BREADCRUMB Home Invest Share Information 2021 Annual Meeting of Shareholders 2021 ANNUAL MEETING OF SHAREHOLDERS MEETING DETAILS Date: April 30, 2021 Time: 1:00 p.m. (MDT) Location: Virtual Meeting (online) You can attend the live audio webcast Meeting by clicking on https://web.lumiagm.com/481690299 up to an hour before the time of the Meeting. You will need the latest version of Chrome, Safari, Edge or Firefox. To ask questions and vote at the meeting you must be a registered shareholder or duly appointed proxyholder. If you are a registered shareholder, your username is the 15-digit control number printed on your proxy form. If you are a non-registered (beneficial) shareholder and have followed the steps to duly appoint a proxyholder (including yourself), the proxyholder will have received a username from Computershare to be used in Step 3. Step 1: Go to https://web.lumiagm.com/481690299 Step 2: Click on “Login”. Step 3: Enter your 15-digit Control Number or the username provided by Computershare Step 4: Enter your password - AltaGas2021 (case-sensitive) For additional details, including how to appoint and register a proxyholder (including yourself), please refer to the instructions under "How do I vote my Shares?" in the management information circular dated March 11, 2021 (the "Circular") and the "Virtual AGM User Guide" (below). We recommend that you log in to the site at least 15 minutes before the time of the Meeting. Your Vote is Important! Please submit your vote well in advance of the proxy deposit deadline specified in your form of proxy or voting instruction form, or ensure you are properly registered to attend and vote at the meeting. 2021 NOTICE & ACCESS AltaGas is using notice and access for sending the annual meeting materials to shareholders, which allows us to deliver the Notice of Meeting, the Circular and the consolidated financial statements for the year ended 2020, along with management’s discussion and analysis thereon ("MD&A") (the “Meeting Materials”) to shareholders by posting them, instead of mailing these documents. Notice and access is a more environmentally friendly and cost-effective way to deliver the Meeting Materials, as it will help reduce paper use and the cost of printing and mailing materials to shareholders. You can access the Meeting Materials by clicking the links below. Shareholders who would like a paper copy of the Meeting Materials can request copies by following the instructions on the Notice of Annual Meeting and Notice of Availability of Meeting Materials. MEETING MATERIALS Notice of Annual Meeting and Notice of Availability of Meeting Materials (Registered Holders) Notice of Annual Meeting and Notice of Availability of Meeting Materials (Beneficial Holders) Management Information Circular (including Notice of Meeting) Form of Proxy Virtual AGM User Guide 2020 Financial Statements and MD&A MORE INFORMATION Refer to FAQs for responses to common questions about our virtual meeting. Key governance documents are available including Board of Director policies and mandates. BOARD OF DIRECTORS Get to know the Board of Directors by reading their bios. MAIN NAVIGATION FOR SIDEBAR Events & Presentations Why Invest Financials Share Information DRIP DRIP Summary Preferred Shares Dividends Analyst Coverage Tax Information FAQs 2021 Annual Meeting of Shareholders Investor Contact ALA 25.54 0.85 Open: 24.67 High: 25.6 Low: 24.67 52 Week High: 26.94 Low: 18.05 FOOTER MENU Vendors Contact Legal Sitemap 24 Hour Toll-free Emergency Number: 1.866.826.3830 Pipeline Damage Prevention: Call Before You Dig. 2021 AltaGas Ltd. All Rights Reserved