Please scroll horizontally to look at table below.

Category			Scope of coverage	Unit	FY Mar/2023	FY Mar/2024	FY Mar/2025	External Assurance	Remarks
Energy Consumption				GJ
		Mitsui & Co., Ltd	Head office and all offices in Japan		133,026	120,219	123,424
		Consolidated	Subsidiaries		17,077,300	16,360,527	16,006,875
			Un-incorporated JVs		17,119,511	14,866,839	16,372,178
		Total			34,329,837	31,347,586	32,502,477
	(Breakdown)	Fuels			25,186,671	23,101,455	23,994,121
		Electricity			8,983,625	7,626,436	7,993,270
		Steam, Heat			159,541	619,695	515,086
		Power Consumption	Head office, all offices in Japan, and Subsidiaries	MWh	655,011	648,116	950,973
		Renewable electricity (RE) Consumption			48,639	60,977	71,627
		RE Consumption rate		%	7.4	9.4	7.5
	Intensity	Mitsui & Co., Ltd	Head office and domestic branches (per square meter)	GJ/m2	1.24	1.12	1.16

Please scroll horizontally to look at table below.

Category			Scope of coverage	Unit	FY Mar/2023	FY Mar/2024	FY Mar/2025	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
		Consolidated	Subsidiaries		349	384	369
			Un-incorporated JVs		2,657	2,253	2,434
		Total			3,006	2,637	2,803
	Scope2	Mitsui & Co., Ltd	Head office and all offices in Japan		0	0	0
		Consolidated	Subsidiaries		225	239	243
			Un-incorporated JVs		175	173	150
		Total			400	412	393
	Scope1+2	Total		thousand t-CO2e	3,406	3,049	3,196
	Scope1&2 Emissions before off-set credit adjustment	Mitsui & Co., Ltd	Head office and all offices in Japan	thousand t-CO2e	6	6	6
	Scope1+2 (before off-set credit adjustment)	Total		thousand t-CO2e	3,412	3,055	3,202
	Scope1 (Break Down) (before credit off-set adjustment)	CO2	Carbon dioxide	thousand t-CO2e	1,975	1,719	2,677
		CH4	Methane		1,029	917	119		*2
		N2O	Carbon monoxide		2	1	4		*2
		HFCs	Hydrofluorocarbon		0	0	3		*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			2,315	1,969	2,218
		Americas			345	354	264
		Europe, Middle East, and Africa			347	315	321
	Scope2 by Area (before credit off-set adjustment)	Asia Pacific			329	322	160
		Americas			65	85	229
		Europe, Middle East, and Africa			11	11	10
	GHG Intensity	Mitsui & Co., Ltd	Head office and all offices in Japan (per square meter)	t-CO2e/m2	0.000	0.000	0.000
Greenhouse Gas (GHG) Emissions (scope3)				thousand t-CO2e					*3
	Category1	Purchased goods and services	Consolidated (Metal Resources, Chemicals, Food)		35,330	33,470	33,385
	Category2	Capital goods	Consolidated (Tangible Fixed Assets)		761	936	977
	Category3	Fuels not included in Scope 1 and 2 and energy-related activities	Consolidated (Purchased Electricity [including trading], and Fuel Usage)		1,470	2,904	4,078
	Category4	Upstream transportation and distribution	Head office and all offices in Japan (Domestic Transportation Commissioned by the Company as Cargo Owner)		19	19	18
			Consolidated (International Transportation Arranged by the Company and Certain Consolidated Subsidiaries)		3,188	1,461	1,918
	Category5	Waste generated in operations	Consolidated (Waste Managed by the Company and Certain Consolidated Subsidiaries)		0	0	0
	Category6	Business travel	Head office and all offices in Japan (Employee Business Travel)		67	84	86
	Category7	Employee commuting	Head office and all offices in Japan (Employee Commuting)		1	1	1
	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.)		32,185	30,993	31,877
	Category11	Use of sold products	Consolidated (Fuel, Mobility, Fertilizer, etc.)		83,490	98,847	98,004
	Category12	End-of-life treatment of sold products	Consolidated (Waste Plastics, etc.)		221	188	204
	Category13	Downstream leased assets	Consolidated (Mobility, etc.)		1,216	523	677
	Category14	Franchise	-		Not applicable	Not applicable	Not applicable
	Category15	Investments	Consolidated (Metal Resources, Energy, Thermal Power Generation Businesses, and Other Related Company Businesses)		33,576	30,903	25,883
	Scope3	Total		thousand t-CO2e	191,524	200,329	197,107
Offset Credit Details				t-CO2e
	Credit Details	Mitsui & Co., Ltd	J-Credit		2,707	3,492	5,259
			J-VER		3,000	2,500	384
Absorption Amount				thousand t-CO2e
		Forestry business			▲ 245	▲ 262	▲ 494
		Total			▲ 245	▲ 262	▲ 494
Reduction Contribution Amount
	Reduction Contribution Amount	RE business			▲ 2,163	▲ 3,297	▲ 2,684
		Emissions credit business			▲ 284	▲ 979	▲ 768
		Next-gen fuel business			▲ 10	▲ 143	▲ 44
		Total			▲ 2,457	▲ 4,419	▲ 3,496
GHG Impact (Scope1&2 (after off-set credit adjustment) + Scope3 Cat15 - Absorption Amount - Reduction Contribution Amount)					34,280	29,272	25,089

Please scroll horizontally to look at table below.

Category			Scope of coverage	Unit	FY Mar/2023	FY Mar/2024	FY Mar/2025	External Assurance	Remarks
Water Withdrawal				thousand m3
		Mitsui & Co., Ltd	Head office and all offices in Japan		70	77	83
		Consolidated	Subsidiaries and Un-incorporated JVs		287,727	269,135	310,132		*2
		Total			287,798	269,212	310,215
	(Breakdown)	Industrial water, water utility			18,446	12,298	9,073
		Pumped groundwater			13,432	13,854	12,860
		Rivers, lakes			2,458	1,754	2,703
		Sea			244,361	232,635	279,287
		Rainwater			6,958	5,871	2,957
		Others			2,143	2,799	3,335
Water Withdrawal in Water-Stressed Areas									*4
	High risk (40 -80 %)	Consolidated	Subsidiaries and Un-incorporated JVs	Locations	8	10	13
				Volume of water withdrawn (thousand m3)	132	1,499	2,775
	Very high risk (>80 %)			Locations	4	7	8
				Volume of water withdrawn (thousand m3)	1,016	1,141	1,133
Water Discharge				thousand m3
		Mitsui & Co., Ltd	Head office and all offices in Japan		64	69	83
		Consolidated	Subsidiaries and Un-incorporated JVs		16,749	12,164	20,224		*2
		Total			16,814	12,234	20,307		*5
	(Breakdown)	External disposal facilities (sewers)			1,454	1,441	1,437
		Groundwater			431	377	439
		Rivers, lakes			3,007	2,919	2,902
		Sea			9,473	2,748	10,001
		Others			2,448	4,748	5,528
Water recycling				thousand m3
	Recycled Volume	Mitsui & Co., Ltd	Head office and all offices in Japan		19	23	24
		Consolidated	Subsidiaries and Un-incorporated JVs		6,302	6,277	6,559		*2

Please scroll horizontally to look at table below.

Category			Scope of coverage	Unit	FY Mar/2023	FY Mar/2024	FY Mar/2025	External Assurance	Remarks
Waste									*6
	Waste amount	Mitsui & Co., Ltd	Head office and all offices in Japan	t	322	331	346
		Consolidated	Subsidiaries and Un-incorporated JVs		-	-	975,826		*2
	of which, recycled amount	Mitsui & Co., Ltd	Head office and all offices in Japan		-	-	285
		Consolidated	Subsidiaries and Un-incorporated JVs		-	-	236,075		*2
	of which, hazardous waste (Specially Managed Industrial Waste)	Mitsui & Co., Ltd	Head office and all offices in Japan		0.6	0.5	0.7
		Consolidated	Subsidiaries and Un-incorporated JVs		-	-	25,863		*2
Pollution Prevention				t					*6
	NOx Emissions	Mitsui & Co., Ltd	Head office and all offices in Japan		2	1	1
		Consolidated	Subsidiaries and Un-incorporated JVs		-	-	7,914		*2
	SOx Emissions	Mitsui & Co., Ltd	Head office and all offices in Japan		0	0	0
		Consolidated	Subsidiaries and Un-incorporated JVs		-	-	349		*2
	VOC Emissions	Mitsui & Co., Ltd	Head office and all offices in Japan		0	0	0
		Consolidated	Subsidiaries and Un-incorporated JVs		-	-	1,200		*2
Paper Consumption
	Paper consumption		Head office and domestic branches	thousand sheets (A4 size equivalent)	11,339	9,840	7,803
	Intensity		(thousand sheets per employee)	thousand sheets /employee	3.00	2.63	2.08

*1 [Standards/Guidelines for Scope1+2 calculation]
Consolidation: GHG Protocol Control Approach.
Reference to GHG Protocol "Emission Factors from Cross Sector Tools_V2.0_0", International Energy Agency (IEA) Emissions Factors 2024, IPCC 2006 Guidelines for National Greenhouse Gas Inventories.
Non-consolidated: Act on Rationalizing Energy Use, Act on Promotion of Global Warming Countermeasures.
*2 Some Un-incorporated JVs and Consolidated subsidiaries are included
*3 ·Mitsui and consolidated subsidiaries (including Un-incorporated JVs) are calculated according to the control standards (same as Scope 1 and Scope 2)
·Where the same emission source is clearly double-counted among the companies included in the scope, the calculation is consolidated into one side
·In cases where it is not possible to determine into which final product an intermediary product is processed, it is excluded from the calculation
·Trading of third-party products refers to transactions where Mitsui purchases products produced/manufactured/processed by third parties and sells them to processors or end users; transactions with so-called "traders" whose processors or end users cannot be identified are excluded
·Category 1 and 11: Energy-related emissions are calculated in accordance with the International Petroleum Industry Environmental Conservation Association (IPIECA) guidelines
·Category 10: For iron ore and metallurgical coal (ferrous raw materials), emissions from crude steel production are allocated proportionally by weight
·Category 6 and 7: Emissions are calculated with reference to the Ministry of the Environment's Supply Chain Emissions Calculation Database (Japan)
·Category 15: Some estimates are based on LCA databases (such as IDEA) and input-output models
*4 In some cases, data was obtained directly from project sites, while in other cases, data was only attainable via the head office (parent company/SPC) of the company or companies involved in the project.
*5 Water discharge volume is assumed to be equal to water withdrawal in case of no discharge data
*6 From the fiscal year ending March 2025, the aggregation scope has been revised from "the Head Office and Kansai Branch" to include "the Head Office and all domestic branches". Figures for March 2023 and 2024 have been restated accordingly.