THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE UNITED STATES SECURITIES AND EXCHANGE
COMMISSION (THE SEC) OR ANY STATE OR CANADIAN SECURITIES COMMISSION NOR HAS ANY SUCH SECURITIES REGULATORY AUTHORITY PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENCE.
Investing in Securities of the Company involves a high degree of risk. You should carefully review the risks outlined in this Prospectus (together
with any Prospectus Supplement) and in the documents incorporated by reference in this Prospectus and any Prospectus Supplement and consider such risks in connection with an investment in such Securities. See Risk
Factors.
Prospective investors should be aware that the acquisition of the Securities described herein may have tax consequences
both in the United States and in Canada. Such consequences for investors who are resident in, or citizens of, the United States may not be described fully herein. Prospective investors should read the tax discussion contained in the applicable
Prospectus Supplement with respect to a particular offering of Securities.
The specific terms of the Securities with respect to a particular offering
will be set out in one or more Prospectus Supplements and may include, where applicable: (i) in the case of Common Shares, the number of Common Shares offered, the offering price and any other specific terms; (ii) in the case of Warrants
or Options, the number of Warrants or Options offered, the offering price, the designation, number and terms of the Common Shares issuable upon exercise of the Warrants or Options, any procedures that will result in the adjustment of these numbers,
the exercise price, dates and periods of exercise, the currency in which the Warrants or Options are issued and any other specific terms; (iii) in the case of Subscription Receipts, the number of Subscription Receipts offered, the offering
price, the procedures for the exchange of the Subscription Receipts for Common Shares or Warrants, as the case may be, and any other specific terms; (iv) in the case of Debt Securities, the specific designation, aggregate principal amount, the
currency or the currency unit for which the Debt Securities may be purchased, the maturity, interest provisions, authorized denominations, offering price, covenants, events of default, any terms for redemption, any exchange or conversion terms,
whether the debt is senior, senior subordinated or subordinated, whether the debt is secured or unsecured and any other terms specific to the Debt Securities being offered; and (v) in the case of Units, the designation, number and terms of the
Common Shares, Warrants, Options, Subscription Receipts or Debt Securities comprising the Units. Where required by statute, regulation or policy, and where Securities are offered in currencies other than Canadian dollars, appropriate disclosure of
foreign exchange rates applicable to the Securities will be included in the Prospectus Supplement describing the Securities.
In addition, the Debt
Securities that may be offered may be guaranteed by certain direct and indirect subsidiaries of Aurora with respect to the payment of the principal, premium, if any, and interest on the Debt Securities. The Company expects that any guarantee
provided in respect of senior Debt Securities would constitute a senior and unsecured obligation of the applicable guarantor. For a more detailed description of the Debt Securities that may be offered, see Description of Securities
Debt Securities - Guarantees, below.
All information permitted under applicable securities legislation to be omitted from the Prospectus will
be contained in one or more Prospectus Supplements that is required to be delivered to purchasers together with the Prospectus, except in cases where an exemption from such delivery requirement is available. Each Prospectus Supplement will be
incorporated by reference into the Prospectus for the purposes of applicable securities legislation as of the date of the Prospectus Supplement and only for the purposes of the distribution of the Securities to which the Prospectus Supplement
pertains. Investors should read the Prospectus and any applicable Prospectus Supplement carefully before investing in the Securities.
This Prospectus
constitutes a public offering of the Securities only in those jurisdictions where they may be lawfully offered for sale and only by persons permitted to sell the Securities in such jurisdictions. We may offer and sell Securities to, or through,
underwriters, dealers or selling securityholders, directly to one or more other purchasers, or through agents pursuant to exemptions from registration or qualification under applicable securities laws. A Prospectus Supplement relating to each issue
of Securities will set forth the names of any