News Release — TransCanada Corporation announced today that its wholly-owned subsidiary, NOVA Gas Transmission Ltd. (NGTL), has filed an application with the National Energy Board for approval of a negotiated settlement with its customers and other interested parties on the annual costs required to operate the NGTL System for 2018 and 2019.

TransCanada Corporation has been notified of an unsolicited mini-tender offer by TRC Capital Corporation (TRC Capital) to purchase up to 2,500,000 common shares of TransCanada, representing approximately 0.28 per cent of TransCanada's outstanding common shares at a price of CDN $55.35 per common share. TransCanada does not endorse this unsolicited mini-tender offer.

Saddle Lake Lateral - Commitment Table No. 11

TransCanada Corporation announced that the Board of Directors (Board) of TransCanada declared a quarterly dividend of $0.69 per common share for the quarter ending September 30, 2018, on the Company’s outstanding common shares.

TransCanada Corporation announced that it has entered into an agreement to sell its 62 per cent share of the Cartier wind power facilities, and its related operating entities, to Innergex Renewable Energy Inc. for approximately $630 million.

TransCanada has today filed with Canadian securities authorities: Audited Consolidated Financial Statements for the year ended December 31, 2017 with related Management's Discussion and Analysis (Annual Report); and The company's Annual Information Form for the year ended December 31, 2017.