Company: TCPA
Filing Date: 2025-10-08
Form Type: SUPPL
Source: 0001193125-25-233745
Chunk: 57

Company: TRANSCANADA PIPELINES LTD
Filing Date: 2025-10-08
Form: SUPPL
Chunk 57
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 offering price may be decreased and may be further changed from time to time to an amount not greater than the price specified on the cover page of this prospectus supplement. Thus, the prices paid for Notes may vary from purchaser to purchaser and may vary during the period of distribution. In the event the offering price of the Notes is reduced, the compensation received by the Underwriters will be decreased by the amount by which the aggregate price paid by the purchasers for the Notes is less than the gross proceeds paid by the Underwriters to us for the Notes. Any such reduction will therefore not affect the proceeds we receive. Overallotment Option We have granted the Underwriters an option to purchase up to an additional U.S.$25,000,000 aggregate principal amount of Notes. Upon mutual agreement between us and the Underwriters, the Underwriters may exercise this option for 30 days from the date of this prospectus supplement solely to cover overallotments. If the Underwriters exercise this option, each Underwriter will be obligated, subject to conditions contained in the Underwriting Agreement, to purchase from us a principal amount of Notes proportionate to such Underwriter’s initial principal amount of Notes to be purchased, as reflected in the above table. Assuming full exercise of this overallotment option, the amounts stated on the cover page of this prospectus supplement would increase as shown below:

|                             |     | Without 
 Option  |             |     | With Option |             |
| Price to Public(1)          |     | U.S.$   | 350,000,000 |     | U.S.$       | 375,000,000 |
| Underwriting Commission(2)  |     | U.S.$   |  11,025,000 |     | U.S.$       |  11,812,500 |
| Proceeds Before Expenses(3) |     | U.S.$   | 338,975,000 |     | U.S.$       | 363,187,500 |

| (1) | The public offering price set forth above does not include accrued interest, if any. |

| (2) | In consideration of the services of the Underwriters in connection with the offering of the Notes, we have                                                                                                                                   
 agreed to pay to the Underwriters a commission equal to: (a) for Notes sold to institutions, 1.000% of the principal amount of such Notes; and (b) for all other Notes purchased by the Underwriters, 3.150% of the principal