Exhibit 4
Ontario Securities Commission | Commission des valeurs mobilières de I ’Ontario | P.O. Box 55, 19th Floor 20 Queen Street West Toronto ON M5H 3S8 | CP 55, 19e étage 20, rue queen ouest Toronto ON M5H 3S8 |
RECEIPT
Denison Mines Corp.
This is the receipt of the Ontario Securities Commission for the Preliminary Short Form Prospectus of the above Issuer dated December 9, 2010 (the preliminary prospectus).
The preliminary prospectus has been filed under Multilateral Instrument 11-102Passport System in British Columbia, Alberta and Nova Scotia. A receipt for the preliminary prospectus is deemed to be issued by the regulator in each of those jurisdictions, if the conditions of the Instrument have been satisfied.
December 9, 2010
LeslieByberg | ||||
Director, Corporate Finance | ||||
SEDAR Project # 1674373 |