AltaGas Value Proposition

1 Low-to-No- Capital-Intensive Projects Projects with <$25MM Capital Spend 보리얼 파이어니어 BOREAL PIONEER Townsend: Whitespace Optimization Treaty 8 resolution provides visible path to optimization and increasing facility throughput. ■ Asset is highly contracted. with long-term take-or-pay contracts; active discussions around filling the non- contracted space. Long-term CN Agreement ■ New five-year CN Rail agreement provides cost and service predictability. Covers current RIPET exports and will also include REEF volumes, should the project be sanctioned. Maritime Time Charters ■ Extend value chain into Asia, reduces shipping costs by ~25% over long-term basis, and remove pricing volatility. ■ Three Time Charters operating in 2024 with a fourth under construction, which is set to be commissioned in H1/26. RIPET: Methanol Reduction Removing methanol from propane supply at RIPET expands downstream demand markets in Asia. Project Legend: Notes: *See "Forward-looking Information" AltaGas Sanctioned Advanced, Not Currently Sanctioned Under Evaluation 51

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