SUSTAINABILITY STATEMENT Sec 3 73 In 2021, TNB committed to no longer investing in greenfield coal plants. We are exploring the viability of retiring coal-fired power plants earlier than planned, subject to shareholders’ agreement and approvals from the relevant authorities and regulators. The GHG Scope 1 emissions of our coal power plants is expected to reduce as these plants retire according to the respective Power Purchase Agreements (PPAs), as follows: Our partnerships with Mitsui & Co. and Chugoku are making substantial strides in advancing the feasibility study for co-firing coal with biomass and ammonia at the Jimah East Power Plant. Following the successful completion of the feasibility study at Phase 1, we started Phase 2, with an in-depth analysis of technical behaviours through a small-scale project of actual co-firingwith varying concentrations of ammonia and biomass. This phase involved conducting a Front-End Engineering Design (FEED) study for this small-scale co-firing project. A significant milestone was achieved with the successful execution of the EFB-Pellet Trial Burn for Unit 2 (1,000MW) in September 2023. Notably, this marked the first Biomass Mix-Firing test for a Supercritical type of boiler in Malaysia. The trial run demonstrated positive outcomes, showcasing observable reductions in emissions. Moving forward, further studies and actual tests will be conducted to assess the technical behaviour under increased concentrations, e.g. 3% to 5% of biomass and ammonia. This ongoing exploration is integral to refining and optimising our co-firing strategies for enhanced sustainability. Reducing Carbon Emissions We continue to accelerate the transition from a fossil-fuel-based energy mix to low-carbon energy sources such as hydrogen. Through strategic collaboration with IHI Corporation, we are working together to reduce carbon emissions in identified TNB coal-fired power plants. Our goal is to explore the practicality of using hydrogen in co-firing and conducting tests with different hydrogen