Company: TSLTF
Filing Date: 2025-12-09
Form Type: F-10EF
Source: 0001193125-25-312047
Chunk: 18

Company: TRANSALTA CORP
Filing Date: 2025-12-09
Form: F-10EF
Chunk 18
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 applicable Prospectus Supplement. The Prospectus Supplement will describe some or all of the following terms relating to the Warrants being offered:

| • |     | the designation of the Warrants; |

| • |     | the aggregate number of Warrants offered and the offering price, if any; |

| • |     | the designation, number and terms of the Common Shares, First Preferred Shares or other Securities purchasable 
 upon exercise of the Warrants, and procedures that will result in the adjustment of those numbers;             |

| • |     | the exercise price of the Warrants; |

| • |     | the dates or periods on, after or during which the Warrants are exercisable; |

| • |     | the designation and terms of any Securities with which the Warrants are issued and the number of Warrants that 
 will be issued with each such Security;                                                                        |

| • |     | if the Warrants are issued as a unit with another Security, the date on and after which the Warrants and the 
 other Security will be separately transferable;                                                              |

| • |     | the currency or currency unit in which the offering price, if any, and exercise price are denominated; |

| • |     | any minimum or maximum amount of Warrants that may be exercised at any one time; |

| • |     | whether such Warrants will be listed on any securities exchange; |

| • |     | provisions as to modification, amendment or variation of the warrant agreement or indenture or any rights or 
 terms attaching to the Warrants;                                                                             |

| • |     | any terms, procedures and limitations relating to the transferability, exchange or exercise of the Warrants; |

| • |     | whether the Warrants will be subject to redemption or call and, if so, the terms of such redemption or call 
 provisions; and                                                                                             |

| • |     | any other terms of the Warrants. |

- 12 -

DESCRIPTION OF SUBSCRIPTION RECEIPTS The Corporation may issue Subscription Receipts, independently or together with other Securities, and Subscription Receipts sold with other Securities may be attached to or separate from the other Securities. Subscription Receipts will be issued under one or more subscription receipt agreements that we will enter into with one or more escrow agents. If underwriters or agents are involved in the sale of Subscription Receipts, one or more of such underwriters or agents may also be parties to the subscription receipt agreement governing those Subscription Receipts. The relevant subscription receipt