Company: TSLTF
Filing Date: 2025-02-20
Form Type: 40-F
Source: 0001144800-25-000006
Chunk: 10

Company: TRANSALTA CORP
Filing Date: 2025-02-20
Form: 40-F
Chunk 10
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of and we do not undertake to publicly update these forward-looking statements to reflect new information, future events or otherwise, except as required by applicable laws. The purpose of the financial outlooks contained herein (including as may be incorporated by reference) is to give the reader information about management's current expectations and plans and readers are cautioned that such information may not be appropriate for other purposes.

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### UNDERTAKING
TransAlta undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the Commission staff, information relating to: the securities in relation to which the obligation to file an annual report on Form 40-F arises or transactions in said securities.

### CONSENT TO SERVICES OF PROCESS
TransAlta has previously filed a Form F-X in connection with the class of securities in relation to which the obligation to file this report arises and is filing contemporaneously herewith an amendment to the Form F-X to report a change in the agent for service of process. Any change to the name or address of the agent for service of process of TransAlta shall be communicated promptly to the Commission by an amendment to the Form F-X referencing the file number of TransAlta.

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EXHIBIT INDEX</div>

| 97   
 99.1 
 99.2 |     | Executive Compensation Clawback Policy                                                                                       
 TransAlta Corporation Annual Information Form for the year ended Dec. 31, 2024                                               
 Management's Discussion and Analysis for the year ended Dec. 31, 2024                                                        |
|:-----|:----|:-----------------------------------------------------------------------------------------------------------------------------|
| 99.3 |     | Consolidated Audited Annual Financial Statements for the year ended Dec. 31, 2024                                            |
| 99.4 |     | Management’s Annual Report on Internal Control over Financial Reporting (included on page F2 of Exhibit 99.3 filed herewith) |
| 99.5 |     | Consent of Independent Registered Public Accounting Firm                                                                     |
| 99.6 |     | Certification of President and Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002             |
| 99.7 |     | Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                           |
| 99.8 |