Investor Presentaiton

Creating Value Case study: Gas transportation to enhance system capacity, reliability and security of supply for Australia's energy system $8bn¹ 宮 Customer Drivers Market opportunity for gas pipelines Why APA expects to be the partner of choice in gas transportation >15,000km APA's existing transmission pipeline network across Australia 宮 Increased need for gas transportation from northern producers to southern markets Ongoing need for gas to support Australia's manufacturing industry Accelerating build out of renewables and exit of coal placing high demand on gas firming Ability for gas transmission pipelines to act as storage facilities ° Well positioned with an extensive pipeline network, a track record of developing linear infrastructure, and established landholder relationships Demonstrated appetite to invest ahead of anticipated demand to meet future customer needs Trusted and competent operator with field support crews spread nationally Existing relationships with energy supply, wholesale, large commercial and industrial customers Case study East Coast Grid Expansion Stage One has increased Wallumbilla to southern markets capacity by 12%, helping to mitigate the forecast 2023 southern state winter supply risk identified in the 2022 AEMO GSOO Stage Two will add a further 13% of capacity APA's decision to begin Stage 2 expansion is driven by strong confidence in Stage 1 contracting and continuing customer demand for transportation capacity APA FY23 Results Investor Presentation 1. Estimated addressable market size in Australia. Estimate is based on a number of key assumptions, including in relation to macroeconomic factors, future technology advancements and costs, market demand, regulatory requirements and government policies and there can be no assurance the estimate is accurate. The actual addressable market size may differ materially from the estimate because events frequently do not occur as projected. apa 23 23

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