Yinson Integrated Annual Report 2025

86 YINSON HOLDINGS BERHAD SUSTAINABILITY REVIEW processes outlined in our Yinson Management System (”YMS“). Our environmental performance dashboards offer updated and aggregated visualisations of environmental data. We have maintained a record of zero non-compliances to environmental laws and regulations for the year in review. Water and effluents Yinson Production’s operations do not rely heavily on shared water resources with local communities, thus they do not induce any water strain on potable groundwater or any other freshwater source. Additionally, we generate most of the freshwater needed for our own consumption. Our FPSO operations discharges produced water, slop water and seawater into the environment. During oil & gas production, a significant amount of liquid discharge and produced water is generated. Following extraction, the produced water undergoes separation and treatment in accordance with regulatory requirements before being discharged into surface water. The quality of produced water is assessed based on its oil content. Management of water discharge-related impacts The World Bank Group has established a global minimum standard for produced water discharge at less than 30 ppm, while MARPOL requires that slop water discharge remains below 15 ppm. We strictly adhere to these regulatory requirements and industry guidelines for all water discharges and enforce stringent pollution controls across all sea discharges. Specifically, on Yinson-operated FPSOs, water discharge is permitted only when oil concentrations are below 15 ppm in slop water and below 30 ppm in produced water. In addition, we aspire to a stricter internal target of maintaining oil content at 15 ppm or lower for all water discharges. Enhancing corporate sustainability through recycled and upcycled gifts Waste diverted to landfills negatively impacts the environment through soil and groundwater contamination, causing habitat destruction and adverse effects on local communities. To help reduce landfill waste, we have been sourcing corporate gifts made from recycled materials since 2021. In 2023, we expanded our efforts by upcycling Yinson Production coveralls and corporate polo shirts into unique gifts, demonstrating our commitment to integrating sustainability considerations into our business practices. In FY2025, the fleet average for oil in water concentration on Yinson-operated FPSOs was 3.6 ppm in slop water, while we marginally missed our internal target for produced water with oil in water concentration of 15.7 ppm. The foundation of our engineering solutions is formed by a combination of international and local regulations and industry best practices. We rigorously comply with regulations and procedures including: • MARPOL: limits discharges of potentially polluting substances into the waters where we operate and includes regulations to prevent pollution caused by oil, noxious liquid substances, sewage, garbage and air pollution. • The International Convention for the Control and Management of Ships’ Ballast Water and Sediments: aims to mitigate the adverse impacts of discharging ballast water in sensitive areas by preventing the release of foreign organisms into marine ecosystems. We regularly communicate with our stakeholders regarding any discharges of harmful substances, ensuring compliance with MARPOL and the International Convention on Oil Pollution Preparedness, Response and Cooperation. Yinson has established operational procedures and emergency response protocols to minimise risks associated with releasing water into marine ecosystems. We maintain unit-specific Shipboard Marine Pollution Emergency Plans (SOPEP) for both our offshore production and marine assets, detailing protocols ensuring emergency preparedness in the event of harmful discharge incidents. In FY2025, our total volume of water (effluent) discharged was 6,410.4 ML. In addition, we have recorded a total of 160 L of unrecovered hydrocarbon spills to sea. Air emissions Non-GHG air emissions include nitrogen oxides (NOx), sulphur dioxide (SO2), carbon monoxide (CO), and non-methane volatile organic compounds (nmVOCs). These emissions are calculated based on activity data and conversion factors recommended by the UK Oil & Gas ‘EEMS– Atmospheric Emissions Calculations (Issue 1.810a)’. In strict compliance with regulatory standards, we diligently monitor and evaluate air emissions aboard our FPSOs to mitigate our carbon footprint. In line with our commitment to reducing air emissions, we prioritise the adoption of low-emission technologies, whenever feasible, onboard our assets. In relation to these approaches, we are looking into decarbonisation solutions which relate to direct air capture and carbon removal, as well as other opportunities within the carbon value chain relating to transportation, infrastructure and storage. Exploring synergistic opportunities in low carbon ventures, pg 28. This year, we have recorded our Scope 1,2 and 3 emissions at 40,663.1 tCO2e, 346.0 tCO2e and 2,236,371.2 tCO2e respectively. Scan for more information on our environment management strategies.

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