Learn how a "crazy idea" from front-line TransCanada employees to run a PIG (Pipeline Inspection Gauge) almost 1,000 kilometres in a gas pipeline energized the workforce to overcome challenges and resulted in a North American record and a new standard in gas pipeline.

Learn how TransCanada contractor and volunteer firefighter, Chris Wheeler, demonstrated heroic efforts during Hurricane Harvey.

“Sustainability reporting and disclosure is about putting our performance – positive and negative – out there and embracing the opportunity to hear feedback from outside sources on where we are doing well and where we can improve."

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.