An investment in the debt securities involves risk. Before deciding whether to invest in the debt securities, you should consider carefully the risks described in the documents incorporated by reference into this prospectus (including subsequent documents incorporated by reference into this prospectus) and, if applicable, those described in a prospectus supplement relating to a specific offering of debt securities. Discussions of certain risks and uncertainties affecting our business are provided in our annual information form and our management’s discussion and analysis for the year ended December 31, 2017 and our management’s discussion and analysis for the three months ended March 31, 2018 (or, as applicable, our annual information form and our management’s discussion and analysis for subsequent periods), each of which is incorporated by reference into this prospectus. These are not the only risks and uncertainties that we face. Additional risks not presently known to us or that we currently consider immaterial may also materially and adversely affect us. If any of the events identified in these risks and uncertainties were to actually occur, our business, financial condition or results of operations could be materially harmed.