Company: TCPA
Filing Date: 2025-10-08
Form Type: SUPPL
Source: 0001193125-25-233745
Chunk: 71

Company: TRANSCANADA PIPELINES LTD
Filing Date: 2025-10-08
Form: SUPPL
Chunk 71
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 or citizens of, the U.S. may not be described fully herein or in any applicable prospectus supplement. You should read the tax discussion in any applicable prospectus supplement, however, this prospectus or any applicable prospectus supplement may not fully describe these tax consequences.

Your ability to enforce civil liabilities under U.S. federal securities laws may be affected adversely by the fact that we are incorporated under the laws of Canada, that some or all of our officers and directors may be residents of Canada, that some or all of the experts named in the registration statement may be residents of Canada and that all or a substantial portion of our assets and the assets of said persons are located outside the U.S.

As of the date hereof, the Corporation has determined that it qualifies as a “well-known seasoned issuer” under the WKSI Blanket
Orders (as defined herein). See “Reliance on Exemptions for Well-Known Seasoned Issuers”.

Scott B. Bonham, Cheryl F.
Campbell, Bill Johnson, John E. Lowe, Mary Pat Salomone, Thierry Vandal and Dheeraj Verma are directors of the Corporation who reside outside of Canada and each of these directors has appointed the Corporation as agent for service of process at
450 - 1st Street, S.W., Calgary, Alberta, Canada T2P 5H1. Purchasers are advised that it may not be possible for investors to enforce judgments obtained in Canada against any person who resides outside of Canada, even if the party has
appointed an agent for service of process.

THESE DEBT SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE U.S. SECURITIES AND EXCHANGE COMMISSION (THE “SEC”) OR ANY STATE SECURITIES COMMISSION NOR HAS THE SEC OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

The date of this prospectus is December 5, 2024

TABLE OF CONTENTS

|                                                        |     | Page |    |
| FORWARD-LOOKING INFORMATION                            |     |      |  1 |
| ABOUT THIS PROSPECTUS                                  |     |      |  3 |
| EXEMPTIVE RELIEF                                       |     |      |  3 |
| DOCUMENTS INCORPORATED BY REFERENCE                    |     |      |  4 |
| MARKETING