An anonymous director reports

ALTAGAS TO ISSUE FIRST QUARTER 2024 RESULTS AND HOLD ANNUAL MEETING OF SHAREHOLDERS

AltaGas Ltd. will release its first quarter 2024 results on Thursday, May 2, 2024, before market open. A conference call and webcast will be held the same day to discuss the financial results and other corporate developments.

Conference call and webcast details

Date:  Thursday, May 2, 2024

Time:  9 a.m. MT (11 a.m. ET)

A webcast will be available.

Dial-in (audio only):  1-416-764-8659 or toll-free at 1-888-664-6392

Shortly after the conclusion of the call, a replay will be available on the company's website or by dialling 1-416-764-8677 or toll-free 1-888-390-0541. The passcode is 598981 followed by the number sign.

Annual meeting of shareholders

AltaGas will also hold its annual general meeting of shareholders on the same day.

Date:  Thursday, May 2, 2024

Time:  1 p.m. MT (3 p.m. ET)

Virtual:  at the Lumi AGM website (passcode: altagas2024)

Registered shareholders and duly appointed proxyholders can vote at the virtual meeting or in advance of the meeting by proxy or voting instruction form. Voting in advance continues to be an option that the majority of its shareholders has chosen to use in the past. AltaGas encourages shareholders to continue to use the advance voting methods outlined in AltaGas's management information circular dated March 7, 2024, and to vote well in advance of the deadlines outlined in your form of proxy or voting instruction form.

Further information can be found on the company's website and in the management information circular.

Shareholders who have questions or have not received their form of proxy or voting instruction form should contact AltaGas's proxy solicitation agent.

Morrow Sodali Canada Ltd.

North American toll-free:  1-888-777-1639

Outside of North America collect:  1-289-695-3075

E-mail:  assistance@morrowsodali.com

About AltaGas Ltd.

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 energy infrastructure business that is focused on delivering stable and growing value for its stakeholders.

We seek Safe Harbor.