Please scroll horizontally to look at table below.

Category			Scope of coverage	Unit	FY Mar/2024	FY Mar/2025	FY Mar/2026	External Assurance	Remarks
Energy Consumption				GJ					*1
		Mitsui & Co., Ltd.	Head office and all offices in Japan		120,219	123,424	123,454
			Time charter contracts, etc. under operational control		-	-	13,674,379		*8
			Subtotal		120,219	123,424	13,797,834
		Consolidated	Subsidiaries		16,360,527	16,006,875	17,144,195
			Un-incorporated JVs		14,866,839	16,372,178	776,311		*9
			Subtotal		31,227,367	32,379,053	17,920,506
		Total			31,347,586	32,502,477	31,718,340
	(Breakdown)	Fuels			23,101,455	23,994,121	24,888,711
		Electricity			7,626,436	7,993,270	6,029,329
		Steam, Heat			619,695	515,086	800,300
		Power Consumption	Head office, all offices in Japan, and Subsidiaries	MWh	648,116	950,973	693,074
		Renewable electricity (RE) Consumption			60,977	71,627	62,903
		RE Consumption rate		%	9.4	7.5	9.1

Please scroll horizontally to look at table below.

Category			Scope of coverage	Unit	FY Mar/2024	FY Mar/2025	FY Mar/2026	External Assurance	Remarks
Greenhouse Gas (GHG) Emissions				thousand t-CO2e					*1
	Scope1	Mitsui & Co., Ltd.	Head office and all offices in Japan		0	0	0
			Chartering, etc. over which the company has controlling influence		-	-	814		*8
			Subtotal		0	0	815
		Consolidated	Subsidiaries		384	369	389
			Un-incorporated JVs		2,253	2,434	94		*9
			Subtotal		2,637	2,803	483
		Total			2,637	2,803	1,298
	Scope2 (location based)	Mitsui & Co., Ltd.	Head office and all offices in Japan		0	0	5
			Subtotal		0	0	5
		Consolidated	Subsidiaries		239	243	291
			Un-incorporated JVs		173	150	0		*9
			Subtotal		412	393	291
		Total			412	393	296
	Scope2 (market based)	Mitsui & Co., Ltd.	Head office and all offices in Japan		-	-	2
			Subtotal		-	-	2
		Consolidated	Subsidiaries		-	-	268
			Un-incorporated JVs		-	-	0		*9
			Subtotal		-	-	268
		Total			-	-	270
	Scope1+2 (location based)	Mitsui & Co., Ltd.	Head office and all offices in Japan		0	0	6
			Chartering, etc. over which the company has controlling influence		-	-	814		*8
			Subtotal		0	0	820
		Consolidated	Subsidiaries		623	613	680
			Un-incorporated JVs		2,426	2,584	94		*9
			Subtotal		3,049	3,196	774
	Scope1+2 (location based)	Total		thousand t-CO2e	3,049	3,196	1,594
	Scope1+2 (market based)	Mitsui & Co., Ltd.	Head office and all offices in Japan	thousand t-CO2e	-	-	2
			Chartering, etc. over which the company has controlling influence		-	-	814		*8
			Subtotal		-	-	817
		Consolidated	Subsidiaries		-	-	657
			Un-incorporated JVs		-	-	94		*9
			Subtotal		-	-	751
	Scope1+2 (market based)	Total		thousand t-CO2e	-	-	1,568
	Scope1+2 (Pre-credit Reference Values for FY Mar/2023 and FY Mar/2024)	Total		thousand t-CO2e	3,055	3,202	-
	Scope1 (Break Down) (before credit off-set adjustment)	CO2	Carbon dioxide	thousand t-CO2e	1,719	2,677	1,274
		CH4	Methane		917	119	19		*2
		N2O	Carbon monoxide		1	4	3		*2
		HFCs	Hydrofluorocarbon		0	3	2		*2
		PFCs	Perfluorocarbon		0	0	0		*2
		SF6	Sulfur hexafluoride		0	0	0		*2
		NF3	Nitrogen trifluoride		0	0	0		*2
	Scope1 by Area (before credit off-set adjustment)	Asia Pacific			1,969	2,218	1,059
		Americas			354	264	216
		Europe, Middle East, and Africa			315	321	23
	Scope2 by Area (location based, before credit off-set adjustment)	Asia Pacific			322	160	155
		Americas			85	229	132
		Europe, Middle East, and Africa			11	10	9
	Scope2 by Area (market based, before credit off-set adjustment)	Asia Pacific			322	160	147
		Americas			85	229	115
		Europe, Middle East, and Africa			11	10	8
Greenhouse Gas (GHG) Emissions (scope3)				thousand t-CO2e					*1, 3
	Category1	Purchased goods and services	Consolidated (Metal Resources, Chemicals, Food)		33,470	33,385	36,221		*4
	Category2	Capital goods	Consolidated (Tangible Fixed Assets)		936	977	800
	Category3	Fuels not included in Scope 1 and 2 and energy-related activities	Consolidated (Purchased Electricity [including trading], and Fuel Usage)		2,904	4,078	5,688
	Category4	Upstream transportation and distribution	Head office and all offices in Japan (Domestic Transportation Commissioned by the Company as Cargo Owner) April~December		-	-	13		*11
			Head office and all offices in Japan (Domestic Transportation Commissioned by the Company as Cargo Owner) Annual Total		19	18	16
			Consolidated (International Transportation Arranged by the Company and Certain Consolidated Subsidiaries, excluding single-vessel chartering arrangements over which the Company has controlling influence)		1,461	1,302	919
			Consolidated (International Transportation Arranged by the Company and Certain Consolidated Subsidiaries)			616	Included in Scope 1		*8
			Total		1,480	1,936	935
	Category5	Waste generated in operations	Consolidated (Waste Managed by the Company and Certain Consolidated Subsidiaries)		0	0	1
	Category6	Business travel	-		84	86	255		*5
	Category7	Employee commuting	-		1	1	5		*5
	Category8	Upstream leased assets	-		Not applicable	Not applicable	Not applicable
	Category9	Downstream transportation and distribution	-		Included in cat.4	Included in cat.4	Included in cat.4
	Category10	Processing of sold products	Consolidated (Copper Concentrate, Iron Ore, Coking Coal, Iron Scrap, etc.)		30,993	31,877	1,714		*6
	Category11	Use of sold products	Consolidated (Fuel, Mobility, Fertilizer, etc.)		98,847	98,004	91,610		*4
	Category12	End-of-life treatment of sold products	Consolidated (Waste Plastics, etc.)		188	204	181
	Category13	Downstream leased assets	Consolidated (Mobility, etc.)		523	677	648
	Category14	Franchise	-		Not applicable	Not applicable	Not applicable
	Category15	Investments	Consolidated (Metal Resources, Energy, Thermal Power Generation Businesses, and Other Related Company Businesses)		30,903	25,883	25,998
			Consolidated (Un-incorporated JVs without controlling power)		-	-	2,398		*5
			Consolidated (Other Investments Not Included Above)		-	-	678		*10
			Total		30,903	25,883	29,074		*7
	Scope3	Total		thousand t-CO2e	200,329	197,107	167,133
Offset Credit Details				thousand t-CO2e
	Credit Details	Mitsui & Co., Ltd.	Compliance Credit (J-Credit, etc)		6	6	2
		Consolidated	Compliance Credit		-	-	4
		Scope 3 Category 15 investments	Compliance Credit		-	-	275
Absorption Amount				thousand t-CO2e
		Forestry business			▲ 262	▲ 494	▲ 576
		Total			▲ 262	▲ 494	▲ 576
Reduction Contribution Amount
	Reduction Contribution Amount	RE business			▲ 3,297	▲ 2,684	▲ 3,252
		Emissions credit business			▲ 979	▲ 768	▲ 603
		Next-gen fuel business			▲ 143	▲ 44	▲ 505
		Total			▲ 4,419	▲ 3,496	▲ 4,360

Please scroll horizontally to look at table below.

Please scroll horizontally to look at table below.

Category			Scope of coverage	Unit	FY Mar/2024	FY Mar/2025	FY Mar/2026	External Assurance	Remarks
Water Withdrawal				thousand m3					*2, 14
		Mitsui & Co., Ltd.	Head office and all offices in Japan		77	83	84
		Consolidated	Subsidiaries and Un-incorporated JVs		269,135	310,132	497,259
		Total			269,212	310,215	497,343
	(Breakdown)	Industrial water, water utility			12,298	9,073	238,468
		Pumped groundwater			13,854	12,860	2,841
		Rivers, lakes			1,754	2,703	2,134
		Sea			232,635	279,287	253,604
		Rainwater			5,871	2,957	17
		Others			2,799	3,335	279
Water Withdrawal in Water-Stressed Areas									*2, 13, 14
	High risk (40 -80 %)	Consolidated	Subsidiaries and Un-incorporated JVs	Locations	10	13	16
				Volume of water withdrawn (thousand m3)	1,499	2,775	236,495
	Very high risk (>80 %)			Locations	7	8	9
				Volume of water withdrawn (thousand m3)	1,141	1,133	896
Water Discharge				thousand m3
		Mitsui & Co., Ltd.	Head office and all offices in Japan		69	83	84
		Consolidated	Subsidiaries and Un-incorporated JVs		12,164	20,224	245,729
		Total			12,234	20,307	245,813		*2, 14
	(Breakdown)	External disposal facilities (sewers)			1,441	1,437	235,739
		Groundwater			377	439	390
		Rivers, lakes			2,919	2,902	2,035
		Sea			2,748	10,001	7,636
		Others			4,748	5,528	11
Water recycling				thousand m3					*2, 14
	Recycled Volume	Mitsui & Co., Ltd.	Head office and all offices in Japan		23	24	26
		Consolidated	Subsidiaries and Un-incorporated JVs		6,277	6,559	104

Please scroll horizontally to look at table below.

Category			Scope of coverage	Unit	FY Mar/2024	FY Mar/2025	FY Mar/2026	External Assurance	Remarks
Waste				t					*2
	Waste amount	Mitsui & Co., Ltd.	Head office and all offices in Japan		331	346	348
		Consolidated	Subsidiaries and Un-incorporated JVs		-	975,826	1,033,476
	of which, recycled amount	Mitsui & Co., Ltd.	Head office and all offices in Japan		-	285	316
		Consolidated	Subsidiaries and Un-incorporated JVs		-	236,075	302,462
	of which, hazardous waste (Specially Managed Industrial Waste)	Mitsui & Co., Ltd.	Head office and all offices in Japan		0.5	0.7	0.6
		Consolidated	Subsidiaries and Un-incorporated JVs		-	25,863	31,811
Pollution Prevention				t					*2
	NOx Emissions	Mitsui & Co., Ltd.	Head office and all offices in Japan		1	1	2
		Consolidated	Subsidiaries and Un-incorporated JVs		-	7,914	2,847
	SOx Emissions	Mitsui & Co., Ltd.	Head office and all offices in Japan		0	0	0
		Consolidated	Subsidiaries and Un-incorporated JVs		-	349	314
	VOC Emissions	Mitsui & Co., Ltd.	Head office and all offices in Japan		0	0	0
		Consolidated	Subsidiaries and Un-incorporated JVs		-	1,200	269
Paper Consumption
	Paper consumption		Head office and domestic branches	thousand sheets (A4 size equivalent)	9,840	7,803	6,669
	Intensity		(thousand sheets per employee)	thousand sheets /employee	2.63	2.08	1.77

*1 [Main Calculation Standards and Emission Factors]
Non-consolidated and consolidated: Operational control approach. Calculated based on GHG Protocol "Emission Factors from Cross Sector Tools_V2.0_0", International Energy Agency (IEA) Emission Factors 2024, and the IPCC 2006 Guidelines for National Greenhouse Gas Inventories.
For the non-consolidated basis, calculations up to FY March 2025 were conducted in accordance with the Act on the Rational Use of Energy (Energy Conservation Act) and the Act on Promotion of Global Warming Countermeasures.
*2 Certain unincorporated joint ventures (Un-incorporated JVs) and consolidated subsidiaries are included in the reporting scope.
*3 ·Where double counting of the same emission source among companies within the reporting boundary is evident, emissions are allocated to one entity only.
·Where it is not possible to identify into which final products sold intermediate products are processed, such intermediate products are excluded from the calculation scope.
·Trading transactions are defined as transactions in which products manufactured, produced, or processed by third parties are purchased by the Company and sold to processors, end consumers, etc.
Transactions with so-called traders, where processors or end consumers cannot be identified, are excluded.
*4 Categories 1 and 11: Energy-related emissions are calculated in accordance with the guidelines of the International Petroleum Industry Environmental Conservation Association (IPIECA).
*5 Categories 6 and 7: Calculated with reference to the Ministry of the Environment's Emission Factor Database for Accounting of Greenhouse Gas Emissions throughout the Supply Chain.
Calculated on a non-consolidated basis through FY March 2025 and on a consolidated basis from FY March 2026.
*6 Category 10: Emissions from iron ore and coking coal used as steelmaking raw materials are calculated by allocating emissions generated during crude steel production based on weight ratios.
*7 Category 15: Primarily based on actual data, with some estimates derived from LCI databases (e.g., IDEA) and input-output models.
*8 From FY March 2026, non-consolidated time-chartered vessels have been reclassified from Scope 3 Category 4 to Scope 1.
*9 From FY March 2026, emissions from unincorporated joint ventures (Un-incorporated JVs) over which the Company does not have operational control have been reclassified from Scope 1+2 to Scope 3 Category 15.

In addition, Scope 1+2 emissions from unincorporated joint ventures over which the Company has operational control are now accounted for at 100% instead of on an equity-share basis.
*10 From FY March 2026, all material business investments have been added to Scope 3 Category 15 as consolidated (other investments not included above).
*11 For FY March 2026, third-party assurance was obtained for non-consolidated domestic outsourced transportation (where the Company acts as the shipper) for the period from April to December.
*12 GHG emissions from the combustion of biomass fuels such as wood and plant residues, which are not included in any Scope 1-3 emissions for FY March 2026, amounted to 64 thousand t-CO₂e.
*13 Data are obtained either directly from operational sites of the relevant businesses or, in some cases, only from the headquarters locations of business entities (parent companies/SPCs).
*14 Where wastewater volume is unknown, wastewater volume is assumed to equal water withdrawal volume for calculation purposes.