OUR PERFORMANCE SUSTAINABILITY DISCLOSURES ON MATERIAL MATTERS Sustaining PowerPlant Efficiency Managing GHG Emissions from Substations Improving Energy Efficiency in Our TNB Office Buildings Energy Efficiency through Greater Customer Empowerment Enhance Operational Efficiency Across the Value Chain We aim to lower our sulphur hexafluoride (SF6) fugitive emissions from our substations through recycling at our SF6 Gas Recycling and Reconditioning Centre and reusing the gas in these assets to promote a circular economy. In 2023, a campaign called “Drip by Drip, Watt by Watt” was launched by the TNB Global Business Solutions (TGBS) Division with the aim of promoting energy efficiency by reducing electricity and water consumption and involving 109 TNB-owned offices. Since the campaign’s start in July 2023, the usage of electricity and water has been captured and monitored monthly.As at 31 December 2023, our total electricity consumption reduction was 870,063kWh, which translated to a GHG Scope 2 emissions reduction estimated at 659 tCO2e. TENAGA NASIONAL BERHAD Integrated Annual Report 2023 76 In 2023, we assessed our Scope 3 indirect emissions under Categories 6 (Business Travel) and 7 (Employee Commuting), focusing on our operations in Peninsular Malaysia. Leveraging current data availability and the capacity of TNB’s internal monitoring systems, we employed a distance-travelled-based methodology for reporting GHG Scope 3 emissions in Categories 6 (Business Travel) and 7 (Employee Commuting). This approach was aligned with the GHG Protocol Scope 3 Calculation Guidance (2013). No Metric Bursa Ind. Unit 2021 2022 2023 Targets Energy Consumption 1 T otal energy consumption* C4 (a) GJ 840,944 MWh 863,463 MWh 442,044,404 Started in FY2023 as baseline Energyconsumptionintensity-GJ/MWh--6.72Energyintensitymaintained at<6 GHG Emissions 2 Scope 1 GHG Emissions C11 (a) mil tCO2e 39.77 38.58 38.92 38.62 mil tCO2e - 1% reduction from base year 2020 3 Scope 2 GHG Emissions C11 (b) mil tCO2e 0.28 0.32 0.39 0.218 mil tCO2e - 1%