Company: TCPA
Filing Date: 2025-10-06
Form Type: SUPPL
Source: 0001193125-25-231083
Chunk: 9

Company: TRANSCANADA PIPELINES LTD
Filing Date: 2025-10-06
Form: SUPPL
Chunk 9
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 | our ability to realize the value of tangible assets and contractual recoveries; |

| • |     | competition in the businesses in which we operate; |

| • |     | unexpected or unusual weather; |

| • |     | acts of civil disobedience; |

| • |     | cybersecurity and technological developments; |

| • |     | sustainability-related risks including climate-related risks and the impact of energy transition on our business; |

| • |     | economic and political conditions, and ongoing trade negotiations in North America, as well as globally; and |

| • |     | global health crises, such as pandemics and epidemics, and the impacts related thereto. |

Additional information on these and other factors is discussed in the prospectus and the documents incorporated by reference therein including in the Annual MD&A (as defined herein) under the headings “ Natural Gas Pipelines—Business Risks”, “ Power and Energy Solutions—Business Risks”, “ Other Information—Risk Oversight and Enterprise Risk Management” and “ Other Information—Financial Risks”, and in the Annual Information Form (as defined herein) under the heading “ Risk Factors”, as may be modified or superseded by other subsequently filed documents that are also incorporated or deemed to be incorporated by reference in the prospectus. Readers are cautioned against placing undue reliance on forward-looking information, which is given as of the date it is expressed in this prospectus supplement, the prospectus, or otherwise, and not to use future oriented information or financial outlooks for anything other than their intended purpose. We undertake no obligation to publicly update or revise any forward-looking information in this prospectus supplement, the prospectus, or otherwise, whether as a result of new information, future events or otherwise, except as required by law. DOCUMENTS INCORPORATED BY REFERENCE Pursuant to a decision dated January 3, 2019 granted by the Alberta Securities Commission (as principal regulator) and the Ontario Securities Commission pursuant to National Policy 11-203 Process for Exemptive Relief Applications in Multiple Jurisdictions(the “ Decision”), the Corporation is not subject to certain continuous disclosure requirements, provided, among other things, that TCE, the company which owns all of the outstanding common shares of the Corporation, complies with its continuous disclosure requirements, including S-4

filing its own continuous disclosure documents. The Decision further permits the Corporation to incorporate by reference in the prospectus all information or documents that would be required to be incorporated by reference in a short form prospectus filed by TCE