CALGARY, Alberta – May 24, 2018 – News Release – TransCanada Corporation (TSX, NYSE: TRP) (TransCanada) announced today that the National Energy Board (NEB) has recommended the federal government approve a variance to the previously issued North Montney Mainline Project certificate, which would allow construction to start on the proposed $1.4 billion natural gas project in northeast British Columbia.

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TC Energy’s Alberta Power Business manages, operates and markets close to 450 megawatts of electricity within the province.

In accordance with Certificate Condition 6 and Order Condition 7, NGTL encloses Commitment Tracking Table No. 9 for the Project. The reporting period for this submission is September 29, 2017 to October 27, 2017.

In accordance with Condition 5 of the Certificate and Condition 6 of Order XG-N081-013-2016, NGTL encloses the Commitment Tracking Table for the Project. The reporting period for this submission is March 31, 2015 to December 15, 2016.