Mr. Jon Morrison reports

ALTAGAS ANNOUNCES INTENTION TO REDEEM ALL OUTSTANDING SERIES E PREFERRED SHARES

AltaGas Ltd. intends to redeem, in accordance with the terms of the cumulative redeemable five-year rate reset preferred shares, Series E, as set out in the company's articles, all of its eight million issued and outstanding Series E shares on Dec. 31, 2023, for a redemption price equal to $25.00 per Series E share, together with all accrued and unpaid dividends to, but excluding, the redemption date, less any tax required to be deducted or withheld by the company.

As outlined in the November 10, 2023 press release, AltaGas intends to use the net proceeds from the $200 million of 8.90% Fixed-to-Fixed Rate Subordinated Notes, Series 3 due November 10, 2083 to redeem or repurchase its outstanding Series E Shares.

The Company has provided notice today of the Redemption Price and the Redemption Date to the sole registered holder of the Series E Shares in accordance with the terms of the Series E Shares as set out in the Company's articles. Non-registered holders of Series E Shares should contact their broker or other intermediary for information regarding the redemption process for the Series E Shares in which they hold a beneficial interest. The Company's transfer agent for the Series E Shares is Computershare Investor Services Inc. Questions regarding the redemption process may be directed to Computershare Investor Services Inc. at 1-800-564-6253 or by email to corporateactions@computershare.com.

ABOUT ALTAGAS

AltaGas is a leading North American infrastructure company that connects customers and markets to affordable and reliable sources of energy. The Company operates a diversified, lower-risk, high-growth Utilities and Midstream business that is focused on delivering resilient and durable value for its stakeholders.

We seek Safe Harbor.