Environmental Performance Data Highlights

GHG emissions throughout the value chain

In order to enhance the credibility of this report, FY2025 figures marked with have received independent assurance from SOCOTEC Certification Japan Co., Ltd. in accordance with the International Standard on Assurance Engagements (ISAE) 3000 and ISO14064-3.

Independent Assurance Report (PDF format, 2.85 MB)

	Boundary	Unit*¹	FY2021	FY2022	FY2023	FY2024	FY2025
Total　Scope 1² ⁵、 2³ ⁵and 3⁴ ⁶	Consolidated	t-CO2e	1,776,362	2,052,415	2,015,773	2,045,357	2,273,031
Total　Scope 1 and 2	Consolidated	t-CO2e	43,325	42,108	40,336	34,479	32,334
Scope 1	Consolidated	t-CO2e	7,003	7,306	6,475	6,892	5,077
Scope 2　Market-based	Consolidated	t-CO2	36,321	34,801	33,861	27,587	27,257
Location-based	Consolidated	t-CO2	52,268	51,981	62,152	64,337	66,072
Scope 3　Total	Consolidated	t-CO2	1,733,038	2,010,308	1,975,437	2,010,878	2,240,697
Scope 3　Upstream (other indirect emissions)	Consolidated	t-CO2	947,406	1,163,918	1,217,373	1,293,923	1,416,682
1. Purchased goods and services	Consolidated	t-CO2	874,226	1,077,869	1,086,796	1,184,289	1,255,011
2. Capital goods	Consolidated	t-CO2	48,577	59,811	105,149	80,603	132,454
3. Fuel- and energy- related activities not included in Scope 1 and 2	Consolidated	t-CO2	8,650	8,703	10,170	10,730	11,077
4. Upstream transportation and distribution	Consolidated	t-CO2	7,171	10,192	6,939	8,161	7,854
5. Waste generated in operations	Consolidated	t-CO2	721	804	904	1,359	930
6. Business travel	Consolidated	t-CO2	1,469	1,313	1,525	1,649	1,768
7. Employee commuting	Consolidated	t-CO2	6,589	5,223	5,890	7,131	7,588
8. Upstream leased assets	Consolidated	t-CO2	(Included in Scope 1,2)				(Included in Scope 1,2)
Scope 3 Downstream (other indirect emissions)	Consolidated	t-CO2	785,632	846,389	758,063	716,955	824,014
9. Downstream transportation and distribution	Consolidated	t-CO2	5,827	29,717	56,382	77,311	59,421
10. Processing of sold products	Consolidated	t-CO2	(Not applicable)				(Not applicable)
11. Use of sold products*⁴	Consolidated	t-CO2	774,263	807,817	689,517	632,093	756,841
12. End-of-life treatment of sold products	Consolidated	t-CO2	5,540	8,854	12,164	7,551	7,752
13. Downstream leased assets	Consolidated	t-CO2	(Included in No. 11)				(Included in No. 11)
14. Franchises	Consolidated	t-CO2	(Not applicable)
15. Investments	Consolidated	t-CO2	(Not applicable)

*1Due to the number of displayed digits, the total individual values and those for each line may differ in some cases.

*2Direct emissions of greenhouse gases from the organization itself. Includes greenhouse gases from non-energy sources.

*3Indirect emissions due to the use of electricity and heat supplied by other companies. Number in <> is by location basis.

*4Indirect emissions not included in Scopes 1 and 2.

*5Reporting boundary for Scopes 1 and 2 emissions: Hitachi High-Tech Group companies (excluding two overseas subsidiaries)

*6 Reporting boundary for Scope 3 emissions: Hitachi High-Tech, Hitachi High-Tech Group companies in Japan, and manufacturing group companies outside Japan.
However, the scope of coverage for the following categories is as follows:

Category 1: Excluding Hitachi High-Tech’s head office, sales group companies, and service group companies.
Category 3: All sites worldwide excluding Hitachi High-Tech Ireland and Hitachi High-Tech Israel.

*7The Category 1 calculation method changed from FY2021.

*8Category 9 is calculated from FY2021.

Scope 3 emissions calculation method (PDF format, 480 KB)

Environmental load from operations

Independent Assurance Report (PDF format, 2.85 MB)

Energy Consumption

		Boundary	Unit	FY2021	FY2022	FY2023	FY2024	FY2025
Energy Consumption	Total Energy Consumption	Consolidated	MWh	124,746	125,638	146,779	155,565	162,774
	Renewable Energy	Consolidated	MWh	45,044	48,099	63,512	90,623	99,625
	Non-renewable Energy	Consolidated	MWh	79,702	77,539	83,267	64,942	63,149
	Renewable Energy Ratio	Consolidated	％	36.1	38.3	43.3	58.3	61.2

Waste

Waste and valuables generated

		Boundary	Unit	FY2021	FY2022	FY2023	FY2024	FY2025
Waste Generated	Total Weight	Consolidated	t	2,173	2,412	2,710	2,686	2,851
Recycle	Total Weight	Consolidated	t	2,108	2,308	2,696	2,685	2,851
Landfil		Consolidated	t	1.8	1.5	1.6	0.7	0.4

Promotion of Plastic Resource Circulation

		Boundary	Unit	FY2021	FY2022	FY2023	FY2024	FY2025
Plastic Waste	Generated	Major Sites	t	-	346	301	545	645
	Recycled	Major Sites	t	-	343	298	544	644
	Recycling Rate	Major Sites	％	-	99.3	99.1	99.9	99.9

* Reporting boundary: Hitachi High-Tech's main production sites and offices

Water Resources

Water Withdrawal

		Boundary	Unit	FY2021	FY2022	FY2023	FY2024	FY2025
Water Withdrawal	Total	Consolidated	m³	485,594	484,568	559,389	594,689	529,447
Water Withdrawal	Recycled water (Recycled from the wastewater of other organizations)	Consolidated	m³	1,675	2,000	300	2,546	4,711

Water Discharge

		Boundary	Unit	FY2021	FY2022	FY2023	FY2024	FY2025
Water Discharge	Total	Consolidated	m³	448,824	420,930	474,472	500,728	476,912

Water Consumption

		Boundary	Unit	FY2021	FY2022	FY2023	FY2024	FY2025
Water Consumption	Total	Consolidated	m³	36,769	63,638	84,917	93,961	52,535

Management of Chemical Substances

		Boundary	Unit	FY2021	FY2022	FY2023	FY2024	FY2025
Chemical substances discharged	Total	Manufacturing Sites	t	3.8	3.8	4.4	4.0	4.1
	Chemical substances discharged (VOC,etc)	Manufacturing Sites	t	3.8	3.8	4.4	4.0	4.1
	SOx (sulfur oxides)	Manufacturing Sites	t	0	0	0	0	0
	NOx (nitrogen oxides)	Manufacturing Sites	t	0	0	0	0	0

* Reporting boundary: Hitachi High-Tech manufacturing sites and Group manufacturing companies in Japan

		Boundary	Unit	FY2021	FY2022	FY2023	FY2024	FY2025
Quantity of Chemical Substances Subjected to PRTR Law Emitted and Moved	Total	Manufacturing Sites	kg	1,099	926	1,353	1,860	1,125

* Reporting boundary: Hitachi High-Tech manufacturing sites and Group manufacturing companies in Japan

Environmental Accounting

Since fiscal 2001, our group has introduced environmental accounting as a management tool for environmental conservation activities. We examine the effectiveness of environmental conservation outcomes in relation to the costs incurred, and evaluate our group’s initiatives in environmental activities.

In order to achieve the goals of the shared long-term environmental targets of the Hitachi Group, "Hitachi Environmental Innovation 2050" (1. Decarbonization, 2. Circular Economy, and 3. Nature Positive), the Environmental Committee, along with its subordinate subcommittees and meetings, implements measures and manages targets. Through the execution of these measures and the setting of target values, we strive to accurately grasp environmental conservation costs and enhance the effectiveness of environmental conservation.

In fiscal 2025, among the costs within the business site area, environmental conservation costs increased by 223 million yen compared to the previous year. This was due to factors including the replacement of air conditioning equipment in the ND Building at the Naka site.

Additionally, management activity cost (costs associated with management activities for environmental conservation) increased by 2,047 million yen compared to the previous year, due to factors including the expansion of initiatives to promote environmental conservation activities.

Environmental investment costs decreased by 2,944 million yen compared to the previous year, mainly because large-scale investments had been made in the previous year.

* The charts below have been formulated in compliance with the Ministry of the Environment's Environmental Accounting Guidebook II.

* Calculation Standards

Scope of calculation:
Hitachi High-Tech Group (head offices, branches in Japan, manufacturing division in Japan), manufacturing Group companies in Japan, headquarters of sales Group Companies, and headquarters of service Group company (Hitachi High-Tech Fielding Corporation)
Period covered:
April 1, 2024 - March 31, 2025
Costs:
Includes labor costs, R&D costs, depreciation costs, etc.
Effects:
Net earnings effect: Earnings from operations relating to environmental conservation
Cost reduction effect: Sum by which costs are reduced as a result of measures to reduce the environmental burden (does not include expected effects)

Environmental Conservation Costs

Classification		FY2024	FY2025	Increase/ Decrease	Notes
1. Business area costs Cost of minimizing the environmental burden arising from business activities in each business area		1,553	1,832	279	Costs associated with reducing environmental risks
Breakdown	Pollution prevention costs Cost of preventing pollution, including air, water, and soil pollution	150	173	24
	Environmental conservation costs Costs associated with the prevention of global warming and energy conservation	1,182	1,404	223
	Resource recycling costs Costs associated with resource conservation and waste reduction and recycling	222	255	33
2. Upstream and downstream costs Cost of minimizing the upstream/downstream environmental burden arising from business activities		317	40	-277
3. Administration costs Cost of management activities focused on environmental conservation		900	2,947	2,047	Costs associated with promoting activities
4. R&D costs Cost of R&D activities		1,587	1,393	-194
5. Social activity costs Cost of social projects		47	131	84
6. Other Environmental remediation costs		1	1	0
Total expenses of environmental conservation (1-6)		4,405	6,344	1,939
All environmental conservation costs - environmental conservation effects (economic effects)		4,333	6,259	1,926

* There were no environmental fines or penalties during the fiscal year.

* The totals of each item and the values in the total column may differ due to the number of digits displayed.

Unit: ¥1 million/year

Environmental Conservation Benefit

Item		Conservation Benefit (FY2024)	Conservation Benefit (FY2025)
Economic benefit	Net earnings effect	38	35
	Cost reduction effect	34	50
	Total	72	85

Unit: ¥1 million/year

Environmental Investment Costs
Classification	FY2024	FY2025	Increase/Decrease
Total environmental investment	4,361	1,418	-2,943

Unit: ¥1 million/year

Environmental Performance Data Highlights

GHG emissions throughout the value chain

Environmental load from operations

Energy Consumption

Waste

Waste and valuables generated

Promotion of Plastic Resource Circulation

Water Resources

Water Withdrawal

Water Discharge

Water Consumption

Management of Chemical Substances

Environmental Accounting

Environmental Conservation Costs

Environmental Conservation Benefit

Breakdown of Environment-related Investment by Purpose (Year-on-Year Change)

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