tc-Marketlink-FERC-No-3.1.0-Rate-Schedule.pdf

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.

The recent completion of the Murray River Horizontal Directional Drill (HDD) marks a huge milestone for Coastal Gaslink – the largest trenchless water crossing on the project has been completed with zero safety incidents. This 1.3 kilometre section of pipe weighs over 1.2 million pounds, and the 48-inch HDD signifies the largest of its kind for TC Energy and one of the longest in North America. Before work could even begin on-site, years of planning went into making sure everything went smoothly in coordination with our prime contractor Surerus Murphy Joint Venture (SMJV).