Company: TSLTF
Filing Date: 2025-12-12
Form Type: SUPPL
Source: 0001193125-25-317786
Chunk: 11

Company: TRANSALTA CORP
Filing Date: 2025-12-12
Form: SUPPL
Chunk 11
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 constituted a misrepresentation, an untrue statement of a material fact or an omission to state a material fact that is required to be stated or that is necessary to make a statement not misleading in light of the circumstances in which it was made. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Prospectus Supplement. We will provide without charge to each person to whom this Prospectus Supplement is delivered, including any beneficial owner, upon written or oral request of such person, a copy of any or all of the documents incorporated by reference in the Prospectus (other than exhibits to such documents, unless such exhibits are specifically incorporated by reference in such documents). Requests should be directed to TransAlta Corporation, TransAlta at Suite 1400, 1100 1st Street S.E., Calgary, Alberta, T2G 1B1, Attention: Corporate Secretary, telephone number (403) 267-7110.These documents are also available on SEDAR+ at www.sedarplus.ca and on EDGAR at www.sec.gov . S-4

WHERE YOU CAN FIND MORE INFORMATION

We have filed with the SEC under the U.S. Securities Act a registration statement on
Form F-10 relating to the Notes and of which this Prospectus Supplement and the Prospectus form a part. This Prospectus Supplement and the Prospectus do not contain all of the information set forth
in such registration statement, certain items of which are contained in the exhibits to such registration statement as permitted or required by the rules and regulations of the SEC. See “Documents Filed as Part of the Registration Statement” in the Prospectus. Statements made in this Prospectus Supplement and the Prospectus as to the contents of any contract, agreement or other document referred to are not necessarily complete, and in each instance, reference is
made to the exhibit, if applicable, for a more complete description of the relevant matter, each such statement being qualified in its entirety by such reference. Items of information omitted from this Prospectus Supplement and the Prospectus but
contained in the registration statement on Form F-10 are available on the SEC’s website at www.sec.gov.

We are subject to the information requirements of the U.S. Exchange Act, and, in
accordance therewith, file reports and other information with the SEC. Under the multijurisdictional disclosure system adopted in the United States, such reports and other information, subject to certain exceptions, may be prepared