S&P Dow Jones Indices Canadian index operations have made index changes as a result of the quarterly S&P/TSX Composite Shareholder Yield and the S&P/TSX Composite Buyback indices reviews. These changes will be effective prior to the open of trading on Monday, Jan. 22, 2018.

             S&P/TSX COMPOSITE SHAREHOLDER YIELD INDEX,
          JANUARY, 2018, QUARTERLY INDEX REVIEW, DELETION

Symbol  Issue name                                       Cusip No.

EFX     Enerflex Ltd.                                    29269R 10 5