Company: TSLTF
Filing Date: 2025-12-12
Form Type: SUPPL
Source: 0001193125-25-317786
Chunk: 135

Company: TRANSALTA CORP
Filing Date: 2025-12-12
Form: SUPPL
Chunk 135
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 |           |     856 |
| Emissions (MWh)    |     |          |    167 |     |           |    370 |     |          |    212 |     |           |     804 |
| Emissions (tonnes) |     |          |  1,850 |     |           |    150 |     |          |  4,450 |     |           |   5,125 |
| Coal               
 (tonnes)           |     |          |      — |     |           |  1,728 |     |          |      — |     |           |   5,172 |

| F59 |     | TransAlta Corporation |     | 2024 Integrated Report |

Notes to the Consolidated Financial Statements

b. Interest Rate Risk Management Changes in interest rates can impact the Company’s borrowing costs and cost of capital. Changes in the cost of capital could affect the feasibility of new growth initiatives. Interest rate risk also arises as the fair value of future cash flows from a financial instrument fluctuates due to changes in market interest rates. The Company’s syndicated credit facility, Term Facility, Heartland Term Facility and the Poplar Creek non-recoursebond are subject to floating interest rates, which represent 23 per cent of the Company’s total long-term debt as at Dec. 31, 2024 (2023 — 14 per cent). Interest rate risk is managed with the use of derivatives. In 2024, the Company had interest rate swap agreements in place with a notional amount of $190 million, which are not designated as hedges, whereby the Company receives a variable rate of interest equal to the three-month CORRA rate plus a 0.321 per cent premium, and pays interest at a fixed rate equal to a weighted average of 1.64 per cent on the notional amount. The term and credit facilities with $545 million outstanding (2023 — $400 million) reference Canadian Overnight Repo Rate Average (CORRA) for Canadian-dollar drawings, which replaced the Canadian Dollar Offered Rate (CDOR) on July 1, 2024 as part of Interbank Offered Rate reform. The Poplar Creek non-recoursebond with a face value as at Dec. 31, 2024 of $76 million (2023 — $86 million) pays interest based upon the three-month CORRA. c. Currency Rate Risk The Company has exposure to various currencies, such as the U.S