (crude oil equivalent) / Transport t-km

Office energy consumption*11

  Unit FY2022 FY2023 FY2024 Third Party Verified
Cosmo Energy Holdings and 3 core operating companies*12 1,000 kWh 959 822 825  
group companies 1,000 kWh 3,936 4,702 4,409  
Cosmo Energy Group total 1,000 kWh 4,895 5,524 5,234  

*11. Cosmo Energy Group companies: 45 companies in total.

*12. 3 core operating companies: Cosmo Oil, Cosmo Oil Marketing, and Cosmo Energy Exploration & Production

Environmentally hazardous substances

Air pollutant emissions

  Unit FY2022 FY2023 FY2024 Third Party Verified
Petroleum refining Sulfur oxides (SOx) t 3,196 3,165 3,491  
Nitrogen oxides (NOx) t 2,300 2,336 2,131  
Petrochemicals Sulfur oxides (SOx) t 597 582 558  
Nitrogen oxides (NOx) t 774 790 737  
Volatile organic compound (VOC) emissions t 2,625 2,604 2,599  

Air pollution emission intensity (refineries)

  Unit FY2022 FY2023 FY2024 Third Party Verified
SOx emissions intensity*13 g/kL 17.9 19.5 21.4  
Annual sulfur oxide (SOx) emissions t 3,161 3,127 3,479  
NOx emissions intensity*13 g/kL 12.6 14.0 12.9  
Annual sulfur oxide (NOx) emissions t 2,223 2,244 2,099  

Note:

*13. Emission intensity= Annual emissions / Crude oil equivalent processing amount

Chemical substances released and transferred (PRTR designated substances)

  Unit FY2022 FY2023 FY2024 Third Party Verified
Petroleum refining Atmospheric emissions t 91 98 140  
Wastewater discharge t 3 2 7  
Soil contaminants t 0 0 0  
Total emissions released t 94 100 147  
Total emissions transferred t 432 522 262  
Total t 526 622 409  
Petrochemicals Atmospheric emissions t 253 302 387  
Wastewater discharge t 1 1 2  
Soil contaminants t 0 0 0  
Total emissions released t 255 303 389  
Total emissions transferred t 19 36 38  
Total t 274 339 426  

Number of environmental accidents

  FY2022 FY2023 FY2024 Third Party Verified
Number of oil spills 0 0 0  
Environmental law violations, fines, and penalties None None None  

Note: In FY2024, no complaints were received through the formal environmental complaint handling channel (and no response measures were taken).

Water resource use and discharge

Water intake, discharge and usage

  Unit FY2022 FY2023 FY2024 Third Party Verified
Petroleum refining Industrial water 1,000 t 41,243 41,033 40,027  
Seawater 1,000 t 409,504 398,892 386,067  
Groundwater 1,000 t 284 235 391  
Municipal water 1,000 t 165 179 230  
Total intake 1,000 t 451,196 440,339 426,715  
Total discharge*14 1,000 t 445,532 435,144 420,909  
Total usage 1,000 t 5,664 5,194 5,807  
Petrochemicals Industrial water 1,000 t 19,856 19,214 18,157  
Seawater 1,000 t 88,791 94,341 79,566  
Groundwater 1,000 t 34 28 34  
Municipal water 1,000 t 20 18 18   
Total intake 1,000 t 108,702 113,601 97,776  
Total discharge*14 1,000 t 95,808 101,229 86,153  
Total usage 1,000 t 12,893 12,372 11,623  
Cosmo Energy Group Total Industrial water 1,000 t 61,434 60,482 58,449  
Seawater 1,000 t 498,295 493,233 468,124  
Groundwater 1,000 t 477 358 435  
Municipal water 1,000 t 241 247 324  
Total intake 1,000 t 560,447 554,320 527,332  
Total discharge*14 1,000 t 541,691 536,603 508,749  
Total usage 1,000 t 18,755 17,717 18,583  

Note:

*14. All wastewater is treated and goes to the sea

Wastewater treatment

  Unit FY2022 FY2023 FY2024 Third Party Verified
Wastewater treatment Petroleum refining 1,000 t 12,722 12,897 12,239  
Petrochemicals 1,000 t 4,968 4,649 4,529  
Other（product storage,research centers) 1,000 t 346 230 1,631  
Total 1,000 t 18,037 17,777 18,399  

Water pollution loads

  Unit FY2021 FY2022 FY2023 Third Party Verified
Petroleum refining　 COD loads ｔ 89.6 90.8 90.7  
Nitrogen loads ｔ 44.6 47.5 47.4  
Phosphorus loads ｔ 0.9 0.9  0.9   
Petrochemicals　 COD loads ｔ 61.5 63.0 55.8  
Nitrogen loads ｔ 36.3 30.0 29.2  
Phosphorus loads ｔ 1.4 1.5  1.4  

Water pollution load intensity (refinery)

  単位 FY2022 FY2023 FY2024 Third Party Verified
COD load intensity*15 g/kL 0.51 0.56 0.56  
COD Annual load ｔ 89.5 90.8 90.6  

Note:

*15. Load intensity= Annual load / Crude oil equivalent processing amount

Resource recycling (waste)

Raw material input

  Unit FY2022 FY2023 FY2024 Third Party Verified
Petroleum: Crude oil processing 1,000 kL 20,596 18,568 18,632  
Petrochemicals: Total material input 1,000 t 4,040 3,617 －  

Waste generation and recycling rate

  Unit FY2022 FY2023 FY2024 Third Party Verified
Petroleum refining Industrial Waste generated t 59,068 78,067 72,394  
Waste recycled t 17,837 28,738 23,984  
Final disposal amount t 10 15 79  
Final disposal rate ％ 0.02 0.02 0.11  
Recycling rate ％ 30.2 36.8 33.1  
Petrochemicals Industrial Waste generated t 89,197 76,666 77,900  
Waste recycled t 15,264 9,164 12,041  
Final disposal amount t 183 226 292  
Final disposal rate ％ 0.21 0.30 0.37  
Recycling rate ％ 17.1 12.0 15.5  

Cosmo Energy Group Total

 Industrial Waste generated t 149,580 155,301 159,599  
Waste recycled t 34,259 41,816 45,221  
Final disposal amount t 199 309 475  
Final disposal rate ％ 0.13 0.20 0.30  
Recycling rate ％ 22.9 26.9 28.3  

Industrial waste from plastic product use

Industrial waste from plastic product use Unit FY2022 FY2023 FY2024 Third Party Verified
Waste (Cosmo Oil) t 258 444 408  
Waste (Maruzen Petrochemical) t 223 154 146