ESG data

Environment

・Please refer to the notes for the scope of reporting for each data.
・Data for fiscal year 2022 marked with ✔ has been guaranteed by a third-party organization.

By Scope GHG emissions	Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Scope1 ^*1,3	Thousand t-CO₂	12,191	12,474	13,479	✔
	t-CH₄	14,531	20,905	10,480	✔
	t-HFC	0.413	0.298	0.294	✔
	t-N₂O	392	431	392	✔
	t-SF₆	0.002	0.002	0.003	✔
	Thousand t-CO₂e	12,671	13,126	13,858	✔	Total value of GHG 7 gases (no use of PFCs, NF ₃) converted to carbon dioxide
Scope2 ^*1,3	Thousand t-CO₂	829	630	553	✔
Scope3 (Category 11) ^*1,2,4	Thousand t-CO₂	108,047	108,073	122,324	✔	Use of sold products: Calculated based on coal, natural gas Refineries/Complexes Petroleum /LPG production volume
Scope1+2 ^*1,3	Thousand t-CO₂	13,020	13,105	14,032	✔
Scope1+2 ^*1,3	Thousand t-CO₂e	13,500	13,756	14,411	✔	Total value of GHG 7 gases (no use of PFCs, NF ³) converted to carbon dioxide
Scope1+2+3 ^*1,2,3	Thousand t-CO₂	121,067	121,178	136,356	✔	Category 11 is included in Scope 3 (only items subject to third-party guarantee are included)
Scope1+2+3 ^*1,2,3	Thousand t-CO₂e	121,548	121,829	136,735	✔	Total value of GHG 7 gases (no use of PFCs, NF ₃) converted to carbon dioxide

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Revised data from previous years has been reflected.
Idemitsu Kosan Consolidated Refining Companies (Toa, Yokkaichi, Western) and major consolidated companies
Idemitsu Kosan Consolidated Refining Company (Toa, Yokkaichi, Western) and consolidated companies

Trends in CO₂ emissions	Unit	2013	Remarks
Scope1+2 ^*	Thousand t-CO₂	15,870

Trends in CO₂ emissions	Unit	2020	2021	2022	third party Warranty Independent Practitioner's Assurance	Remarks
Scope1+2 ^*	Thousand t-CO₂	13,968	14,182	14,207	✔	This is the trend in total emissions, which is the basis for calculating the "CO₂ reduction target (Scope 1+2): 46% reduction compared to 2013."

Changes in CO₂ reduction rate Trends in CO₂ reduction rate	Unit	2020	2021	2022	third party Warranty Independent Practitioner's Assurance	Remarks
CO₂ reduction rate ^*	%	12.0	10.6	10.5	✔	Reduction rate for fiscal 2013 emissions

Idemitsu Kosan consolidated refining companies (Toa, Yokkaichi, Seibu) and major consolidated companies (However, the scope of 2022 data for Seibu Oil Co., Ltd. is from April 2022 to March 2023.)
Seibu Oil Co., Ltd. is included in the calculation of CO₂ emissions and reduction rate (2013, 2020-2022). On the other hand, since GHG emissions by Scope are calculated for consolidated refining companies, etc. as of the reporting year, Seibu Oil is not included in calculations for fiscal 2020 and 2021, and fiscal 2022 is calculated as of June 2022 after becoming a consolidated company. ~March 2023 is included as the calculation period.

Scope 3 emissions (Idemitsu Kosan only)		Unit	2022	Third partyIndependent Practitioner's Assurance	Remarks
Scope3 ^*	Category 1: Purchased products/services	Thousand t-CO₂	15,726	✔
	Category 3: Fuel and energy related activities not included in Scope 1 and 2	Thousand t-CO₂	2,714	✔
	Category 4: Transportation, delivery (upstream)	Thousand t-CO₂	2,648	✔	Including those included in Scope 1 emissions
	Category 11: Use of sold products	Thousand t-CO₂	127,134	✔	Use of sold products: Calculated based on Idemitsu Kosan's sales volume of coal, natural gas, Petroleum, LPG, etc.
	Category 12: Disposal of sold products	Thousand t-CO₂	5,789	✔

Calculated using National Institute of Advanced Industrial Science and Technology IDEA Ver.3.2 and 3.3

GHG emissions intensity	Unit	2020	2021	2022	third party Warranty Independent Practitioner's Assurance	Remarks
Natural gas production ^*1	t-CO₂e/boe	-	-	0.029	✔	Intensity: GHG emissions/natural gas production
Coal production ^*2	t-CO₂e /t	0.066	0.079	0.061	✔	Intensity: GHG emissions/coal production volume
Petroleum refining ^*3,4	t-CO₂e/bbl	0.039	0.039	0.036	✔	Basic unit: GHG emissions/crude oil processing amount
Petrochemical factory ^*5	t-CO₂e /t	0.896	0.897	0.896	✔	Intensity: GHG emissions/ petrochemicals production (ethylene equivalent)

Idemitsu Gas Production (Vietnam) Co.,Ltd.
Ensham Resources Pty. Ltd., Muswellbrook Coal Co., Ltd., Boggabri Coal Pty. Ltd.
In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Hokkaido Refinery, Chiba Complex (oil), Aichi Complex, Toa Oil Co., Ltd., Showa Yokkaichi Sekiyu Co. TOA Oil Co. Ltd., Seibu Oil Co.
Chiba Complex (chemistry), Tokuyama Complex

Energy consumption	Unit	2020	2021	2022	third party Warranty Independent Practitioner's Assurance	Remarks
Calorie conversion value ^*1,2	P.J.	194	194	213	✔
Crude oil equivalent value ^*1,2	Thousand kL	5,003	4,999	5,482	✔
Energy consumption intensity (Refinery) ^*1,3	L/kL	8.54	8.35	8.60	✔	Basic unit: Crude oil equivalent energy consumption L / Normal pressure distillation unit equivalent oil flow kL
Energy consumption intensity (Petrochemical factory) ^※Four	kL/t	0.415	0.415	0.428	✔	Basic unit: Crude oil equivalent energy consumption kL / ethylene equivalent production volume t

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Idemitsu Kosan Consolidated Refining Companies (Toa, Yokkaichi, Western) and major consolidated companies
Hokkaido Refinery, Chiba Complex (oil), Aichi Complex, Toa Oil Co., Ltd., Showa Yokkaichi Sekiyu Co. TOA Oil Co. Ltd., Seibu Oil Co.
Chiba Complex (chemistry), Tokuyama Complex

Water Resources intake/discharge volume ^1,2 Water resources intake/discharge volume ^1,2	Unit	2020	2021	2022	third party Warranty Independent Practitioner's Assurance	Remarks
Seawater intake amount	Thousand tons	1,357,736	1,343,739	1,351,396	✔
Industrial water intake amount	Thousand tons	82,074	82,208	87,649	✔
Water intake amount	Thousand tons	2,409	2,586	2,493	✔
Groundwater water intake	Thousand tons	15,789	14,055	15,799	✔	Groundwater also includes hot water from geothermal power generation.
Water intake meter	Thousand tons	1,458,008	1,442,588	1,457,336	✔
Destination (sea) Discharge volume	Thousand tons	1,357,736	1,343,739	1,351,396
Destination (other) Drainage volume	Thousand tons	71,944	76,438	88,799		The discharge destination also includes reduced water (hot water) used in geothermal power generation.
Displacement amount	Thousand tons	1,429,680	1,420,177	1,440,195	✔
Recycling rate	%	94	92	92	✔	The water recycling rate applies only to "industrial water." (① Industrial water intake: 87,649 ② Industrial water usage: 1,147,934 ③ Industrial water recycling amount: 1,060,285, water recycling rate = ③/②) *②＝①＋③

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Idemitsu Kosan Consolidated Refining Companies (Toa, Yokkaichi, Western) and major consolidated companies

Water intake per unit	Unit	2020	2021	2022	third party Warranty Independent Practitioner's Assurance	Remarks
Natural gas production ^*1	t/boe	-	-	0.568	✔	Basic unit: water intake/natural gas production
Coal production ^*2	t/t	0.486	0.386	0.474	✔	Basic unit: water intake/coal production
Petroleum refining ^*3,4	t/bbl	3.830	3.744	3.224	✔	Basic unit: water intake/crude oil processing amount
Petrochemical factory ^*5	t/t	164	156	157	✔	Intensity: Water intake/ petrochemicals production (ethylene equivalent)

Idemitsu Gas Production (Vietnam) Co.,Ltd.
Ensham Resources Pty. Ltd., Muswellbrook Coal Co., Ltd., Boggabri Coal Pty. Ltd.
In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Hokkaido Refinery, Chiba Complex (oil), Aichi Complex, Toa Oil Co., Ltd., Showa Yokkaichi Sekiyu Co. TOA Oil Co. Ltd., Seibu Oil Co.
Chiba Complex (chemistry), Tokuyama Complex

Water pollution load	Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
COD ^*1,2	t	193	205	206	✔	Related laws and regulations: Water Pollution Prevention Act
Total nitrogen ^*1,3	t	212	211	251	✔
Total phosphorus ^*1,3	t	3.7	3.6	4.2	✔

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Hokkaido Refinery, Chiba Complex, Aichi Office, Aichi Complex, Toa TOA Oil Co. Co., Ltd., Showa Yokkaichi Sekiyu Co. Tokuyama Complex, Ltd., Seibu Oil Co. and major consolidated companies
Chiba Complex, Aichi Complex, Tokuyama Office, Toa TOA Oil Co. Co., Ltd., Showa Yokkaichi Sekiyu Co. Tokuyama Complex Seibu Oil Co. and major consolidated companies

Air pollutant emissions ^*1,2	Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
SOx	t	8,635	8,263	10,528	✔	Related laws: Air Pollution Control Act
NOx	t	20,536	19,719	18,880	✔
Soot and dust	t	223	194	257	✔
VOC	t	5,146	6,265	7,235	✔

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Hokkaido Refinery, Chiba Complex, Aichi Office, Aichi Complex, Toa TOA Oil Co. Co., Ltd., Showa Yokkaichi Sekiyu Co. Tokuyama Complex, Ltd., Seibu Oil Co. and major consolidated companies

Waste ^*1,2,3	Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Amount of waste generated	t	223,427	236,263	225,375	✔	Industrial waste/specially controlled industrial waste Total Related laws and regulations: Waste treatment and cleaning laws
Intermediate processing weight loss	t	80,367	86,197	82,554	✔
Amount recycled	t	111,446	113,599	106,908	✔
Final disposal amount of waste	t	38	82	25	✔
Final waste disposal rate	%	0.017	0.035	0.011	✔

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Revised data from previous years has been reflected.
Hokkaido Refinery, Chiba Complex, Aichi Office, Aichi Complex, Toa Oil Co., Ltd., Showa Yokkaichi Sekiyu Co. TOA Oil Co. Tokuyama Complex Seibu Oil Co.

Hazardous waste ^*1,2,3	Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Amount of waste generated	t	4,187	7,978	6,970	✔	Specially controlled industrial waste is defined as hazardous waste Related laws and regulations: Waste treatment and cleaning laws
Intermediate processing weight loss	t	0	3,318	1,693	✔
Amount recycled	t	4,187	4,651	5,277	✔
Final disposal amount of waste	t	0	9	0	✔
Final waste disposal rate	%	0.000	0.108	0.000

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Revised data from previous years has been reflected.
Hokkaido Refinery, Chiba Complex, Aichi Office, Aichi Complex, Toa Oil Co., Ltd., Showa Yokkaichi Sekiyu Co. TOA Oil Co. Tokuyama Complex Seibu Oil Co.

Non-hazardous waste ^*1,2,3	Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Amount of waste generated	t	219,897	228,989	218,405	✔	Defining industrial waste as non-hazardous waste Related laws and regulations: Waste treatment and cleaning laws
Intermediate processing weight loss	t	96,768	102,173	80,861	✔
Amount recycled	t	120,511	123,903	101,632	✔
Final disposal amount of waste	t	38	73	25	✔
Final waste disposal rate	%	0.017	0.032	0.011

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Revised data from previous years has been reflected.
Hokkaido Refinery, Chiba Complex, Aichi Office, Aichi Complex, Toa Oil Co., Ltd., Showa Yokkaichi Sekiyu Co. TOA Oil Co. Tokuyama Complex Seibu Oil Co.

Freon leakage amount ^*	Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
	t	1.0	0.5	0.3		Figures based on fluorocarbon law reporting
	CO₂e	1,852	1,097	586		Figures based on fluorocarbon law reporting

Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Complex, Lubricants Research Laboratory Research Institute, Advanced Technology Research Laboratories Institute, Performance Materials Laboratories, Shimonoseki Daini Solar Power Plant

Number of environmental accidents ^* Number of environmental accidents^*	Unit	2020	2021	2022	third party Warranty Independent Practitioner's Assurance	Remarks
	Cases	3	1	2

Idemitsu Kosan and major affiliated companies

ISO14001 (Environmental Management System) Acquisition statusISO14001 (Environmental Management System) Acquisition status	Unit	2021 As of June 30th	2022 As of June 30th	2023 As of June 30th	Third partyIndependent Practitioner's Assurance	Remarks
Domestic Complex	Sites	21	19	17		From the perspective of environmental management, we cover over 94% of CO₂ emissions.
Overseas Complex	Sites	13	13	13

Each Refineries/Complexes

Hokkaido Refinery	Unit	2020	2021	2022
Crude oil processing amount	Thousand kL	4,598	6,824	5,973
Energy consumption (crude oil equivalent)	Thousand kL ^*1	373	497	456
Energy usage intensity	kL/Thousand kL ^*2	8.98	8.77	8.83
Seawater usage	Thousand tons	111,202	148,045	135,851
Industrial water usage	Thousand tons	12,608	13,034	13,105
Water consumption	Thousand tons	65	60	65
Groundwater usage	Thousand tons	279	263	238
CO₂ emissions	Thousand t-CO₂	1,124	1,508	1,392
SOx emissions	t	1,612	1,742	1,580
NOx emissions	t	867	1,106	1,061
Amount of soot and dust generated	t	6	8	3
Displacement amount	Thousand kL	123,875	161,139	148,994
COD	t	18	18	18
Total nitrogen	t	-	-	-
Total phosphorus	t	-	-	-
Amount of waste generated	t	10,571	6,461	5,911
Intermediate processing weight loss	t	1,763	1,929	1,387
Amount recycled	t	7,412	3,866	3,837
Final disposal amount	t	3	2	2

Energy consumption (crude oil equivalent) is calculated by subtracting the amount of by-product energy sold.
Basic unit = Crude oil equivalent L/Normal pressure distillation equipment equivalent throughput kL

Chiba Complex	Unit	2020	2021	2022
Crude oil processing amount	Thousand kL	9,937	9,321	10,660
Petrochemicals production volume (ethylene equivalent)	Thousand tons	1,776	1,834	1,874
Energy consumption (crude oil equivalent)	Thousand kL ^*1	1,426	1,388	1,473
Energy usage intensity	kL/Thousand kL ^*2	8.97	9.03	8.83
Energy usage intensity	kL/t ^*3	0.34	0.33	0.32
Seawater usage	Thousand tons	468,093	436,446	456,730
Industrial water usage	Thousand tons	19,641	19,886	19,889
Water consumption	Thousand tons	-	-	-
Groundwater usage	Thousand tons	320	402	343
CO₂ emissions	Thousand t-CO₂	3,455	3,348	3,563
SOx emissions	t	3,268	3,080	3,672
NOx emissions	t	2,478	2,270	2,524
Amount of soot and dust generated	t	125	94	122
Displacement amount	Thousand kL	486,602	455,318	475,913
COD	t	37	38	38
Total nitrogen	t	67	68	65
Total phosphorus	t	0.4	0.5	0.3
Amount of waste generated ^*4	t	76,054	89,501	77,105
Intermediate processing weight loss ^*4	t	1,133	3,692	1,720
Amount recycled ^*4	t	45,918	52,206	41,864
Final disposal amount	t	6	13	5

Energy consumption (crude oil equivalent) is calculated by subtracting the amount of by-product energy sold.
Basic unit = Crude oil equivalent L/Normal pressure distillation equipment equivalent throughput kL
Basic unit = crude oil equivalent kL/ethylene equivalent production t
Revised data from previous years has been reflected.

Aichi Complex	Unit	2020	2021	2022
Crude oil processing amount	Thousand kL	7,474	5,740	7,879
Energy consumption (crude oil equivalent)	Thousand kL ^*1	667	547	702
Energy usage intensity	kL/Thousand kL ^*2	9.24	9.17	9.56
Seawater usage	Thousand tons	239,380	198,874	237,441
Industrial water usage	Thousand tons	12,256	11,978	13,629
Water consumption	Thousand tons	114	189	165
Groundwater usage	Thousand tons	-	-	-
CO₂ emissions	Thousand t-CO₂	1,851	1,528	1,910
SOx emissions	t	884	504	736
NOx emissions	t	1,240	1,061	1,362
Amount of soot and dust generated	t	44	37	50
Displacement amount	Thousand kL	251,750	211,041	251,235
COD	t	11	8	10
Total nitrogen	t	13	12	10
Total phosphorus	t	1.2	1.1	1.2
Amount of waste generated	t	80,775	78,586	68,666
Intermediate processing weight loss	t	51,124	50,159	45,396
Amount recycled	t	28,707	26,716	21,988
Final disposal amount	t	26	67	17

Energy consumption (crude oil equivalent) is calculated by subtracting the amount of by-product energy sold.
Basic unit = Crude oil equivalent L/Normal pressure distillation equipment equivalent throughput kL

Tokuyama Complex	Unit	2020	2021	2022
Petrochemicals production volume (ethylene equivalent)	Thousand tons	1,536	1,796	1,523
Energy consumption (crude oil equivalent)	Thousand kL ^*1	778	904	861
Energy usage intensity	kL/t ^*2	0.51	0.50	0.57
Seawater usage	Thousand tons	397,463	426,763	396,776
Industrial water usage	Thousand tons	11,502	11,308	10,159
Water consumption	Thousand tons	201	191	202
Groundwater usage	Thousand tons	-	-	-
CO₂ emissions	Thousand t-CO₂	1,712	1,985	1,792
SOx emissions	t	815	862	812
NOx emissions	t	1,423	1,589	1,492
Amount of soot and dust generated	t	14	13	14
Displacement amount	Thousand kL	409,166	438,261	406,139
COD	t	16	20	16
Total nitrogen	t	18	16	14
Total phosphorus	t	0.3	0.4	0.5
Amount of waste generated	t	24,924	30,501	28,405
Intermediate processing weight loss	t	15,001	20,487	17,782
Amount recycled	t	9,920	9,968	10,623
Final disposal amount	t	2	0	0

Energy consumption (crude oil equivalent) is calculated by subtracting the amount of by-product energy sold.
Basic unit = crude oil equivalent kL/ethylene equivalent production t

Emissions and transfers of PRTR substances (FY2022)

PRTR Control number PRTR Control number	CAS number	Target substance name	Unit	Total / Emissions - emissions to the atmosphere (Standard Unit) Total / Emissions - emissions to the atmosphere (standard unit)	Total / Emissions - Discharge into public waters (Standard Unit) Total / Emissions - Discharge into public waters (standard unit)	Total/travel amount - waste (Standard Unit) Total/travel amount - waste (standard unit)	Total
1	-	Water-soluble compounds of zinc	t	0.0	1.7	0.0	1.7
13	75-05-8	acetonitrile	t	0.0	0.0	2.7	2.7
20	141-43-5	2-aminoethanol	t	0.0	0.0	51.7	51.7
33	1332-21-4	asbestos	t	0.0	0.0	2.8	2.8
37	80-05-7	4,4'-isopropylidenediphenol (also known as bisphenol A)	t	0.0	0.0	4.4	4.4
53	100-41-4	ethylbenzene	t	10.5	0.0	6.9	17.4
80	1330-20-7	xylene (also known as dimethylbenzene)	t	24.4	0.1	6.8	31.2
132	-	Cobalt and its compounds	t	0.0	0.0	25.0	25.0
186	75-09-2	dichloromethane (also known as methylene chloride)	t	0.2	0.0	10.6	10.7
190	77-73-6	dicyclopentadiene	t	0.3	0.0	0.0	0.3
232	68-12-2	N,N-dimethylformamide	t	0.0	0.0	17.2	17.2
240	100-42-5	styrene	t	19.7	0.0	1.3	21.0
242	-	Selenium and its compounds	t	0.0	0.0	0.9	0.9
243	-	Dioxins	mg-TEQ	0.0	1.1	0.0	1.1
245	62-56-6	Thiourea	t	0.0	0.4	0.0	0.4
260	1897-45-6	Tetrachloroisophthalonitrile (also known as chlorothalonil or TPN)	t	0.0	0.0	40.0	40.0
262	127-18-4	Tetrachlorethylene	t	0.0	0.0	0.1	0.1
281	79-01-6	Trichlorethylene (also known as trichlorethylene)	t	0.0	0.0	0.6	0.6
296	95-63-6	1,2,4-trimethylbenzene	t	3.5	0.0	0.0	3.6
297	108-67-8	1,3,5-trimethylbenzene	t	0.4	0.0	0.0	0.4
300	108-88-3	toluene (also known as methylbenzene)	t	100.4	0.0	52.3	152.7
349	108-95-2	phenol	t	0.2	0.0	4.6	4.8
389	112-02-7	Hexadecyltrimethylammonium chloride	t	0.0	10.6	0.0	10.6
392	110-54-3	normal-hexane	t	235.2	0.0	8.7	243.9
400	71-43-2	benzene	t	26.0	0.0	0.0	26.1
405	-	boron compounds	t	0.0	0.0	7.4	7.4
412	-	Manganese and its compounds	t	0.0	0.0	10.9	10.9
453	-	Molybdenum and its compounds	t	0.0	0.0	88.1	88.1

In principle, the scope of Seibu Oil Co., Ltd.'s 2022 data is from June 2022 to March 2023 after it becomes a consolidated company. Please note that fiscal years 2020 and 2021 were not included in the calculation as they were not consolidated.
Target of calculation: Idemitsu Kosan consolidated refining companies (Toa, Yokkaichi, Western) and major consolidated companies
Of the items subject to aggregation, those whose total amount of emissions and transfers is less than 0.1 t/year are omitted even if they are handled.
The total value may not add up due to rounding.
PRTR: Act on Promotion of Ascertainment of Emissions of Specified Chemical Substances into the Environment and Improvement of Management

Society

・The scope of data collection is Idemitsu Kosan itself. The scope of reporting differs for some data, so please refer to the notes section of each data for details.
・Data for fiscal year 2022 marked with ✔ has been guaranteed by a third-party organization.

Employment status *As of March 31, 2023			Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Number of employees (number of general employees + number of executives)			People	4,943	5,112	4,981	✔	[Aggregation target] Idemitsu Kosan employment (employee, senior, full-time contract, advisor) However, this excludes those who are seconded to other companies. The calculation method for 2021 has been changed for seniors (60 years of age or older) and senior employees (65 years of age or older). The calculation method for fiscal 2020 has been changed for the number of employees below deputy manager.
		Male	People	4,355	4,460	4,316	✔
		Woman	People	588	652	665	✔
		Female ratio	%	11.9	12.8	13.4	✔
		Foreign nationality	People	35	41	36
		Foreign nationality ratio	%	0.7	0.8	0.7
		Senior (over 60 years old)	People	600	634	433
		Senior (65 years of age or older)	People	-	112	160
Number of general employees			People	3,959	4,137	4,029
		Male	People	3,395	3,510	3,397
		Woman	People	564	627	632
		Female ratio	%	14.2	15.2	15.7
Number of managers (Manager, department head)			People	984	975	952	✔
		Male	People	960	950	919	✔
		Woman	People	24	25	33	✔
		Female ratio	%	2.4	2.6	3.5	✔
Among them, department head and above			People	37	39	44
		Male	People	34	37	41
		Woman	People	3	2	3
		Female ratio	%	8.1	5.1	6.8
Among them, Deputy Director and below			People	947	935	908
		Male	People	926	912	878
		Woman	People	21	23	30
		Female ratio	%	2.2	2.5	3.3
average age			age	42.1	42.1	42.2	✔
		Male	age	42.3	42.4	42.5	✔
		Woman	age	40.3	40.1	40.5	✔
Average length of service			Year	19.4	18.6	18.5	✔
		Male	Year	19.7	19.0	18.9	✔
		Woman	Year	17.3	16.1	16.1	✔
average salary	Men's basic salary	Official	yen/month	689,656	691,727	688,951		[Aggregation target] Idemitsu Kosan employment (employee, senior, full-time contract, advisor)
	Men's basic salary	Responsible position	yen/month	368,413	371,354	342,687
	male bonus	Official	yen/year	4,139,552	4,131,412	5,201,780
	male bonus	Responsible position	yen/year	1,831,199	2,048,839	2,401,878
	basic salary for women	Official	yen/month	675,789	676,088	664,407
	basic salary for women	Responsible position	yen/month	342,353	334,948	319,638
	Women's bonus	Official	yen/year	4,261,621	4,302,342	4,699,277
	Women's bonus	Responsible position	yen/year	1,666,345	1,827,210	1,995,833
Employment of people with disabilities *As of June 1, 2023		ratio	%	2.30	2.35	2.50	✔	[Aggregation target] Idemitsu Kosan employees (employees, seniors, full-time contract workers, advisors) include those who are seconded to other companies, but exclude those who are seconded to other companies. Calculated based on the calculation method of the Ministry of Health, Labor and Welfare
Employment of people with disabilities *As of June 1, 2023		Number of people	People	119	124	125
Consolidated number of employees			People	14,044	14,209	14,363		[Aggregation target] Idemitsu Kosan and consolidated subsidiaries (63 companies in FY2020, 62 companies in FY2021, 63 companies in FY2022)
Turnover rate (including those who retired)			%	3.18	3.97	4.22		[Aggregation target] Idemitsu Kosan employment (employee, senior, full-time contract, advisor) However, this excludes those who are seconded to other companies.
Voluntary resignation rate			%	1.42	2.13	2.29
New employee retention rate (Average for new employees from 2018 to 2020)			%	89.4	89.6	89.3	✔	[Aggregation target] Idemitsu Kosan's track record of direct employment Retention rate: Average percentage of new employees in the target fiscal year who remain with the company three years later Turnover rate: Percentage of new graduates who joined the company in the relevant year and voluntarily resigned within three years
New employee turnover rate (Average for new employees from 2018 to 2020)			%	8.8	7.9	10.0	✔

Recruitment status		Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Number of new graduates hired *April 2023 recruitment		People	151	131	87	✔	[Aggregation target] Results of employment as direct employment of Idemitsu Kosan, data in parentheses for fiscal year 2022 is for graduates and above.
Number of new graduates hired *April 2023 recruitment		People	151	131	(48)	✔
	Male	People	127	107	70	✔
	Male	People	127	107	(32)	✔
	Woman	People	24	24	17	✔
	Woman	People	24	24	(16)	✔
	Female ratio	%	15.9	18.3	19.5	✔
	Female ratio	%	15.9	18.3	(33.3)	✔
	Foreign nationality	People	2	1	1	✔
	Foreign nationality	People	2	1	(1)	✔
	Foreign nationality ratio	%	1.3	0.8	1.1	✔
	Foreign nationality ratio	%	1.3	0.8	(2.1)	✔
Mid-career recruitment *Recruitment in 2022		People	91	62	33	✔
	Male	People	-	-	17
	Woman	People	-	-	16

Number of users of the work-life balance system		Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
maternity leave	Woman	People	35	30	31	✔	[Aggregation target] Idemitsu Kosan employment (including employees and those transferred to other companies) *Includes seniors and rehires until FY2020
Childcare leave		People	90	108	168	✔
	Male	People	22	49	142	✔
	Woman	People	68	59	26	✔
Childcare leave acquisition rate		%	-	-	86	✔
	Male	%	-	-	84	✔
	Woman	%	-	-	96	✔
Return to work rate after childcare leave		%	-	-	100	✔
	Male	%	-	-	100	✔
	Woman	%	100	100	100	✔
Nursing care leave		People	2	5	8	✔
	Male	People	2	3	7	✔
	Woman	People	0	2	1	✔
Short working hours		People	72	62	50	✔
	Male	People	1	0	3	✔
	Woman	People	71	62	47	✔
Leave to care for a child		People	133	226	228	✔
	Male	People	61	133	121	✔
	Woman	People	72	93	107	✔
Leave for caring for a family member		People	37	43	56	✔
	Male	People	25	35	44	✔
	Woman	People	12	8	12	✔
Telework work		People	3,592	4,581	4,592	✔
	Male	People	3,086	3,976	4,033	✔
	Woman	People	506	605	559	✔
Self-development leave		People	2	0	3	✔
	Male	People	2	0	1	✔
	Woman	People	0	0	2	✔
Volunteer leave of absence		People	1	0	0
	Male	People	0	0	0
	Woman	People	1	0	0
Spouse overseas transfer leave		People	4	8	10
	Male	People	0	0	0
	Woman	People	4	8	10

overtime work, Annual paid leave taken overtime work,Record of annual paid leave taken	Unit	2020	2021	2022	third party Warranty Independent Practitioner's Assurance
Average number of overtime hours per person	hours/month	20.0	20.8	20.5	✔
Number of days of annual paid leave taken per person	Day	14.1	15.3	16.9	✔
Average rate of paid leave taken per person	%	69.5	75.3	83	✔

[Aggregation target]
Idemitsu Kosan employment (employee). However, this excludes those on leave of absence and seconded employees. Overtime work excludes executives.
*Includes seniors and rehires until FY2020

Training results		Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Training time	Total time	Time	57,581	81,653	74,722	✔	[Aggregation target] Education and training sponsored by the Human Resources Department of Idemitsu Kosan (non-consolidated) *FY2021 includes three in-house cram schools (Smart Yorozuya Juku, Business Design Juku, and CNX Center Juku)
Training time	Per person	Time	10.9	15.6	12.8	✔
Training investment amount	Total amount	Thousand yen	256,000	235,400	247,810	✔
Training investment amount	Per person	Thousand yen	48	45	43	✔

Labor accident record		Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Occupational accident frequency rate	Employee	-	0.30	0.74	0.15	✔	[Subject to aggregation Hokkaido Refinery Chiba Complex (including Prime Polymer Anesaki Plant), Aichi Complex, Tokuyama Complex, TOA Oil Co. Keihin Refinery, TOA Oil Co. Mizue Power Plant, Showa Yokkaichi Sekiyu Co. Yokkaichi Refinery, Seibu Oil Co. Yamaguchi Refinery *BASF Idemitsu K.K. is included in Chiba Complex until FY2021. Employees: Employees of Idemitsu Kosan, TOA Oil Co., Showa Yokkaichi Sekiyu Co., Seibu Oil Co., and Prime Polymer Co. Idemitsu Plantech Tokuyama Co., Ltd. and employees of subcontractors to which the above sites outsource their operations. Period covered: January to December Calculation method Frequency rate = (number of fatalities and injuries due to work-related accidents/total number of actual working hours) x 1,000,000 TRIFR = (Total number of occupational accidents/total number of actual working hours) x 1,000,000 LTIFR = (Number of lost time injuries/total actual hours worked) x 1,000,000 Intensity rate = (Total number of lost workdays/total number of actual hours worked) x 1,000,000
Occupational accident frequency rate	Partner company employee	-	0.79	0.41	0.46	✔
Number of fatalities related to industrial accidents	Employee	People	0	0	0	✔
Number of fatalities related to industrial accidents	Partner company employee	People	0	1	0	✔
TRIFR (Total Recordable Injury Frequency Rate)	Employee	-	1.35	2.51	1.62	✔
TRIFR (Total Recordable Injury Frequency Rate)	Partner company employee	-	2.71	2.41	2.66	✔
LTIFR (Lost Time Incident Frequency Rate)	Employee	-	0.30	0.74	0.15	✔
LTIFR (Lost Time Incident Frequency Rate)	Partner company employee	-	0.79	0.41	0.46	✔
intensity rate	Employee	-	0.00	0.01	0.00	✔
intensity rate	Partner company employee	-	0.05	0.52	0.02	✔

Number of safety-related accidents		Unit	2020	2021	2022	Third partyIndependent Practitioner's Assurance	Remarks
Serious accident		Cases	0	0	0	✔	[Aggregation target] Hokkaido Refinery, Chiba Complex (including Prime Polymer Co., Ltd. Anesaki Plant), Aichi Complex, Tokuyama Complex, Toa Oil Refinery TOA Oil Co. TOA Oil Co. Mizue Power Plant, Showa Yokkaichi Sekiyu Co., Seibu Oil Co. *BASF Idemitsu Co., Ltd. will be included in Chiba Complex until fiscal 2021. ・Cooperating companies: Employees of Idemitsu Plantec Hokkaido Co., Ltd., Idemitsu Plantec Chiba Co., Ltd., Idemitsu Plantec Aichi Co., Ltd., Idemitsu Plantec Tokuyama Co., Ltd., and cooperating companies to which the above calculation target bases outsource operations. [Aggregation period] January to December
	Of which, partner companies	Cases	0	0	0	✔
Fatal accident		Cases	0	1	1
	Of which, partner companies	Cases	0	1	1
Lost time accident		Cases	13	11	27
	Of which, partner companies	Cases	11	6	15
Accident without lost time		Cases	34	41	41
	Of which, partner companies	Cases	27	29	22

ISO9001 (quality management system) Acquisition status	Unit	2021 As of June 30th	2022 As of June 30th	2023 As of June 30th	third party Warranty Independent Practitioner's Assurance	Remarks
Domestic/overseas Complex	Sites	34	33	32

Achievements related to health		Unit	2020	2021	2022	Remarks
Periodic health checkup participation rate		%	100.0	99.9	99.9	[Aggregation parameters] Employees employed by Idemitsu Kosan (including those seconded to other companies, excluding those seconded to other companies and those working overseas)
Secondary examination participation rate		%	89.1	89.1	89.0	[Secondary inspection target] Including non-statutory items
Poor blood pressure control rate		%	0.2	0.2	0.1	[Aggregation criteria] Persons with systolic blood pressure of 180 mmHg or higher or diastolic blood pressure of 110 mmHg or higher
Poor diabetes management rate		%	0.5	0.6	0.5	[Aggregation criteria] Persons with HbA1c of 8.0% or higher
Health guidance implementation rate for high-risk individuals		%	94.7	92.3	94.6	[Aggregation criteria] Persons whose BMI, blood pressure, ALT, HDL cholesterol, LDL cholesterol, triglyceride, or HbA1c fall under the poorly controlled group (according to our own standards)
Continuous support implementation rate for high-risk individuals		%	63.0	62.3	75.2	[Aggregation parameters] Employees under the jurisdiction of the head office's medical office among Idemitsu Kosan's employees (including those seconded to other companies, but excluding seconded employees and overseas workers)
Appropriate weight maintenance rate		%	65.9	66.2	65.2	[Aggregation criteria] Persons with a BMI of 18.5 to less than 25.0
Health checkup questionnaire results	smoking rate	%	22.0	20.9	20.6
	Ratio of regular exercisers	%	34.0	36.7	37.0	[Aggregation criteria] Those who exercise for 30 minutes or more each time twice a week
	Percentage of people who get enough rest through sleep	%	78.4	78.1	75.9
	Rate of habitual drinkers	%	19.1	15.1	17.8	[Aggregation criteria] Those who "drink frequently or every day" and "drink more than 2 cups of alcohol per day on drinking days"
	Breakfast intake rate	%	76.3	75.9	74.9	[Aggregation criteria] Those who eat breakfast 5 or more days a week
Self-care practitioner rate		%	26.2	27.6	28.0	[Aggregation criteria] Subjects with no lifestyle problems in all areas of smoking, exercise, sleep, drinking, and breakfast.
Rate of employees taking leave due to mental health problems		%	1.5	1.5	1.7	[Aggregation parameter] Employees employed by Idemitsu Kosan (including those seconded to other companies and those working overseas; excluding those seconded from other companies) [Aggregation criteria] Employees who have been absent from work for one month or more due to mental health issues. If it occurs multiple times within the year, it will be counted each time.
stress check	Examination rate	%	89.4	89.3	88.8	[Aggregation parameter] Employees employed by Idemitsu Kosan (including those working overseas; excluding those seconded to and accepted from other companies)
stress check	High stress rate	%	7.3	7.7	7.8	[Aggregation parameter] Those who took a stress check [High stress standard] Comply with standards recommended by the Ministry of Health, Labor and Welfare
presentism		%	-	-	19.2	[Aggregation criteria] Degree of productivity decline due to deterioration of mental and physical health, scale using the University of Tokyo single-item version (SPQ)

Governance

・The scope of data collection is Idemitsu Kosan itself.

Officer composition *As of June 30, 2023		Unit	2020	2021	2022	2023
Number of directors		People	12	11	11	11
	Of which, number of outside directors	People	Five (1 female, 1 foreign nationality)	Four (Female 2)	Four (Female 2)	Four (Female 2)
Number Audit & Supervisory Board Member		People	4	4	4	4
	Of which, number Audit & Supervisory Board Member	People	2	2	2	2

Records of holding meetings of the Board of Directors, etc.		Unit	2020	2021	2022
Board of directors	Number of times	times	16	15	15
Board of directors	average attendance rate	%	99.5	100.0	99.4
Audit & Supervisory Board Member	Number of times	times	17	16	16
Audit & Supervisory Board Member	average attendance rate	%	100	100	100

Compliance	Unit	2022	Remarks
serious compliance violation	Cases	2	[Aggregation target] Idemitsu Kosan and affiliated companies
Number of incidents of corruption and bribery	Cases	0
Number of employee disciplinary actions related to corruption and bribery	Cases	0
Tax compliance violation	Cases	0	[Aggregation target] Idemitsu Kosan and affiliated companies that Idemitsu Kosan effectively controls (companies with over 50% stock, excluding Astomos Energy Co., Ltd.)

information security	Unit	2020	2021	2022	Remarks
Serious information security violation	Cases	0	0	0	[Aggregation target] Idemitsu Kosan and affiliated companies
Serious personal information protection violation	Cases	0	0	0

intellectual property		Unit	2020	2021	2022	Remarks
Number of patents published	Domestic	Cases	223	254	231	[Aggregation target] Idemitsu Kosan, Idemitsu Unitech Co., Ltd., Idemitsu Fine Composites Co., Ltd., Solar Frontier Co., Ltd., Nippon Grease Co., Ltd., Idemitsu Engineering Co., Ltd., Idemitsu Credit Co., Ltd.
Number of patents published	abroad	Cases	161	137	196
Number of patents held	Domestic	Cases	2,102	2,050	2,012
Number of patents held	abroad	Cases	3,444	3,538	3,626

Graph collection

●Status of Resources input and environmental impact in the Idemitsu Group's business activities in fiscal 2022

*Ratio data may not add up to the total due to rounding.

Click here for enlarged PDF (PDF: 2.58MB)

●CO₂ emissions (Scope 1, 2, 3) results

*Aggregation target: Idemitsu Kosan consolidated refining companies (TOA Oil Co., Showa Yokkaichi Sekiyu Co., Seibu Oil Co.) and major consolidated companies
*Data for Seibu Oil Co. only includes emissions from June 2022, when the company became a consolidated company.

●CO₂ emissions (Scope 1+2) actual trends

*Aggregation targets: Idemitsu Kosan, consolidated refining companies (TOA Oil Co., Showa Yokkaichi Sekiyu Co., Seibu Oil Co.), and major consolidated companies

●Waste treatment breakdown (FY2022)

*The amount of waste generated includes the amount disposed within the company, so it does not match the total value of each amount disposed in the diagram.
*Waste is the total of industrial waste and specially controlled industrial waste.
*Aggregation targets: Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Works, TOA Oil Co., Showa Yokkaichi Sekiyu Tokuyama Complex Showa Yokkaichi Sekiyu Co., Seibu Oil Co. (from June 2022)

●Final waste disposal rate at group Refinery

*Waste is the total of industrial waste and specially controlled industrial waste.
*Aggregation targets: Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Works, TOA Oil Co., Showa Yokkaichi Sekiyu Tokuyama Complex Showa Yokkaichi Sekiyu Co., Seibu Oil Co. (from June 2022)

●Idemitsu Engagement Index

*Aggregation target: Idemitsu Kosan (non-consolidated)

●Ratio of female executives

*Aggregation target: Idemitsu Kosan employees (employees, seniors, full-time contract workers, advisors), excluding employees seconded to other companies

●Female recruitment ratio

*Aggregation target: Records of direct employment at Idemitsu Kosan.
*This is the results for those hired in April of the following year for each fiscal year.

●Male ratio taking childcare leave

*Aggregation target: Idemitsu Kosan employment (including all employees and those transferred to other companies)
*Results as of the end of fiscal year 2021 and 2022.
*The above includes childcare leave.

●Training investment amount per employee

●Changes in the frequency rate of industrial accidents (frequency of accidents)

Trends in occupational accident frequency rate

●Changes in severity rate (degree of severity of disaster)

* Hokkaido Refinery, Chiba Complex (Prime Polymer Anesaki Plant), Aichi Complex, Tokuyama Complex TOA Oil Co. TOA Oil Co. Refinery, Ltd. Mizue Power Plant, Showa Yokkaichi Sekiyu Co. Yokkaichi Refinery, Seibu Oil Co. Yamaguchi Refinery (until 2021, Chiba Complex will include BASF Idemitsu Co., Ltd.)
・Employees: Employees of Idemitsu Kosan Co., Ltd., TOA Oil Co., Showa Yokkaichi Sekiyu Co., Seibu Oil Co., and Prime Polymer Co., Ltd. who work at the bases covered by the above data.
・Employees of partner companies: Employees of Idemitsu Plantec Hokkaido Co., Ltd., Idemitsu Plantec Chiba Co., Ltd., Idemitsu Plantec Aichi Co., Ltd., Idemitsu Plantec Tokuyama Co., Ltd., and cooperation in which the above-mentioned bases outsource work company employee
[Aggregation period] January to December
*The average value for all industries Complex with 100 or more employees is quoted from the Ministry of Health, Labor and Welfare's 2020 Occupational Accident Trend Survey.

●Change in composition of directors

●Changes in the number of patent applications (publications)

Trends in the number of patent applications

●Changes in the number of patents held

●Value of patents held and percentage of high-value patents (company-wide)

Independent Assurance Report

Click here for the Independent Assurance Report (PDF: 3.31MB)

ESG data

Environment

Each Refineries/Complexes

Emissions and transfers of PRTR substances (FY2022)

Society

Governance

Graph collection

Independent Assurance Report

Sustainability

Message from the President

Sustainability・
management

Idemitsu Group's materiality (key challenges)

Environment

Society

Governance

Sustainability
news

Various materials

Sustainability・TOP

Message from the President

Sustainability management

Idemitsu Group's
materiality (important issues)

Environment

Society

Governance

Sustainability news

Various materials