<Page> Exhibit 3.5 NOVA SCOTIA LOGO CERTIFICATE OF INCORPORATION Companies Act REGISTRY NUMBER 3090671 NAME OF COMPANY 3090671 NOVA SCOTIA COMPANY I hereby certify that the above-mentioned company was incorporated this date under the Companies Act and that the liability of the members is unlimited. /s/ [ILLEGIBLE] June 22, 2004 - --------------------------------------------- --------------------- Agent of the Registrar of Joint Stock Companies Date of Incorporation