Company: TSLTF
Filing Date: 2025-12-12
Form Type: SUPPL
Source: 0001193125-25-317786
Chunk: 435

Company: TRANSALTA CORP
Filing Date: 2025-12-12
Form: SUPPL
Chunk 435
---
, and the extent to which the general terms and provisions described in this section apply to those Subscription Receipts, will be set out in the applicable Prospectus Supplement. The Prospectus Supplement will describe some or all of the following terms relating to the Subscription Receipts being offered:

| • |     | the designation of the Subscription Receipts; |

| • |     | the aggregate number of Subscription Receipts offered and the offering price; |

| • |     | the currency or currency unit in which the Subscription Receipts will be offered; |

| • |     | the terms, conditions and procedures for which the holders of Subscription Receipts will become entitled to 
 receive the underlying Securities;                                                                          |

| • |     | the number of Securities that may be obtained upon the conversion of each Subscription Receipt, any anti-dilution              
 provisions that will result in the adjustment of that number and the period or periods during which any conversion must occur; |

| • |     | the designation and terms of any other Securities with which the Subscription Receipts will be offered and the 
 number of Subscription Receipts that will be offered with each Security;                                       |

| • |     | the treatment of the gross proceeds from the sale of such Subscription Receipts, including (if applicable) the                                                                                                               
 terms applicable to the escrow agent holding in escrow all or a portion of the gross proceeds from the sale of such Subscription Receipts, plus any interest earned thereon, pending satisfaction of the release conditions; |

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

| • |     | procedures for the refund by the escrow agent to holders of Subscription Receipts of all or a portion of the                                                                          
 subscription price for their Subscription Receipts, plus any pro rata entitlement to interest earned or income generated on such amount, if the release conditions are not satisfied; |

| • |     | any entitlement of ours to purchase the Subscription Receipts in the open market, by private agreement or 
 otherwise;                                                                                                |

| • |     | whether we will issue the Subscription Receipts as global securities and, if so, the identity of the depository; |

| • |     | provisions as to modification, amendment or variation of the subscription receipt agreement or any rights or 
 terms attaching to the Subscription Receipts;                                                                |

| • |     | any terms, procedures and limitations relating to the transferability, exchange or conversion of the Subscription 
 Receipts; and                                                                                                     |

| • |     | any other