The technical report entitled Technical Report with an Updated Mineral Resource
Estimate for the Waterbury Lake Property, Northern Saskatchewan dated December 21, 2018 was authored by Serdar Donmez, P.Geo.,E.I.T., Dale Verran, Pr.Sci.Nat., P.Geo., and Paul Burry, P.Geo. of Denison, Oy Leuangthong, P.Eng, and Cliff
Revering, P.Eng, of SRK, Allan Armitage, P.Geo, of SGS Geostat and Alan Sexton, P.Geo, of GeoVector Management Inc. (GeoVector). Each of Messrs. Leuangthong, Revering, Armitaage and Sexton, and their respective firms, are
independent in accordance with the requirements of NI 43-101.
Roscoe Postle Associates Inc.
(RPA), which was retained to independently review and audit the mineral reserves and mineral resources in accordance with the requirements of NI 43-101, prepared the following technical
reports: (a) the technical report entitled Technical Report on the Denison Mines Inc. Uranium Properties, Saskatchewan, Canada dated November 21, 2005, as revised February 16, 2006 by Richard E. Routledge, M.Sc., P.Geo.
and James W. Hendry, P.Eng.; (b) the technical report entitled Technical Report on the Mineral Resource Estimate for the McClean North Uranium Deposits, Saskatchewan dated January 31, 2007 by Richard E. Routledge, M.Sc., P.Geo.; and
(c) the technical report entitled Technical Report on the Sue D Uranium Deposit Mineral Resource Estimate, Saskatchewan, Canada dated March 31, 2006 by Richard E Routledge, M.Sc., P.Geo. and James W. Hendry, P.Eng.
The technical report entitled Technical Report with an Updated Mineral Resource Estimate for the Midwest Property, Northern
Saskatchewan, Canada dated March 26, 2018 was authored by Dale Verran, MSc, Pr.Sci.Nat. and Chad Sorba, P.Geo, of the Company and G. David Keller, PGeo, formerly of SRK, and Oy Leuangthong, PEng, of SRK. Each of Messrs. Keller and
Leuangthong and SRK are independent in accordance with the requirements of NI 43-101.
To the
knowledge of Denison as of the date hereof, each of RPA, GeoVector, SGS Geostat, and SRK and each of their respective partners, employees and consultants who participated in the preparation of the aforementioned reports, or who were in a position to
influence the outcome of such reports, are the registered or beneficial owner, directly or indirectly, of less than one percent of the outstanding Common Shares.
WHERE YOU CAN FIND MORE INFORMATION
We are required to file with the securities commission or authority in each of the applicable provinces of Canada annual and quarterly
reports, material change reports and other information. In addition, we are subject to the informational requirements of the Exchange Act, and, in accordance with the Exchange Act, we also file reports with, and furnish other information to, the
SEC. Under a multijurisdictional disclosure system adopted by the United States and Canada, these reports and other information (including financial information) may be prepared in accordance with the disclosure requirements of Canada, which differ
in certain respects from those in the United States. As a foreign private issuer, we are exempt from the rules under the Exchange Act prescribing the furnishing and content of proxy statements, and our officers, directors and principal shareholders
are exempt from the reporting and short-swing profit recovery provisions contained in Section 16 of the Exchange Act. In addition, we are not required to publish financial statements as promptly as U.S. companies.
You may read any document we file with or furnish to the securities commissions and authorities of the provinces of Canada through SEDAR and
any document we file with, or furnish to, the SEC at the SECs public reference room at Station Place, 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at l-800-SEC-0330 for further information on the public reference rooms. Certain of our filings are also electronically available on EDGAR, and may be accessed at www.sec.gov.
ENFORCEABILITY OF CIVIL LIABILITIES
We are a company incorporated under the OBCA. Some of our directors and officers, and the experts named in this prospectus, are residents of
Canada or otherwise reside outside the United States, and all or a substantial
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