Cameco

Documents
(SEDAR filing: 7 November 2012) Prospectus Supplement of Cameco Corporation (the "Company") for offering of 3.75% Senior Unsecured Debentures, Series E due 2022 and 5.09% Senior Unsecured Debentures, Series F due 2042 (321 K). Osler/Borden
Summaries
Summary Under
Tax Topics - Public Transactions - Offerings - Debentures
Cameco offering of 10-year and 30-year standard unsecured debentures
Offering

Offering of $400,000 of 3.75% senior unsecured Debentures, Series E due November 14, 2022 at a price of $999.92, and 5.09% senior unsecured Debentures, Series F due November 14, 2042, at $999.54. Under both series the interest is calculated and payable semi-annually.

Terms

The offered debentures are redeemable at the option of the Company at any time at the higher of (a) the Canada Yield Price (of +0.485% and +0.685% for the Series E and F, respectively) and (b) par, together with accrued but unpaid interest. Upon a Change of Control Triggering Event (defined as the occurrence both of a change of control and the rating of the offered debentures falling below investment grade), the Company is required to offer to repurchase at 101% of the amount owing.

Canadian tax consequences

Standard, including deductibility of pre-issue interest.