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.

TransCanada Corporation will hold a teleconference and webcast on Thursday, November 1, 2018 to discuss its third quarter 2018 financial results.

tc-code-d-ethique-professionnelle.pdf

TransCanada Corporation a annoncé aujourd’hui qu’elle mettrait à exécution son projet de développement du système NOVA Gas Transmission Ltd. (NGTL) d’une valeur de 140 millions de dollars, après une période d’appel réussie pour un engagement obligatoire de l’accroissement de la capacité d’exportation au point de livraison Empress/McNeill en mars.

Karl Johannson, executive vice-president and president, Canada and Mexico natural gas pipelines and energy, TransCanada Corporation (TSX:TRP) (NYSE:TRP) (TransCanada), will be presenting at the Peters & Co. Limited 22nd Annual Energy Conference in Toronto on September 12, 2018.

This brochure contains important information about safe excavation near oil pipelines.

At TransCanada, we have been providing customized power solutions for businesses and wholesale consumers in Alberta since 1999, and currently manage, operate and markets close to 375 MW of electricity in Alberta