AltaGas Value Proposition

2024 Financial Guidance Highlights 6% Annual Dividend Increase $2.05-2.25 Anticipated Normalized EPS1 10% Y/Y Growth (2023 Midpoint to 2024 Midpoint) $1.675 -1.775B Anticipated Normalized EBITDA¹ 11% Y/Y Growth (2023 Midpoint to 2024 Midpoint) ~$1.2B Planned Capital Program AltaGas is focused on building a low-risk energy infrastructure platform that delivers resilient and durable value for our stakeholders that compounds over time. Notes: 1) Non-GAAP financial measure, see discussion in the advisories *See "Forward-looking information" 59

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