使用電話或互聯網投票！ 要通過電話或互聯網投票，您需要提供下面列出的控制號碼。 如果您通過電話或互聯網投票，請不要郵寄此代理。 郵寄投票可能是以公司名義持有的證券或代表另一個人投票的證券的唯一方法。 郵寄投票或通過互聯網投票是持有人可以指定除本代理背面指定的管理層提名人以外的其他人作為代理持有人的唯一方法。 不郵寄此代理，您可以從上述兩種投票方式中選擇一種來投票表決此代表。 GFL Environmental Inc. 委託書形式-將於2024年5月15日01Z8VA舉行的年度股東大會 此委託書是由管理層或代表管理層徵集的。 摺疊 控制編號 委託書 1.每個持有人都有權指定他們選擇的其他人或公司出席會議或其任何延期或延期，並代表他們行事。如閣下希望委任一名人士或公司，而非印刷於本表格內的管理層提名人，請在所提供的空白處填上您所選擇的委託持有人的姓名或名稱(見反面)。 2.如證券是以多於一名擁有人的名義登記的(例如，共同擁有權、受託人、遺囑執行人等)，則所有登記的人應簽署本委託書。如果您代表公司或其他個人投票，您可能需要提供證明您有權簽署本委託書的文件，並説明您的簽署能力。 3.本委託書的簽名方式應與委託書上的姓名(S)(S)完全相同。 4.如果未在本委託書背面的空白處填寫日期，則將被視為帶有管理層郵寄給持有人的日期。 5.本委託書所代表的證券將按照持有人的指示進行投票，如果未就任何事項作出此類指示，而委託書指定了背面所列的管理層被提名人，則該委託書將按照管理層的建議進行表決。 6.本委託書所代表的證券將根據持有人的指示在任何可能要求的投票中投贊成票、棄權票或反對票(視情況而定)。如果您已指定對要採取行動的任何事項進行選擇，則證券將相應地進行表決。 7.本委託書授予對會議通知和管理信息通告中確定的事項的修改或變更的自由裁量權，或對可能提交會議或其任何延期或延期的其他事項的自由裁量權，除非法律禁止。 8.本委託書應與管理層提供的隨附文件一起閲讀。 提交的委託書必須在東部時間5月13日上午10：00之前收到。如果年度股東大會延期或延期，提交的委託書必須不少於48小時收到，不包括星期六、星期日和法定節假日。在此延期或延期的會議開始前。 ·通過按鍵電話撥打下面列出的號碼。 ·轉到以下網站 網站：www.investorvote.com ·智能手機？ 掃描二維碼 立即投票。 ·您可以通過訪問 www.Investorcentre.com以電子方式註冊接收未來的證券持有人 通信。 ·您可以通過訪問本文檔背面提供的URL以虛擬方式參加會議。 8樓，安大略省多倫多大學大道100號投票使用電話投票使用互聯網接收文件電子 虛擬出席會議 Mr A Sample 指定(如果有) Add1 Add2 add3 add4 add5 add6 C1234567890 Ind 000001從屬投票 CPUQC01.E.INT/000001/i1234 123456789012345持有者賬號 安全級別 1-866-732-Vote(8683)

364425 01Z8WA Fold Fold AR1 Interim Financial Statements – Mark this box if you would like to receive Interim Financial Statements and accompanying Management’s Discussion and Analysis by mail. Annual Financial Statements – Mark this box if you would like to receive the Annual Financial Statements and accompanying Management’s Discussion and Analysis by mail. If you are not mailing back your proxy, you may register online to receive the above financial report(s) by mail at www.computershare.com/mailinglist. Signature of Proxyholder I/We authorize you to act in accordance with my/our instructions set out above. I/We hereby revoke any proxy previously given with respect to the Meeting. If no voting instructions are indicated above, and the proxy appoints the Management Nominees, this Proxy will be voted as recommended by Management. MM / DD / YY Signature(s) Date 01. Patrick Dovigi For Withhold 04. Arun Nayar 02. Dino Chiesa For Withhold 05. Paolo Notarnicola 03. Violet Konkle For Withhold 06. Ven Poole 2. Appointment of Auditor Appointment of KPMG LLP as Auditor of the Company until the next Annual General Meeting and authorizing the Directors to fix their remuneration. For Withhold 3. Consideration of Company Approach to Executive Compensation Approval of advisory non-binding resolution on the Company’s approach to executive compensation. For Against 07. Blake Sumler 10. Sandra Levy 08. Raymond Svider 09. Jessica McDonald 1. Election of Directors I/We being holder(s) of securities of GFL Environmental Inc. (the “Company”) hereby appoint: Patrick Dovigi, President and Chief Executive Officer, or failing this person, Luke Pelosi, Executive Vice President and Chief Financial Officer (the “Management Nominees”) Appointment of Proxyholder OR as my/our proxyholder with full power of substitution and to attend, act and to vote for and on behalf of the holder in accordance with the following direction (or if no directions have been given, as the proxyholder sees fit) and on all other matters that may properly come before the Annual General Meeting of shareholders of the Company to be held online at https://web.lumiagm.com/404558653, Password: gfl2024, on May 15, 2024 at 10:00 a.m., Eastern Time, and at any adjournment or postponement thereof. VOTING RECOMMENDATIONS ARE INDICATED BY HIGHLIGHTED TEXT OVER THE BOXES. Print the name of the person you are appointing if this person is someone other than the Management Nominees listed herein. Note: If completing the appointment box above YOU MUST go to http://www.computershare.com/GFL and provide Computershare with the name and email address of the person you are appointing. Computershare will use this information ONLY to provide the appointee with a user name to gain entry to the online meeting. C1234567890 XXX 123 MR SAM SAMPLE ZGFQ XXXX 999999999999