对这份通知有什么疑问吗？拨打下面的免费电话或扫描二维码了解更多 免费电话-1-866 964-0492 www.computershare.com/ noticeandaccess Notice代理材料的可用性 TransAlta公司年度股东大会 会议日期和地点： 时间：4月25日，2024其中：仅虚拟会议格式通过现场音频 折叠 上午11：00(山区时间)https://web.lumiagm.com/471294222网络直播，您将收到此通知，通知您上述股东大会的代理材料可在互联网上获得 。本通讯仅概述了您可以在互联网上获得的更完整的代理材料。我们提醒您在投票前查阅管理代理通函和其他代理材料中包含的所有重要信息。 管理代理通函和其他相关材料可在以下网址获得： www.envisionreports.com/ZTMQ2024或 www.sedarplus.ca 如何获得代理材料的纸质副本 股东可以要求通过邮寄免费接收当前会议材料的纸质副本。索取纸质副本的请求 可使用随附的投票指导表或 代理上显示的控制编号进行。为确保您在投票截止日期和会议日期之前收到材料，所有申请必须在2024年4月5日之前收到。如果您确实要求提供当前的材料，请注意，将不会发送另一份投票指示表格/代理；请保留您当前的号码用于投票。 折叠 对于控制号码为15位的持有人： 通过拨打免费电话(北美境内)-1-866-962-0498或直接从北美以外的 北美-(514)982-8716请求材料，并输入您在投票指示 表格或代理上显示的 控制号码。 若要在会议日期后获取材料的纸质副本，请执行以下操作：对于拥有16位控制号码的持有者： 如需索取材料，请拨打北美境内的免费电话，或直接从北美以外的地区拨打电话请求材料。 要在会议结束后获取材料的纸质副本，请联系01YS0C CPUQC01.E.INT/000001/i123424-5672-7 c1.1 P191

Shareholder Meeting Notice The resolutions to be voted on at the meeting are listed below along with the sections within the Management Proxy Circular where disclosure regarding the matter can be found. 1. Election of Directors - Electing twelve (12) directors of the Company at the Meeting (information respecting the election of directors may be found in the Management Proxy Circular under “Business of the Meeting — Election of Directors”). 2. Appointment of Auditors - The reappointment of Ernst & Young LLP, as the auditors of the Company (information respecting the reappointment of auditors may be found in the Management Proxy Circular under “Business of the Meeting — Reappointment of Auditors”). 3. Say-on-Pay - Accepting the Company’s approach to executive compensation (information respecting executive compensation may be found in the Management Proxy Circular under “Business of the Meeting — Advisory Vote on Executive Compensation”). Fold Voting PLEASE NOTE - YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must vote using the methods reflected on your enclosed Voting Instruction Form or proxy. Your Voting Instruction Form or proxy must be received by 11:00 am (Mountain Time) on April 23, 2024. PLEASE VIEW THE MANAGEMENT PROXY CIRCULAR PRIOR TO VOTING Annual delivery of financial statements • Only Registered and Beneficial holders who opted to receive financial statements will be sent paper copies. Fold 01YS1B 24-5672-7 C1.1 P192