Company: TCPA
Filing Date: 2025-07-31
Form Type: 6-K
Source: 0001232384-25-000066
Chunk: 1

Company: TRANSCANADA PIPELINES LTD
Filing Date: 2025-07-31
Form: 6-K
Chunk 1
---
 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
| 13.1 
 13.2 |     | Management’s Discussion and Analysis of Financial Condition and Results of Operations of TC Energy Corporation as at and for the period endedJune 30, 2025.                                                          
 Consolidated comparative interim unaudited financial statements of TC Energy Corporation for the period endedJune 30, 2025 (included in TC Energy Corporation'sSecondQuarter 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 ofJuly31, 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: July 31, 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                                                               |
|                     |     |                               |     | Y