• Environment
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• Data Sheet
• Independent Practitioner’s Assurance Report

• For the reporting scope, please refer to the footnotes for each data point.
• The data for FY2022 indicated with (✔) has been assured by the Independent Practitioner.

GHG Emissions by Scope	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
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 7 GHGs (no use of PFCs, NF3) converted to carbon dioxide
Scope2*1,3	thousand t-CO2	829	630	553	✔
Scope3 (Category11)*1,2,4	thousand t-CO2	108,047	108,073	122,324	✔	Use of sold products: Calculated based on coal/natural gas production and fuel/LPG production at refineries and complexes
Scope1＋2*1,3	thousand t-CO2	13,020	13,105	14,032	✔
	thousand t-CO2e	13,500	13,756	14,411	✔	Total 7 GHGs (no use of PFCs, NF3) converted to carbon dioxide
Scope1＋2＋3*1,2,3	thousand t-CO2	121,067	121,178	136,356	✔	Scope 3 records category 11 (only third-party warranty coverage).
	thousand t-CO2e	121,548	121,829	136,735	✔	Total 7 GHGs (no use of PFCs, NF3) converted to carbon dioxide

• *1 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *2 Historical data has been revised.
• *3 Idemitsu, consolidated refining companies (TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.) and major consolidated group companies
• *4 Idemitsu, consolidated refining companies (TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.) and consolidated group companies

Trend in CO2 Emissions	Unit	2013FY
Scope1+2*	thousand t-CO2	15,870
Trend in CO2 Emissions	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Scope1+2*	thousand t-CO2	13,968	14,182	14,207	✔	This table shows the total emissions that are the basis for calculating CO2 (Scope 1+2) reductions target for FY2030: 46% reduction compared to FY2013.
Trend in CO2 Reduction Rate	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
CO2 reduction rate*	%	12.0	10.6	10.5	✔	Percentage reduction against 2013 emissions

• * Idemitsu, consolidated refining companies (TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.) and major consolidated group companies (However, the scope of the FY2022 data for Seibu Oil Co.,Ltd. is from April 2022 to March 2023.)
• * The calculations of CO₂ emissions and reduction rates (FY2013, FY2020-2022) include Seibu Oil Co.,Ltd.. On the other hand, the calculation of GHG emissions by Scope covers consolidated refining companies, etc. as of the reporting year, so the calculations for FY2020 and FY2021 do not include Seibu Oil Co.,Ltd., but the calculation for FY2022 includes it from June 2022 to March 2023, after it became a consolidated group company.

Scope3 Emissions (Idemitsu Kosan non-consolidated)		Unit	FY2022	Independent Practitioner’s Assurance	Note
Scope3*	Category1: Purchased goods and services	thousand t-CO2	15,726	✔
	Category3: Fuel- and energy-related activities (not included in Scope1 or 2)	thousand t-CO2	2,714	✔
	Category4: Upstream transportation and distribution (upstream)	thousand t-CO2	2,648	✔	Includes emissions accounted for in Scope 1
	Category11: Use of sold products	thousand t-CO2	127,134	✔	Use of sold products: Calculated based on the volume of coal, natural gas, fuel and LPG, etc. sold by Idemitsu Kosan Co.,Ltd..
	Category12: End-of-life treatment of sold products	thousand t-CO2	5,789	✔

• * Calculated using AIST (The National Institute of Advanced Industrial Science and Technology) IDEA Ver. 3.2 and 3.3.

GHG Emissions per Unit of Production	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Natural gas production*1	t-CO2e/boe	-	-	0.029	✔	Unit: GHG emissions / natural gas production
Coal production*2	t-CO2e/t	0.066	0.079	0.061	✔	Unit: GHG emissions / coal production
Oil refining*3,4	t-CO2e/bbl	0.039	0.039	0.036	✔	Unit: GHG emissions / refinery throughput
Petrochemical plants*5	t-CO2e/t	0.896	0.897	0.896	✔	Unit: GHG emissions / petrochemicals production (ethylene equivalent)

• *1 Idemitsu Gas Production (Vietnam) Co.,Ltd.
• *2 Ensham Resources Pty. Ltd., Muswellbrook Coal Co., Ltd., Boggabri Coal Pty. Ltd.
• *3 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *4 Hokkaido Refinery, Chiba Complex (Petroleum), Aichi Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.
• *5 Chiba Complex (Chemicals), Tokuyama Complex

Energy Consumption	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Heat quantity equivalent*1,2	PJ	194	194	213	✔
Crude oil equivalent*1,2	thousand kL	5,003	4,999	5,482	✔
Unit energy consumption (Refinery)*1,3	L/kL	8.54	8.35	8.60	✔	Unit: Crude oil equivalent energy consumption (L) / atmospheric distillation equipment converted throughput (kL)
Unit energy consumption (Petrochemical plant)*4	kL/t	0.415	0.415	0.428	✔	Unit: Crude oil equivalent energy consumption (kL) / ethylene equivalent production (t)

• *1 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *2 Idemitsu, consolidated refining companies (TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.) and major consolidated group companies
• *3 Hokkaido Refinery, Chiba Complex (Petroleum), Aichi Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.
• *4 Chiba Complex (Chemicals), Tokuyama Complex

Amount of Water Resources Intake and Wastewater*1,2	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Seawater intake	thousand t	1,357,736	1,343,739	1,351,396	✔
Industrial water intake	thousand t	82,074	82,208	87,649	✔
Tap water intake	thousand t	2,409	2,586	2,493	✔
Underground water intake	thousand t	15,789	14,055	15,799	✔	Underground water also contains hot water from geothermal power generation.
Total water intake	thousand t	1,458,008	1,442,588	1,457,336	✔
Wastewater destination (sea)	thousand t	1,357,736	1,343,739	1,351,396
Wastewater destination (other)	thousand t	71,944	76,438	88,799		The destination includes reduced water (hot water) used in geothermal power generation.
Wastewater	thousand t	1,429,680	1,420,177	1,440,195	✔
Water recycling rate	%	94	92	92	✔	The water recycling rate only applies to industrial water. (1.Industrial water intake: 87,649; 2.Industrial water use: 1,147,934; 3.Industrial water recycling: 1,060,285, Water recycling rate =3 / 2) *2＝1＋3

• *1 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *2 Idemitsu, consolidated refining companies (TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.) and major consolidated group companies

Water Withdrawal Rate	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Natural gas production*1	t/boe	-	-	0.568	✔	Unit: Water withdrawal / natural gas production
Coal production**2	t/t	0.486	0.386	0.474	✔	Unit: Water withdrawal / coal production
Oil refining*3,4	t/bbl	3.830	3.744	3.224	✔	Unit: Water withdrawal / refinery throughput
Petrochemical plants*5	t/t	164	156	157	✔	Unit: Water withdrawal / petrochemicals production (ethylene equivalent)

• *1 Idemitsu Gas Production (Vietnam) Co.,Ltd.
• *2 Ensham Resources Pty. Ltd., Muswellbrook Coal Co., Ltd., Boggabri Coal Pty. Ltd.
• *3 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *4 Hokkaido Refinery, Chiba Complex (Petroleum), Aichi Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.
• *5 Chiba Complex (Chemicals), Tokuyama Complex

Water Pollution Effects	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
COD*1,2	t	193	205	206	✔	Laws: Water Pollution Control Law
Total nitrogen*1,3	t	212	211	251	✔
Total phosphorus*1,3	t	3.7	3.6	4.2	✔

• *1 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *2 Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd. and major consolidated group companies
• *3 Chiba Complex, Aichi Complex, Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd. and major consolidated group companies

Air Pollutant Emissions*1,2	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
SOx	t	8,635	8,263	10,528	✔	Laws: Air Pollution Control Act
NOx	t	20,536	19,719	18,880	✔
Soot/dust	t	223	194	257	✔
VOC	t	5,146	6,265	7,235	✔

• *1 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *2 Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd. and major consolidated group companies

Waste*1,2,3	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Total waste	t	223,427	236,263	225,375	✔	Total amount of industrial waste and specially controlled industrial waste Laws: Waste Management and Public Cleansing Law
Reduced by intermediate treatment	t	80,367	86,197	82,554	✔
Recycled	t	111,446	113,599	106,908	✔
Final disposal	t	38	82	25	✔
Final disposal rate	%	0.017	0.035	0.011	✔

• *1 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *2 Historical data has been revised.
• *3 Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.

Hazardous Waste*1,2,3	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Total waste	t	4,187	7,978	6,970	✔	Specially controlled industrial waste is defined as hazardous waste. Laws: Waste Management and Public Cleansing Law
Reduced by intermediate treatment	t	0	3,318	1,693	✔
Recycled	t	4,187	4,651	5,277	✔
Final disposal	t	0	9	0	✔
Final disposal rate	%	0.000	0.108	0.000

• *1 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *2 Historical data has been revised.
• *3 Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.

Non-Hazardous Waste*1,2,3	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Total waste	t	219,897	228,989	218,405	✔	Industrial waste is defined as hazardous waste. Laws: Waste Management and Public Cleansing Law
Reduced by intermediate treatment	t	96,768	102,173	80,861	✔
Recycled	t	120,511	123,903	101,632	✔
Final disposal	t	38	73	25	✔
Final disposal rate	%	0.017	0.032	0.011

• *1 In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• *2 Historical data has been revised.
• *3 Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.

CFC Leakage*	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
	t	1.0	0.5	0.3		Figures based on CFC method reporting
	CO2e	1,852	1,097	586

• * Hokkaido Refinery, Chiba Complex, Aichi Complex, Tokuyama Complex, Lubricants Research Laboratory, Advanced Technology Research Laboratories, Performance Materials Laboratories、Shimonoseki Solar Power Plant 2

Number of Environmental Disorders*	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
	cases	3	1	2

• * Idemitsu and major group companies

Acquisition Status of ISO 14001 (Environmental Management Systems)	Unit	As of June 30,2021	As of June 30,2022	As of June 30,2023	Independent Practitioner’s Assurance	Note
Domestic business sites	sites	21	19	17		More than 94% of the Idemitsu Group’s CO2 emissions are from sites that have acquired ISO 14001 certificates.
Overseas business sites	sites	13	13	13

Refinery and Complexes

Hokkaido Refinery	Unit	FY2020	FY2021	FY2022
Crude oil throughput	thousand kL	4,598	6,824	5,973
Energy consumption (Crude oil equivalent)	thousand kL*1	373	497	456
Unit energy consumption	kL/thousand kL*2	8.98	8.77	8.83
Seawater	thousand t	111,202	148,045	135,851
Industrial water	thousand t	12,608	13,034	13,105
Tap water	thousand t	65	60	65
Underground water	thousand t	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
Soot/dust	t	6	8	3
Wastewater	thousand kL	123,875	161,139	148,994
COD	t	18	18	18
Total nitrogen	t	-	-	-
Total phosphorus	t	-	-	-
Total waste	t	10,571	6,461	5,911
Reduced by intermediate treatment	t	1,763	1,929	1,387
Recycled	t	7,412	3,866	3,837
Final disposal	t	3	2	2

• *1 The figure for energy consumption (crude oil equivalent) is calculated by subtracting the amount of by-product energy sold.
• *2 Unit energy consumption = Crude oil equivalent (L) / Atmospheric distillation equipment converted throughput (kL)

Chiba Complex	Unit	FY2020	FY2021	FY2022
Crude oil throughput	thousand kL	9,937	9,321	10,660
Petrochemical product manufacturing (Ethylene equivalent)	thousand t	1,776	1,834	1,874
Energy consumption (Crude oil equivalent)	thousand kL*1	1,426	1,388	1,473
Unit energy consumption	kL/thousand kL*2	8.97	9.03	8.83
	kL/t*3	0.34	0.33	0.32
Seawater	thousand t	468,093	436,446	456,730
Industrial water	thousand t	19,641	19,886	19,889
Tap water	thousand t	-	-	-
Underground water	thousand t	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
Soot/dust	t	125	94	122
Wastewater	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
Total waste*4	t	76,054	89,501	77,105
Reduced by intermediate treatment*4	t	1,133	3,692	1,720
Recycled*4	t	45,918	52,206	41,864
Final disposal	t	6	13	5

• *1 The figure for energy consumption (crude oil equivalent) is calculated by subtracting the amount of by-product energy sold.
• *2 Unit energy consumption = Crude oil equivalent (L) / Atmospheric distillation equipment converted throughput (kL)
• *3 Unit energy consumption = Crude oil equivalent (L) / Ethylene equivalent production (t)
• *4 Historical data has been revised.

Aichi Complex	Unit	FY2020	FY2021	FY2022
Crude oil throughput	thousand kL	7,474	5,740	7,879
Energy consumption (Crude oil equivalent)	thousand kL*1	667	547	702
Unit energy consumption	kL/thousand kL*2	9.24	9.17	9.56
Seawater	thousand t	239,380	198,874	237,441
Industrial water	thousand t	12,256	11,978	13,629
Tap water	thousand t	114	189	165
Underground water	thousand t	-	-	-
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
Soot/dust	t	44	37	50
Wastewater	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
Total waste	t	80,775	78,586	68,666
Reduced by intermediate treatment	t	51,124	50,159	45,396
Recycled	t	28,707	26,716	21,988
Final disposal	t	26	67	17

• *1 The figure for energy consumption (crude oil equivalent) is calculated by subtracting the amount of by-product energy sold.
• *2 Unit energy consumption = Crude oil equivalent (L) / Atmospheric distillation equipment converted throughput (kL)

Tokuyama Complex	Unit	FY2020	FY2021	FY2022
Petrochemical product manufacturing (Ethylene equivalent)	thousand t	1,536	1,796	1,523
Energy consumption (Crude oil equivalent)	thousand kL*1	778	904	861
Unit energy consumption	kL/t*3	0.51	0.50	0.57
Seawater	thousand t	397,463	426,763	396,776
Industrial water	thousand t	11,502	11,308	10,159
Tap water	thousand t	201	191	202
Underground water	thousand t	-	-	-
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
Soot/dust	t	14	13	14
Wastewater	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
Total waste	t	24,924	30,501	28,405
Reduced by intermediate treatment	t	15,001	20,487	17,782
Recycled	t	9,920	9,968	10,623
Final disposal	t	2	0	0

• *1 The figure for energy consumption (crude oil equivalent) is calculated by subtracting the amount of by-product energy sold.
• *3 Unit energy consumption = Crude oil equivalent (L) / Ethylene equivalent production (t)

Discharge and Transfer of PRTR-Designated Substances in FY2022

PRTR No.	CAS No.	Substance name	Unit	Total/ Discharged amount– Emissions to atmosphere (standard emission intensity)	Total/ Discharged amount– Emissions to public water bodies (standard emission intensity)	Total/ Discharged amount– Emissions to soil (standard emission intensity)	Total/ Transferred amount– Disposed amount (standard emission intensity)	Total
1	-	Water-soluble compounds of zinc	t	0.0	1.7	0.0	0.0	1.7
13	75-05-8	Acetonitrile	t	0.0	0.0	0.0	2.7	2.7
20	141-43-5	2-aminoethanol	t	0.0	0.0	0.0	51.7	51.7
33	1332-21-4	Asbestos	t	0.0	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	0.0	4.4	4.4
53	100-41-4	Ethylbenzene	t	10.5	0.0	0.0	6.9	17.4
80	1330-20-7	Xylene (also known as dimethyl benzene)	t	24.4	0.1	0.0	6.8	31.2
132	-	Cobalt and its compounds	t	0.0	0.0	0.0	25.0	25.0
186	75-09-2	Dichloromethane (also known as methylene chloride)	t	0.2	0.0	0.0	10.6	10.7
190	77-73-6	Dicyclopentadiene	t	0.3	0.0	0.0	0.0	0.3
232	68-12-2	N, N-dimethylformamide	t	0.0	0.0	0.0	17.2	17.2
240	100-42-5	Styrene	t	19.7	0.0	0.0	1.3	21.0
242	-	Selenium and its compounds	t	0.0	0.0	0.0	0.9	0.9
243	-	Dioxins	mg-TEQ	0.0	1.1	0.0	0.0	1.1
245	62-56-6	Thiourea	t	0.0	0.4	0.0	0.0	0.4
260	1897-45-6	2,4,5,6-tetrachloroisophthalonitrile (also known as chlorothalonil or TPN)	t	0.0	0.0	0.0	40.0	40.0
262	127-18-4	Tetrachloroethylene	t	0.0	0.0	0.0	0.1	0.1
281	79-01-6	Trichloroethylene (also known as trichlene)	t	0.0	0.0	0.0	0.6	0.6
296	95-63-6	1,2,4-trimethylbenzene	t	3.5	0.0	0.0	0.0	3.6
297	108-67-8	1,3,5-trimethylbenzene	t	0.4	0.0	0.0	0.0	0.4
300	108-88-3	Toluene (also known as methyl benzene)	t	100.4	0.0	0.0	52.3	152.7
349	108-95-2	Phenol	t	0.2	0.0	0.0	4.6	4.8
389	112-02-7	Hexadecyltrimethylammonium chloride	t	0.0	10.6	0.0	0.0	10.6
392	110-54-3	N-hexane	t	235.2	0.0	0.0	8.7	243.9
400	71-43-2	Benzene	t	26.0	0.0	0.0	0.0	26.1
405	-	Boron compounds	t	0.0	0.0	0.0	7.4	7.4
412	-	Manganese and its compounds	t	0.0	0.0	0.0	10.9	10.9
453	-	Molybdenum and its compounds	t	0.0	0.0	0.0	88.1	88.1

• * In principle, the scope of the FY2022 data for Seibu Oil Co.,Ltd. covers the period from June 2022 to March 2023, after it became a consolidated group company. Seibu Oil Co.,Ltd. is not included in the scope of FY2020 and 2021 data, as it was not consolidated.
• * Scope of Reporting: Idemitsu, consolidated refining companies (TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.) and major consolidated group companies
• * Chemicals are not listed if the total volume of discharge and transfer is less than 0.1 ton per year.
• * Figures presented above may not be consistent with the totals since they are rounded off to one decimal place.
• * Act on the Assessment of Releases of Specified Chemical Substances in the Environment and the Promotion of Management Improvement

• The scope of data is Idemitsu Kosan non-consolidated. However, the reporting scope of some data point differs from the others. For details, please refer to the notes for each data point.
• The data for FY2022 indicated with (✔) has been assured by the Independent Practitioner.

Status of Employees *As of March 31, 2023			Unit	FY2020	FY2021	FY2022	Inde-pendent Practi-tioner’s Assu-rance	Note
Number of employees (combined number of members and employees in managerial positions)			People	4,943	5,112	4,981	✔	[Scope of Reporting] Idemitsu hires (employees, seniors, full-time contract employees, and advisors) Excluding employees seconded to other companies *In FY2021 calculation method for “Seniors” changed. *In FY2020 calculation method for “Of the number of employees in managerial positions, lower posts than deputy general manager” changed.
		Men	People	4,355	4,460	4,316	✔
		Women	People	588	652	665	✔
		Percentage of women	%	11.9	12.8	13.4	✔
		Foreign nationals	People	35	41	36
		Percentage of foreign nationals	%	0.7	0.8	0.7
		Seniors (Over 60 years old)	People	600	634	433
		Seniors (Over 65 years old)	People	-	112	160
Number of members			People	3,959	4,137	4,029
		Men	People	3,395	3,510	3,397
		Women	People	564	627	632
		Percentage of women	%	14.2	15.2	15.7
Number of employees in managerial positions (managers, general managers)			People	984	975	952	✔
		Men	People	960	950	919	✔
		Women	People	24	25	33	✔
		Percentage of women	%	2.4	2.6	3.5	✔
Of the numbers of employees in managerial positions, higher posts than general manager			People	37	39	44
		Men	People	34	37	41
		Women	People	3	2	3
		Percentage of women	%	8.1	5.1	6.8
Of the numbers of employees in managerial positions, lower posts than deputy general manager			People	947	935	908
		Men	People	926	912	878
		Women	People	21	23	30
		Percentage of women	%	2.2	2.5	3.3
Average age			years old	42.1	42.1	42.2	✔
		Men	years old	42.3	42.4	42.5	✔
		Women	years old	40.3	40.1	40.5	✔
Average years employed			years	19.4	18.6	18.5	✔
		Men	years	19.7	19.0	18.9	✔
		Women	years	17.3	16.1	16.1	✔
Average wage	Basic wages received by men	Management -level employees	yen / month	689,656	691,727	688,951		[Scope of Reporting] Idemitsu hires (employees, seniors, full-time contract employees, and advisors)
		Staff members	yen / month	368,413	371,354	342,687
	Bonuses received by men	Management -level employees	yen / year	4,139,552	4,131,412	5,201,780
		Staff members	yen / year	1,831,199	2,048,839	2,401,878
	Basic wages received by women	Management -level employees	yen / month	675,789	676,088	664,407
		Staff members	yen / month	342,353	334,948	319,638
	Bonuses received by women	Management -level employees	yen / year	4,261,621	4,302,342	4,699,277
		Staff members	yen / year	1,666,345	1,827,210	1,995,833
Status of employees with disabilities *As of June 1, 2023		Percentage	%	2.30	2.35	2.50	✔	[Scope of Reporting] Scope of Reporting: Idemitsu hires (employees, seniors, full-time contract employees, and advisors) Including employees seconded to other companies, but excluding employees seconded from other companies Based on the calculation method of the Ministry of Health, Labour and Welfare
		Number	People	119	124	125
Number of employees (consolidated)			People	14,044	14,209	14,363		[Scope of Reporting] Idemitsu and consolidated subsidiaries (FY2020: 63 companies, FY2021: 62 companies, FY2022: 63 companies)
Turnover rate (including honorable retreat)			%	3.18	3.97	4.22		[Scope of Reporting] Idemitsu hires (employees, seniors, full-time contract employees, and advisors) Excluding employees seconded to other companies
Voluntary retirement rate			%	1.42	2.13	2.29
New graduate retention rate (average for newly hired employees between 2018 and 2020)			%	89.4	89.6	89.3	✔	[Scope of Reporting] Results are from Idemitsu's direct hires Retention rate: Average rate of three-year retention of new graduates in the relevant fiscal years Turnover rate: Average rate of new graduates within three years of employment in the relevant fiscal year
Turnover rate of new graduates (average for newly hired employees between 2018 and 2020)			%	8.8	7.9	10.0	✔

Status of Recruitment		Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Recruitment of new graduates *Hired in April 2023		People	151	131	87	✔	[Scope of Reporting] Results are from Idemitsu's direct hires Data in parentheses FY2022 are for college graduates or higher.
					(48)	✔
	Men	People	127	107	70	✔
					(32)	✔
	Women	People	24	24	17	✔
					(16)	✔
	Percentage of women	%	15.9	18.3	19.5	✔
					(33.3)	✔
	Foreign nationals	People	2	1	1	✔
					(1)	✔
	Percentage of foreign nationals	%	1.3	0.8	1.1	✔
					(2.1)	✔
Career recruitment *Hired in FY2022		People	91	62	33	✔

Work-Life Balance Support Systems and Usage Numbers		Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Maternity leave	Women	People	35	30	31	✔	[Scope of Reporting] Idemitsu hires (employees, including employees seconded to other companies) *Seniors and re-employed are included before FY2020.
Childcare leave		People	90	108	168	✔
	Men	People	22	49	142	✔
	Women	People	68	59	26	✔
Rate of employees taking childcare leave		%	-	-	86	✔
	Men	%	-	-	84	✔
	Women	%	-	-	96	✔
Rate of employees returning to work after childcare leave		%	-	-	100	✔
	Men	%	-	-	100	✔
	Women	%	100	100	100	✔
Nursing care leave		People	2	5	8	✔
	Men	People	2	3	7	✔
	Women	People	0	2	1	✔
Reduced working hours for parenting		People	72	62	50	✔
	Men	People	1	0	3	✔
	Women	People	71	62	47	✔
Leave to care for sick/ injured child		People	133	226	228	✔
	Men	People	61	133	121	✔
	Women	People	72	93	107	✔
Family care leave		People	37	43	56	✔
	Men	People	25	35	44	✔
	Women	People	12	8	12	✔
Telecommuting		People	3,592	4,581	4,592	✔
	Men	People	3,086	3,976	4,033	✔
	Women	People	506	605	559	✔
Self-development leave of absence		People	2	0	3	✔
	Men	People	2	0	1	✔
	Women	People	0	0	2	✔
Volunteer leave of absence		People	1	0	0
	Men	People	0	0	0
	Women	People	1	0	0
"Cessation from work by employees whose spouses are transferred to countries abroad		People	4	8	10
	Men	People	0	0	0
	Women	People	4	8	10

Overtime Work and Annual Paid Leave	Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Average overtime work hours per employee	hours / month	20.0	20.8	20.5	✔	[Scope of Reporting] Idemitsu hires (employees) Excluding employees on leave and seconded employees Results of overtime work is excluding employees in managerial positions *Seniors and re-employed are included before FY2020.
Average annual paid leave taken by an employee	Days	14.1	15.3	16.9	✔
Average usage rate of annual paid leave per employee	%	69.5	75.3	83	✔

Training Results		Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Training hours	Total	hours	57,581	81,653	74,722	✔	[Scope of Reporting] Results for Idemitsu non-consolidated from training organized by the Human Resources Department *In FY2021,included 3 in-house training courses (Smart Yorozu Juku,Business Design Juku,CNX Center Juku)
	Per person	hours	10.9	15.6	12.8	✔
Amount of investment in training	Total	thousand yen	256,000	235,400	247,810	✔
	Per person	thousand yen	48	45	43	✔

Occupational Accident Results		Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Occupational accidents frequency rate	Employees	-	0.30	0.74	0.15	✔	[Scope of Reporting] Hokkaido Refinery, Chiba Complex (Including Prime Polymer Co., Ltd. Anesaki Works), Aichi Complex, Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co., Ltd. *Until FY2021, Chiba Complex includes BASF Idemitsu Co., Ltd.. Employees: Including employee of group refinery companies listed above Employee of partner companies: Including employees of Idemitsu Plantec Group [Reporting period] From January to December [Calculation Method] Frequency rate= (Number of casualties due to occupational accidents/hours of actual work) ×1,000,000 TRIFR= (Number of overall occupational accidents/hours of actual work)×1,000,000 LTIFR= (Number of accidents resulting in lost work days/hours of actual work)×1,000,000 Severity rate= (Number of lost working days/hours of actual work) ×1,000
	Employees of partner companies	-	0.79	0.41	0.46	✔
Fatalities due to occupational accidents	Employees	People	0	0	0	✔
	Employees of partner companies	People	0	1	0	✔
TRIFR （Total Recordable Injury Frequency Rate）	Employees	-	1.35	2.51	1.62	✔
	Employees of partner companies	-	2.71	2.41	2.66	✔
LTIFR （Lost Time Incident Frequency Rate）	Employees	-	0.30	0.74	0.15	✔
	Employees of partner companies	-	0.79	0.41	0.46	✔
Severity rate	Employees	-	0.00	0.01	0.00	✔
	Employees of partner companies	-	0.05	0.52	0.02	✔

Number of Accidents Related to Safety		Unit	FY2020	FY2021	FY2022	Independent Practitioner’s Assurance	Note
Serious accidents		Cases	0	0	0	✔	[Scope of Reporting] Hokkaido Refinery, Chiba Complex (Including Prime Polymer Co., Ltd. Anesaki Works), Aichi Complex, Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co., Ltd. *Until FY2021, Chiba Complex includes BASF Idemitsu Co., Ltd.. Partner companies: Including Idemitsu Plantec Group [Reporting Period] From January to December
	Of the numbers mentioned above, partner companies	Cases	0	0	0	✔
Fatal accidents		Cases	0	1	1
	Of the numbers mentioned above, partner companies	Cases	0	1	1
Accidents resulting in lost time injuries		Cases	13	11	27
	Of the numbers mentioned above, partner companies	Cases	11	6	15
Accidents not resulting in lost time injuries		Cases	34	41	41
	Of the numbers mentioned above, partner companies	Cases	27	29	22

Acquisition Status of ISO 9001 (Quality Management Systems)	Unit	As of June 30, 2021	As of June 30, 2022	As of June 30, 2023	Independent Practitioner’s Practitioner’s Assurance	Note
Domestic and overseas business sites	sites	34	33	32

Results Related to Health		Unit	FY2020	FY2021	FY2022	Note
Periodic medical checkup participation rate		%	100.0	99.9	99.9	[Scope of Reporting] Idemitsu hires, including employees seconded to other companies but excluding employees seconded from other companies and overseas workers
Ratio of employees who underwent follow-up medical checkups		%	89.1	89.1	89.0	[Scope of Follow-up Medical Checkups] Including non-mandatory items
Ratio of employees requiring blood pressure control measures		%	0.2	0.2	0.1	[Calculation Criteria] Individuals whose systolic blood pressure is 180mmHg or higher or whose diastolic blood pressure is 110mmHg or higher
Ratio of employees requiring diabetes control measures		%	0.5	0.6	0.5	[Calculation Criteria] Individuals with an HbA1c level of 8.0% or higher
Ratio of employees who received health guidance after being diagnosed as high risk		%	94.7	92.3	94.6	[Calculation Criteria] Individuals considered as requiring control measures for BMI, blood pressure, ALT/ HDL cholesterol, LDL cholesterol, neutral lipid or HbA1c in order to meet Idemitsu’s standards
Ratio of employees who receive ongoing assistance after being diagnosed as high risk		%	63.0	62.3	75.2	[Scope of Reporting] Individuals under Idemitsu hires who are supervised by Head Office’s medical office (including employees seconded to other companies but excluding employees seconded from other companies and overseas workers)
Ratio of employees not considered as requiring weight control measures		%	65.9	66.2	65.2	[Calculation Criteria] Individuals whose BMI ranges from 18.5 to below 25.0
The result of the medical examination questionnaire	Ratio of employees who smokes	%	22.0	20.9	20.6
	Ratio of employees who maintain exercise habits	%	34.0	36.7	37.0	[Calculation Criteria] Individuals who engage in at least 30 minutes of physical exercise twice a week
	Ratio of employees with no sleeping issues inhibiting sufficient rest	%	78.4	78.1	75.9
	Ratio of employees who maintain a regular drinking habit	%	19.1	15.1	17.8	[Calculation Criteria] Individuals who habitually drink alcohol in a quantity equivalent to at least 360ml of rice wine on a daily basis or several days a week
	Ratio of employees who eat breakfast	%	76.3	75.9	74.9	[Calculation Criteria] Individuals who eat breakfast at least five times a week
Ratio of employees deemed to practice robust self healthcare		%	26.2	27.6	28.0	[Calculation Criteria] Individuals with no lifestyle-related issues, such as smoking, a lack of exercise, poor sleeping, a regular drinking habit, or failure to eat breakfast
Ratio of employees who took leave due to mental health issues		%	1.5	1.5	1.7	[Scope of Reporting] Idemitsu hires, including employees seconded to other companies and overseas workers but excluding employees seconded from other companies [Calculation Criteria] Individuals who took at least a full month of leave due to mental health issues (two or more rounds of such leave taken within a single fiscal year are counted separately)
Employee stress checks	Participation rate	%	89.4	89.3	88.8	[Scope of Reporting] Idemitsu hires, including overseas workers but excluding employees seconded to other companies and employees seconded from other companies
	Ratio of employees exposed to a high level of stress	%	7.3	7.7	7.8	[Scope of Reporting] Individuals who underwent stress checks [Criteria for a High Level of Stress] Based on standards recommended by the Ministry of Health, Labour and Welfare
Presenteeism		%	-	-	19.2	[Calculation Criteria] A drop degree of the productivity by the aggravation of the mental and physical health condition. The standard uses the University of Tokyo (SPQ).

• The scope of data is Idemitsu Kosan non-consolidated.

Composition of Executive *As of June 30, 2023		Unit	FY2020	FY2021	FY2022	FY2023
Directors		People	12	11	11	11
	Of the numbers mentioned above, Outside Directors	People	5 (Female:1, Non-Japanese:1)	4 (Female:2, Non-Japanese:1)	4 (Female:2)	4 (Female:2)
Audit & Supervisory Board Members		People	4	4	4	4
	Of the numbers mentioned above, Outside Audit & Supervisory Board Members	People	2	2	2	2

Number of Convened Meetings of the Board of Directors, etc.		Unit	FY2020	FY2021	FY2022
Board of Directors	Number of meetings	Times	16	15	15
	Average rate of attendance	%	99.5	100.0	99.4
Audit & Supervisory Board	Number of meetings	Times	17	16	16
	Average rate of attendance	%	100	100	100

Compliance	Unit	FY2020	FY2021	FY2022	Note
Serious compliance violations	Cases	0	0	2	[Scope of Reporting] Idemitsu and affiliated companies
Number of cases of corruption and bribery	Cases	0	0	0
Number of employee disciplinary actions related to corruption and bribery	Cases	0	0	0
Tax compliance violations	Cases	0	0	0	[Scope of Reporting] Idemitsu and affiliated companies substantially controlled by Idemitsu (Companies of which　Idemitsu hold more than 50% shares except for Astomos Energy Corporation)

Information Security	Unit	FY2020	FY2021	FY2022	Note
Serious information security violations	Cases	0	0	0	[Scope of Reporting] Idemitsu and affiliated companies
Serious violations of personal information	Cases	0	0	0

Intellectual Property		Unit	FY2020	FY2021	FY2022	Note
Number of patent publications	Japan	Cases	223	254	231	[Scope of Reporting] Idemitsu Kosan Co., Ltd., Idemitsu Unitech Co., Ltd., IDEMITSU FINE COMPOSITES CO., LTD., Solar Frontier K.K, NIPPON GREASE Co., Ltd., Idemitsu Engineering Co., Ltd., IDEMITSU CREDIT CO., LTD.
	Overseas	Cases	161	137	196
Number of registered patents held	Japan	Cases	2,102	2,050	2,012
	Overseas	Cases	3,444	3,538	3,626

Data Sheet will be updated in November 2023.

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• * [Scope of Reporting] Hokkaido Refinery, Chiba Complex (Including Prime Polymer Co., Ltd. Anesaki Works, BASF Idemitsu Co., Ltd.), Aichi Refinery (currently Aichi Complex), Tokuyama Complex, TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co., Ltd.
  • Employees: Including employee of group refinery companies listed above.
  • Employee of partner companies: Including employees of Idemitsu Plantec Group.
  [Reporting Period] From January to December
• * Figures presented as averages for all industries for business sites of 100 or more employees are cited from the Ministry of Health, Labour and Welfare’s Survey on Industrial Accidents.

• * Scope of calculation: Idemitsu Kosan Co.,Ltd., Idemitsu Unitech Co., Ltd., IDEMITSU FINE COMPOSITES CO., LTD., Solar Frontier K.K, NIPPON GREASE Co., Ltd., Idemitsu Engineering Co., Ltd., IDEMITSU CREDIT CO.,LTD.

Independent Practitioner's Assurance Report (PDF: 3.14MB)