This submission describes the Commitment Tracking Table No. 10 dated from September 2, 2015 to November 30, 2017 for the Towerbirch Expansion Project.

This information circular is a document for a company’s shareholders, outlining important matters on the agenda at the annual shareholders' meeting, or at a special shareholders' meeting. The information circular also solicits proxy votes and provides procedures for voting on key issues.

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 November 15, 2016.

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.