The Environment

Scope of Reporting Environmental Data

The scope of environmental data reporting covers a total of 61 companies, including the Company and its consolidated subsidiaries. For details, please refer to the following link.

Subsidiaries and affiliates （69KB）

Environmental Management

Environmental Management System

Status of Environmental Management System Certification (FY2023)

Approximately 80% of the Group’s major production bases have established an environmental management system (EMS) structure for environmental management.

(Unit : Locations)

Certification	Domestic	Overseas
ISO 14001	30	15
Eco-Action 21	9	0
Green Management Certification	2	0
Total	56

Material Balance

INPUT

					Unit	FY2019	FY2020	FY2021	FY2022	FY2023
INPUT	Total energy input			PJ	18	17	18	17.5	17.4
			Fossil fuel consumption	Thousand kL	121	113	115	108	115
			Biomass fuel consumption	MJ	-	-	-	-	1
			Purchased electric power	GWh	1,352	1,305	1,358	1,333	1,270
			Thermal power generation	GWh	5	1	1.4	1.0	1.1
			Biomass power generation	MWh	–	–	902	181	241
			Hydroelectric power generation	GWh	39	48	73	69	62
			Solar power generation	MWh	335	388	1,564	1,881	2,675
			Purchased steam flow	GJ	388	300	98	0	0
		Water resources			Million m³	106	100	103	101	101
			Seawater	Million m³	93	88	90	89	87
			Besides seawater	Million m³	13	13	13	12	13
		Raw material use			Thousand tons	1,058	972	1,089	1,041	936
			Raw materials	Thousand tons	806	715	807	783	698
			Auxiliary materials	Thousand tons	162	179	192	173	146
			Heat treatment of items received	Thousand tons	89	77	89	83	90
			Packaging materials	Thousand tons	2	1	1.5	1.2	1.2
		Amount of waste received			Thousand tons	1,556	1,440	1,590	1,680	1,675
			Waste	Thousand tons	1,420	1,304	1,476	1,557	1,575
			Statutory recycled items received	Thousand tons	96	98	74	93	92
			Contaminated soil	Thousand tons	40	38	40	29	7
			Fluorocarbon throughput	tons	552	604	779	917	954

The DOWA Group Business Activities

			Unit	FY2019	FY2020	FY2021	FY2022	FY2023
Within business areas	Waste heat power generation	GWh	83	80	98	87	71
Within business areas		Waste heat utilization	TJ	427	443	1,007	934	1,121

OUTPUT

									Unit	FY2019	FY2020	FY2021	FY2022	FY2023
OUTPUT	Total greenhouse gas emissions							Thousand tons-CO_²	1,903	1,815	1,724	1,713	1,649
			Electric power source					Thousand tons-CO_²	714	678	659	674	626
			Fossil fuel source					Thousand tons-CO_²	330	314	326	313	323
			Waste source					Thousand tons-CO_²	860	823	738	726	701
		Amount of electric energy sold							GWh	0.8	1.2	1.8	3.0	8.3
		Product quantity							Thousand tons	945	886	965	928	880
		Chemical substance emissions							tons	1,773	1,542	1,489	1,526	2,160
		Drainage water discharge							Million m³	117	114	100	99	98
			Seawater					Million m³	93	87	89	88	87
			Excluding seawater					Million m³	24	27	11	11	11
		Recycling and waste amount							Thousand tons	1,001	1,086	1,040	1,029	1,124
			Recycled amount					Thousand tons	634	612	645	638	733
				Thermal recycling			Thousand tons	352	344	353	352	471
					inside the Group	Thousand tons		45	45	41	421
					outside the Group	Thousand tons		299	309	311	50
				Material recycling			Thousand tons	282	269	291	286	261
					inside the Group	Thousand tons		180	200	192	159
					outside the Group	Thousand tons		89	91	93	102
			Waste generated					Thousand tons	367	473	396	391	392

Note:

With regard to CO₂ emissions, in principle the DOWA Group seeks to multiply amounts of electricity purchased, fossil fuel consumed, and waste received by the emission factor put forth in the Law Concerning the Promotion of Measures to Cope with Global Warming.
Regarding CO₂ emissions derived from waste received, because the calculation terms are as of the time this report was prepared, numbers may not necessarily match those reported to government agencies, which are calculated at a different time.
Due to differences in the classification of waste in Japan and overseas and to the difficulty in setting an appropriate emission factor for waste received at overseas business sites, only the portion of CO₂ emissions originating from waste from domestic business locations is given.

Atmosphere and Water Management

Status of Management Targets for Reducing Environmental Impact (FY2023)

(Unit : Locations)

	Management Objectives Based on Agreements with Local Governments	Self-Imposed Strict Management Goal
Atmosphere	6	14
Water management	6	19

Trend in Atmospheric Emissions by Substance

(Unit：tons)

Item	FY2019	FY2020	FY2021	FY2022	FY2023
HCI	25	25	39	36	35
NOx	449	439	480	530	595
SOx	153	163	124	150	177
Soot and dust	37	39	33	25	24

Trend in Water Emissions by Substance

(Unit : tons)

Item	FY2019	FY2020	FY2021	FY2022	FY2023
COD	427	360	423	222	178
BOD	70	66	50	52	69

Conservation of Environment

Managing the Use of Water Resources

Water Resources

In FY2023, the water input was 101 million m³, almost the same amount as in the previous year. Freshwater use amounted to 13 million m³, accounting for just over 10% of total water use, an increase of 6% on the previous year.

Freshwater Usage (Quantity of Water Intake)

(Unit : Million m³)

Item	FY2019	FY2020	FY2021	FY2022	FY2023
River water	4.8	4.8	4.9	4.4	4.8
Industrial water	4.5	4.6	4.7	4.7	4.6
Ground water	3.0	2.8	2.8	2.5	2.8
Tap water	0.5	0.4	0.5	0.5	0.5
Total	12.9	12.7	12.9	12.1	12.7

Total Volume of Water Discharged

Total drainage was 98 million m³in FY2023, about the same amount as in FY2022.

Climate Change

Greenhouse Gas Emissions

Trend in CO2 Emissions

Group-wide greenhouse gas emissions in FY2023 were approximately 1,649 thousand tons of CO₂, a decrease of 3.7% from FY2022. By source, fossil fuel-derived approximately 20%, waste-derived approximately 43%, and electricityderived accounted for approximately 38%.

(Unit : Thousand tons-CO₂)

Item		Item	FY2019	FY2020	FY2021	FY2022	FY2023
Scope1	From fossil fuels	329.6	313.9	326.1	313.1	322.7
Scope1	Scope1	From waste	859.7	822.9	738.2	725.9	701.1
Scope2	From electricity	714.1	678.1	659.5	674.4	625.5
Total CO₂emissions		Total CO2 emissions	1,903.4	1,814.9	1,723.8	1,713.4	1,649.3

(*) Coverage of 90% or higher, location-based

Electric Power Source

Fossil Fuel Source

Note : Above figures use the following abbreviations.
HD: DOWA Holdings Co., Ltd.; ES: Environmental Management & Recycling Business; MM: Nonferrous Metals Business; EL: Electronic Materials Business; MT: Metal Processing Business; TH: Heat Treatment Business; GL: Global Business

Utilization of Natural Energies

Trend in Renewable Energy Generation

	Unit	FY2019	FY2020	FY2021	FY2022	FY2023
Hydroelectric power generation	GWh	38.7	47.9	45.4	68.8	61.9
Solar power generation	MWh	335	388	1,564	1,881	2,712
Biogas power generation	MWh	-	-	902	2,267	3,376
Waste heat power generation	GWh	79	80	87	87	71

Resource Recycling

INPUT

Raw Materials

In FY2023, raw material use amounted to 936 thousand tons, a year-on-year decrease of approximately 10%. Of this, approximately 27% was recycled raw materials.

Waste Received

In FY2023, the amount of waste received came to 1,675 thousand tons, which is almost the same as in the previous year. Of this, approximately 89% was waste received from outside the Group.

OUTPUT

Recycling

In FY2023, thermal recycling amounted to 471 thousand tons, a year-on-year increase of approximately 33%. Material recycling totaled 261 thousand tons, a year-on-year decrease of approximately 9%.

Waste Generated

In FY2023, the amount of waste disposed of was 392 thousand tons, which is almost the same as in the previous year.
The volume of waste discharged includes incineration residue and other residues generated after contracted treatment in our main business of waste disposal.

(Unit : Thousand tons)

			FY2020	FY2021	FY2022	FY2023
Domestic		Domestic	427.3	378.2	378.0	373.4
Overseas		Overseas	46.0	17.6	12.7	18.2
Total		Total	473.3	395.9	390.7	391.6
	Slag	85.6	88.5	90.4	78.9
		Hazardous waste*	9.1	10.1	11.6	17.6

*Hazardous waste…Refers to waste as defined by the laws of each country. In Japan, it refers to specially-controlled industrial waste.

Policy

Policy

Policy

サブ-ナビゲーション

Scope of Reporting Environmental Data

Environmental Management

Environmental Management System

Status of Environmental Management System Certification (FY2023)

Material Balance

INPUT

The DOWA Group Business Activities

OUTPUT

Atmosphere and Water Management

Status of Management Targets for Reducing Environmental Impact (FY2023)

Trend in Atmospheric Emissions by Substance

Trend in Water Emissions by Substance

Conservation of Environment

Managing the Use of Water Resources

Water Resources

Freshwater Usage (Quantity of Water Intake)

Total Volume of Water Discharged

Climate Change

Greenhouse Gas Emissions

Trend in CO2 Emissions

Electric Power Source

Fossil Fuel Source

Utilization of Natural Energies

Trend in Renewable Energy Generation

Resource Recycling

INPUT

Raw Materials

Waste Received

OUTPUT

Recycling

Waste Generated

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