SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of ~~October~~November 2025

TC Energy Corporation

(Commission File No. 1-31690)

TransCanada PipeLines Limited

(Commission File No. 1-8887)

(Translation of Registrants’ Names into English)

450 - 1 Street S.W., Calgary, Alberta, T2P 5H1, Canada

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☐o Form 40-F ☑þ

~~Exhibit~~Exhibits 9913.1 and 13.2 to this report, furnished on Form 6-K, isshall ~~furnished, not filed, and will not~~ be incorporated by reference into ~~any~~each ~~registration~~of ~~statement~~the ~~filed~~following byRegistration ~~the~~Statements ~~registrant~~ under the Securities Act of 1933, as amended: Form S-8 (File Nos. 333-5916, 333-8470, 333-9130, 333-151736, 333-184074, 333-227114 and 333-237979), Form F-3 (File Nos. 33-13564 and 333-6132) and Form F-10 (File Nos. 333-250988, 333-252123, 333-267323 and 333-283633).

Exhibits 31.1, 31.2, 32.1, 32.2 and 99.1 to this report, furnished on Form 6-K, are furnished, not filed, and will not be incorporated by reference into any registration statement filed by the registrants under the Securities Act of 1933, as amended.

Explanatory Note

TransCanada PipeLines Limited (“TransCanada PipeLines”) is a wholly owned subsidiary of TC Energy Corporation (“TC Energy”). TransCanada PipeLines is relying on the continuous disclosure documents filed by TC Energy pursuant to an exemption from the requirements of National Instrument 51-102 - Continuous Disclosure Obligations and as provided in the decision of the Alberta Securities Commission and Ontario Securities Commission in Re TransCanada Corporation, 2019 ABASC 1, issued on January 3, 2019. Consistent with the exemptive relief, information contained in this Form 6-K is that provided by TC Energy.

EXHIBIT INDEX

99.1 A copy of the registrants' Code of Business Ethics Policy, as amended.


13.1			Management’s Discussion and Analysis of Financial Condition and Results of Operations of TC Energy Corporation as at and for the period ended September 30, 2025.

13.2			Consolidated comparative interim unaudited financial statements of TC Energy Corporation for the period ended September 30, 2025 (included in TC Energy Corporation's T hird Quarter 2025 Quarterly Report to Shareholders).

31.1			Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2			Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1			Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

32.2			Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

99.1			A copy of the registrant's news release of November 6 , 2025.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: October 29, 2025


Date: November 6, 2025	TC ENERGY CORPORATION TRANSCANADA PIPELINES LIMITED

	By:	/s/ Sean P. O'Donnell
		Sean P. O'Donnell
		Executive Vice-President, Strategy and Corporate Development and Chief Financial Officer


	By:	/s/ Yvonne Frame-Zawalykut
		Yvonne Frame-Zawalykut
		Vice-President and Corporate Controller

TC ENERGY CORPORATION TRANSCANADA PIPELINES LIMITED By: /s/ Jane M. Brindle Jane M. Brindle Vice-President, Law and Corporate Secretary

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