HOUSTON, Texas – March 1, 2019 – News Release – TransCanada Corporation (TSX: TRP) (NYSE: TRP) (TransCanada) today announced the Federal Energy Regulatory Commission (FERC) has approved the full in-service of its Mountaineer XPress (MXP) project, allowing the company to increase the flow of gas on MXP and begin operating its Gulf XPress (GXP) project.

The TQM Pipeline System is a 573 km natural gas pipeline network in the Province of Quebec between Saint-Lazare, located west of Montreal, and Saint-Nicolas, located on the South Shore of Quebec City, and between Lachenaie, located East of Montreal, and East Hereford on the New Hampshire border.

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The document listed below in this Section and filed as Exhibit 99.1 to this Form 6-K is hereby filed with the Securities and Exchange Commission for the purpose of being and hereby is incorporated by reference into Registration Statement on Form F-9 (Reg. No. 333-121265) under the Securities Act of 1933, as amended.

This pipeline expansion project in western Alberta expanded pipeline capacity for the transportation of natural gas to growing markets located in central and southern Alberta from the Peace River Project Area.