FY2023
Environmental Activities and Data
(Climate Change)
April 1, 2023 – March 31, 2024

Oct. 4, 2024

1Environmental Data
１．Energy Consumption
This graph indicates the energy consumption of the entire DISCO Group and the sales intensity.
Compared to the previous fiscal year, the total energy consumption and sales intensity have decreased.

*1 Fossil fuels: Natural gas, city gas, LPG, gasoline, kerosene, diesel.
*2 Renewable energy: Implementing renewable energy and solar power generation.
*3 Intensity: Sales intensity (total energy consumption divided by consolidated sales).

Energy consumption amount and breakdown

Purchased electricity (non-renewable energElectricity

Purchased electricity (renewable energy)
Solar power (consumed by DISCO)
Total electricity consumption

Fossil fuels(MWh)
FY2019FY2020

FY2021

FY2022

FY2023201,879

216,837

241,641

209,776

173,055

00

7,778

59,444

66,498

1,966

2,287

2,113

3,639

3,652

203,845

219,124

251,531

272,860

243,205

Natural gas, city gas

9,981

10,768

10,538

11,32813,399

LPG

6,905

8,639

11,852

12,374

13,649Gasoline1,252

1,082

1,272

1,115

1,238

Kerosene

2331

20

16

18

Diesel475

469

700

523

801

Total fossil fuel consumption

Total energy consumption amount
Renewable energy consumption amount

18,636

20,987

24,38225,355

29,105

222,481240,111275,913298,215

272,310

1,966

2,287

9,890

63,08470,150

Renewable energy consumption ratio (%)

0.9

1.0

3.6

21.2

25.8

Intensity (MWh/million yen)

1.58

1.31

1.09

1.05

0.89

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2．Greenhouse Gas Emissions① Greenhouse Gas Emissions due to DISCO’s Business Activities (Scopes 1, 2)This graph indicates the amount of greenhouse gas emitted by the entire DISCO Group and the salesintensity. We are carrying out energy-saving activities, utilizing renewable energy, and have establishedsolar power generation facilities, and compared to the previous fiscal year, CO2 emissions (the total
amount for Scopes 1 and 2) and the sales intensity have decreased．

*1 t-CO2e: Greenhouse gas emissions represented as CO2 equivalents.
*2 Scope 1 is greenhouse gas emissions mainly from fossil fuels, freon gases, etc., and Scope 2 is market-based greenhouse gas emissions fromelectricity consumption.
*3 Intensity: Sales intensity (total amount of Scopes 1 and 2 divided by consolidated sales).

Data for each office (Scopes 1 + 2)

（t-CO2e）
FY2019Head Office / R&D Center, Haneda R&D Center
Kuwabata Plant, Kure Plant

Domestic

Chino Plant
Other
Domestic total

Overseas

FY2021

FY2022

FY2023

8,894

9,140

9,996

12,791

8,815

32,16430,34036,98827,542

26,193

615

728

1,493

1,905

2,307

187

208

260

337

898

41,86040,417

48,73742,576

38,214

DISCO HI-TEC AMERICA, INC.

739

588564603350

DISCO HI-TEC EUROPE GmbH

1,689

1,888255

252245DISCO HI-TEC (SINGAPORE) PTE. LTD.

547502488497830

DISCO HI-TEC CHINA CO., LTD.

322406671702925

DISCO HI-TEC TAIWAN CO., LTD.

404523423654879

DISCO HI-TEC KOREA Corporation

163274297332352

DISCO HI-TEC (MALAYSIA) SDN. BHD.

－－629140

DISCO HI-TEC (THAILAND) CO., LTD.

－－1210DISCO HI-TEC (VIETNAM) CO., LTD.

－－2624Overseas totalTotal

FY2020－3,8644,182

2,7073,078

3,753

45,724

44,59951,44445,654

41,967* Shows the total amount of Scope 1 and Scope 2 emissions (market-based) for each office.

② Supply Chain Emissions (Scopes 1 – 3)
With the increasing severity of the global climate change problem, corporations have been asked to beaware of not only the amount of their own greenhouse gas emissions, but also the amount of emissions
along their entire supply chain. Since FY2014, DISCO has been calculating the amount of greenhousegas emissions generated by activities that surround the company's entire supply chain.
In FY2023, DISCO’s entire supply chain generated 1,128 thousand t-CO2e of greenhouse gas (Scopes1 – 3).

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Among the total greenhouse gas emissions throughout DISCO's supply chain, CO2 emissions related tobusiness activities generated by other companies (Scope 3) made up 1,086 thousand t-CO2e. The
majority of emissions came from the “Use of sold products,” which made up approximately 89% of thetotal emissions.
In the future, we will share information with related stakeholders and promote the planning anddevelopment of new energy-saving products in order to push towards a reduction in greenhouse gas
emissions across our entire supply chain.
Scope 3 - Calculations by category（t-CO2e）Category
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FY2019Purchased goods & services
Capitalgoods

FY2020

FY2021

FY2022

FY2023

8,181

13,84917,25915,34913,41955,42650,364

120,533

10,42538,0503

Fuel- and energy-related activities

5,668

6,178

7,171

7,983

8,288

4

Upstream transportation & distribution

7,646

13,527

17,84018,91820,781

5

Waste generated in operations

8070

90

93

546

6

Business travel680

712

735

781

1,509

7

Employee commuting

1,236

1,291

1,332

1,416

836

8

Upstream leased assets

ーーーー

ー

9

Downstream transportation & distribution

838

1,125

1,260

1,232

1,149

10

Processing of sold products

11

Use of sold products

ーーーー

ー

539,416

996,401

1,250,915

1,343,888

1,001,053

12

End of life treatment of sold products

11

19

24

21

17

13

Downstream leased assets

102

46

110

143

143

14

Franchises

ーーーー

ー

15

Investmentsーーーーー

619,283

1,083,583

1,417,269

1,400,249

1,085,791Total* “ー” indicates categories that are not applicable.

FY2023: Scopes 1, 2, 3 emissions

Calculations by scope（t-CO2e）
FY2019FY2020

FY2021

FY2022

FY2023

Scope 1

7,154

5,739

6,738

8,434

Scope 2 (market-based)

38,57038,86044,70637,22035,598 ☑

Scope 2 (location-based)

ーーーー

46,090 ☑

Scope 3

619,283

1,083,583

1,417,269

1,400,249

1,085,791

Total (Scope 1+2+3)

665,008

1,128,182

1,468,713

1,445,902

1,127,758

0.324

0.244

0.203

0.161

0.136

Scope 1+2 sales intensity(t-CO2e/million yen)

6,369 ☑

*1 Scopes 1 + 2 sales intensity: Total value of Scopes 1 and 2 divided by consolidated sales.
*2 Scope 2 (location-based): Value calculated using country-specific CO2 emissions factors. Calculations started from FY2023.
*3 A third-party assurance has been obtained from KPMG AZSA Sustainability Co., Ltd. for data indicated with a ☑

4Environmental Activities
１．Installation of solar power generation systems
Starting with the Head Office / R&D Center, a number of DISCO affiliate offices and plants haveintroduced solar power generation systems to reduce the environmental load caused by business
operations. In FY2023, Kuwabata Plant and one of our overseas affiliate offices (China) newly
introduced solar power generation systems as part of their operations. Currently, the power generation
capacity (solar panel capacity) has reached 3,649 kW, and the generated electricity is being used aselectricity for business operations.
Solar power system capacity at each siteSite

Power generation capacity

Head Office /R＆D Center
Kuwabata Plant

39kW1,770kW

Kure Plant

505kW

Chino Plant

1,179kWDISCO HI-TEC (SINGAPORE) PTE. LTD.

76kW

DISCO HI-TEC EUROPE GmbH39kW

DISCO HI-TEC CHINA CO., LTD.

41kW

Solar power generation system at Kuwabata Plant

Performance of the solar power generation systems*1 Electricity generated shows the total value of the annual electricity generated (excluding electricity sold) by thesolar power generation systems at all sites.
*2 CO2 reduction amount equals the amount of electricity generated, converted to CO2 equivalents (using electricity
supplier-specific emissions factors).

5Aggregate range and calculation methods
Boundary

Calculation period

From FY2023, DISCO Corporation and all its consolidated subsidiaries have been included as being applicable forApr. 1, 2023 - Mar. 31, 2024 calculations.
(However, this excludes consolidated subsidiaries that had an exceedingly small amount of greenhouse gas emissions)
Calculation method

Index

Energy consumption due to the burning of fuels or use of electricity
・Calculation targets are electricity, natural gas, city gas, LPG, gasoline, kerosene, diesel.
Energy consumption

・The energy consumption due to the use of each type of fuel or electricity was calculated based on Japan's "Act on
Rationalizing Energy Use and Shifting to Non-fossil Energy" (Energy Conservation Act) for both domestic and overseasoffices.
Direct greenhouse gas emissions due to the burning of fuels or use of greenhouse gases.
・The greenhouse gas emissions (Scope 1) were calculated based on Japan's "Act on Promotion of Global Warming

Greenhouse gas emissions
Scope 1Countermeasures" (Global Warming Countermeasures Act) for both domestic and overseas offices.
・Aggregate target greenhouse gases are CO2, CH4, N2O, HFCs, PFCs, and SF6. In addition, fuels that are included as
being applicable for the calculation of energy-derived CO2 are natural gas, city gas, LPG, gasoline, kerosene, anddiesel.
・The values used in the calculation of energy consumption were used for fuel consumption.
Indirect greenhouse gas emissions due to the use of electricity provided by other companies.
・The greenhouse gas emissions (Scope 2) were calculated based on Japan's "Act on Promotion of Global WarmingCountermeasures" (Global Warming Countermeasures Act) for both domestic and overseas offices.
・Regarding the CO2 emissions due to the use of electricity, the market-based and location-based CO2 emissions werecalculated using the below mentioned CO2 emissions factors respectively.
1. Market-based

Greenhouse gas emissions
Scope 2Domestic: Adjusted emissions factors from the electricity supplier-specific emissions factor list for FY2023, based on
the Global Warming Countermeasures Act, are used. In addition, if a contract was concluded based on an energysaving option, the emissions factors based on the contract are used.
Overseas: Emissions factors based on the contracted electricity option were used. If this emissions factor cannot beobtained, the average Grid Emission Factor (GEF) of the country or region announced by each country, or the countryspecific "Emissions Factors" issued by the IEA (International Energy Agency) in 2023, are used.
2. Location-based
The country-specific "Emissions Factors" issued by the IEA (International Energy Agency) in 2023 are used for both
domestic and overseas calculations.
Indirect greenhouse gas emissions outside Scopes 1 and 2.
・Greenhouse gas emissions are calculated with reference to the "Basic Guidelines on Accounting for Greenhouse Gas

Greenhouse gas emissions
Scope 3Emissions Throughout the Supply Chain (Ver. 2.6)" (Japanese Ministry of the Environment, Ministry of Economy, Tradeand Industry).
・Emissions factors used are from the "Emission Factor Database for Calculating Greenhouse Gas Emissions ofOrganizations through the Supply Chain (Ver. 3.4)" (Japanese Ministry of the Environment, Ministry of Economy, Tradeand Industry) and the ”LCI database IDEAv2 (for calculating supply chain greenhouse gas emissions)”(Sustainable
Management Promotion Organization).

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