In accordance with Certificate Condition 21 and Condition 5 of the Order, NGTL encloses the Commitment Tracking Table for the Project. The reporting period for this submission is February 15, 2017 to March 15, 2017.

This document is a comprehensive report on a company's activities throughout the preceding year.

News Release — TransCanada Corporation (TSX, NYSE: TRP) (TransCanada) today announced net income attributable to common shares for fourth quarter 2018 of $1.1 billion or $1.19 per share compared to net income of $0.9 billion or $0.98 per share for the same period in 2017.

This submission describes the Commitment Tracking Table No. 2 dated from September 2, 2015 to March 31, 2017 for the Towerbirch Expansion Project.

In accordance with Certificate Condition 6 and Order Condition 7, NGTL encloses Commitment Tracking Table No. 3 for the Project. The reporting period for this submission is April 3, 2017 to April 30, 2017.