Taiheiyo Cement by Numbers — Data Section

GCCA Key Performance Indicators

GCCA Independent Assurance Report

The Taiheiyo Cement Group's key performance indicators (KPIs) for FY2023 have been subjected to independent limited
assurance by KPMG AZSA Sustainability Co., Ltd.

FY2023 Key Performance Indicators (KPI)*¹ *²
CO2 and climate protection (CO2 emissions and energy consumption)

Number of facilities using the GCCA “The Cement CO2 and Energy Protocol” guidelines for emissions inventory
Ratio of facilities using the GCCA “The Cement CO2 and Energy Protocol” guidelines for emissions inventory (%)
Scope 1 emissions*4
Total CO2 emissions (thousand t)
Gross emissions*5
Net emissions*6
Specific gross emissions
CO2 emissions per tonne of cementitious product*7 (kg-CO2/t-cementitious)
Specific net emissions
Emissions from electricity purchased (thousand t) (Scope 2 emissions)Indirect emissions other than Scope 1 and 2 (emissions of other companies related to the activities of the calculation entity)(thousand t) (Scope 3 emissions)*8
Category 1 (Purchased goods and services)*9
Category 3 (fuel- and energy-related activities not included in Scope 1 and 2)*11
Specific heat consumption for clinker production (MJ/t-clinker)
Alternative fuel rate: ratio of alternative fuels used by kilns (%)
Biomass fuel rate: ratio of biomass fuel used by kilns (%)
Clinker/cement (equivalent) factor: ratio of the total clinker consumption and cement produced, calculated according to theGCCA Cement CO2 and Energy Protocol guidelines

Emissions monitoring and reporting

Percentage of clinker produced by kilns covered by a monitoring system, either continuous or discontinuous, for the main and other pollutants (%)
NOx*12Percentage of clinker produced by kilns which have adopted continuous measurement forSOx*12the main pollutants (%)
Dust
NOx
Total emissions (t)
SOx
Dust
NOx
Specific emissions (g/t-clinker)
SOx
Dust

Water
Withdrawal (thousand m³)
Discharge (thousand m³)

Fresh water
SeawaterFresh water
Seawater

Health and Safety

Fatalities

Number of fatalities for directly employed personnel
Fatality rate per 10,000 directly employed personnel
Number of fatalities for indirectly employed personnel (contractors and subcontractors)
Number of fatalities involving third parties (not employed)
Lost-time injuries
Number of lost-time injuries for directly employed personnel
Injury frequency rate of directly employed personnel (per million working hours)
Number of lost-time injuries for indirectly employed personnel (contractors and subcontractors)

To the President and Representative Director of Taiheiyo Cement Corporation

FY202117100
24,02922,672
21,832
701
675
855

FY202217100
23,67922,525
21,629703
675
983

FY202316*3
100
20,06519,017
17,997
698
661
868

We were engaged by Taiheiyo Cement Corporation (the “Company”) to undertake a limited assurance engagement of theenvironmental and social performance indicators (the “Indicators”) included under the following headings in the GCCA KeyPerformance Indicators section of its Taiheiyo Cement Report 2023 (the “Report”) for the fiscal year ended March 31, 2023.
• CO2 and climate protection (CO2 emissions, energy consumption) ¹• Emissions monitoring and reporting ¹• Water ¹• Health and safety ²

1,769

1,639

1,766

752
1,017
3,321
12.2
2.0

635
1,004
3,291
13.3
2.0

893*10873
3,375
17.6
2.3

The Company’s Responsibility

82.4

83.0

83.0

FY2021
100
97.7
96.4
100
34,758
1,139
544
1,282
4220

FY2022
100
97.6
96.2
100
34,330*12
1,091*12
439*12
1,277*12
41*12
16*12

FY2023
100
97.5
95.7
100
32,425
930
423
1,434
41
19

FY2021
27,192
146,232
13,447
146,368

FY2022
26,341
146,894
13,246
147,062

FY202324,649145,476
12,792
145,639

FY2021

FY2022

FY202300000000001015
1.27
1815
1.33
1923
2.13
12*1 CO2 and climate protection, emissions monitoring and reporting, and water for FY2023 are in accordance with “GCCA Sustainability Guidelines for the monitoring and reporting of CO2 emissions
from cement manufacturing Ver. 0.1”, “GCCA Sustainability Guidelines for the monitoring and reporting of emissions from cement manufacturing Ver. 0.1”, “GCCA Sustainability Guidelines forco-processing fuels and raw materials in cement manufacturing Ver. 0.1” and “GCCA Sustainability Guidelines for the monitoring and reporting of water in cement manufacturing Ver. 0.1”.
*2 Health and safety for FY2023 is in accordance with “GCCA Sustainability Guidelines for the monitoring and reporting of safety in cement manufacturing Ver. 1.0”. We have aggregated datafrom the cement businesses of Taiheiyo Cement and 15 domestic and overseas group companies, and from the construction materials, aggregates and ready-mixed concrete businesses of 46
companies out of the affiliated companies that are considered to be business sites required to submit accident reports under our health and safety management regulations.
*3 Plants that ceased operations during the period are excluded from the current period's totals in accordance with GCCA guidelines.
*4 CO2 emissions that are not included in the items for disclosure mandated by the GCCA but are derived from raw materials and fuels in the cement manufacturing process (including from on-sitepower generation) and fall under Scope 1.
*5 CO2 emissions derived from raw materials and fuels in the cement manufacturing process (excluding CO2 emissions generated from on-site power generation).
*6 CO2 emissions derived from raw materials and fuels in the cement manufacturing process (excluding CO2 emissions generated from alternative fuels and on-site power generation).
*7 Cementitious product: Sum total of clinker and admixtures*8 For Scope 3, we refer to the “Emissions Unit Values for Accounting of Greenhouse Gas Emissions, etc., by Organizations Throughout the Supply Chain (Ver. 3.2)”, Ministry of the Environment and“For Calculating Supply Chain Greenhouse Gas Emissions (FY2021: IDEAv2, FY2022 onward: IDEAv3.2)”.
*9 Calculated by multiplying the input volume (physical data) of raw materials purchased by the business site subject to the data collection of environmental performance in the GCCA KPI (hereinafterreferred to as “business site”) from outside the business site by the emission intensity of each raw material.
*10 Emissions increased due to the switch from in-house production of clinker to external purchasing due to the expansion construction at Taiheiyo Cement Philippines, Inc.
*11 Calculated by multiplying the amount of electricity, fuel, etc. procured by the business site by each specific emissions unit.
*12 Calculations were reviewed and revised retroactively.

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Independent Assurance Report

1 Periodic accounting is based on the fiscal year 2022 for domestic plants and the calendar year 2022 for overseas plants.
2 Periodic accounting is based on the calendar year 2022 for domestic and overseas plants.

The Company is responsible for the preparation of the Indicators in accordance with its own reporting criteria (the “Company’sreporting criteria”), as described in the Report.

Our Responsibility

Our responsibility is to express a limited assurance conclusion on the Indicators based on the procedures we have performed. We
conducted our engagement in accordance with the ‘International Standard on Assurance Engagements (ISAE) 3000, Assurance
Engagements other than Audits or Reviews of Historical Financial Information’ and the ‘ISAE 3410, Assurance Engagementson Greenhouse Gas Statements’ issued by the International Auditing and Assurance Standards Board. The limited assurance
engagement consisted of making inquiries, primarily of persons responsible for the preparation of information presented in theReport, and applying analytical and other procedures, and the procedures performed vary in nature from, and are less in extent
than for, a reasonable assurance engagement. The level of assurance provided is thus not as high as that provided by a reasonableassurance engagement. Our assurance procedures included:• Interviewing the Company’s responsible personnel to obtain an understanding of its policy for preparing the Report and reviewing
the Company’s reporting criteria.
• Inquiring about the design of the systems and methods used to collect and process the Indicators.
• Performing analytical procedures on the Indicators.
• Examining, on a test basis, evidence supporting the generation, aggregation and reporting of the Indicators in conformity with theCompany’s reporting criteria, and recalculating the Indicators.
• Visiting the following four plants out of a total of 16 plants of the Taiheiyo Cement Group, selected on the basis of a risk analysis.
(Scopes 1 and 2 CO2 emissions covered by these four plants correspond to 40% * of the combined total of the Group’s Scopes 1and 2 CO2 emissions.)* Based on the amount of absolute gross CO2 for the fiscal year 2022 for domestic plants and the calendar year 2022 for overseas plants.

Overseas plants- Nghi Son Cement Corporation

Domestic plants- Taiheiyo Cement Corporation: Oita Plant- Myojyo Cement Co., Ltd.
- DC Co., Ltd.

• Evaluating the overall presentation of the Indicators.

Conclusion

Based on the procedures performed, as described above, nothing has come to our attention that causes us to believe that theIndicators in the Report are not prepared, in all material respects, in accordance with the Company’s reporting criteria as described inthe Report.

Our Independence and Quality Management

We have complied with the Code of Ethics for Professional Accountants issued by the International Ethics Standards Board for
Accountants, which includes independence and other requirements founded on fundamental principles of integrity, objectivity,
professional competence and due care, confidentiality and professional behavior. In accordance with International Standard onQuality Management 1, we design, implement and operate a system of quality management including policies or procedures
regarding compliance with ethical requirements, professional standards and applicable legal and regulatory requirements.
/s/ Kazuhiko Saito
Kazuhiko Saito, Partner, Representative Director
KPMG AZSA Sustainability Co., Ltd.
Tokyo, Japan
November 29, 2023
Notes to the Reader of Independent Assurance Report:
This is a copy of the Independent Assurance Report and the original copies are kept separately by the Company and KPMG AZSA Sustainability Co., Ltd.

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