Denison Announces Filing of Annual Report on Form 40-F
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Denison Mines Corp.
1100 – 40 University Ave
Toronto, ON M5J 1T1
www.denisonmines.com
PRESS RELEASE
Denison Announces Filing of Annual Report on Form 40-F
Toronto, ON – March 28, 2025. Denison Mines Corp. (“Denison” or the “Company”) (TSX: DML, NYSE
American: DNN) is pleased to announce that it has filed its 2024 Annual Report on Form 40-F with the U.S.
Securities and Exchange Commission (“SEC”). Denison’s Form 40-F includes its annual information form,
management discussion and analysis, and audited financ ial statements for the year ended December 31,
2024. The Form 40-F will be available on Denison’s website at www.denisonmines.com and on the SEC’s
website at www.sec.gov/edgar.
Denison’s annual information form has also been filed wi th Canadian regulatory authorities and will be
available on Denison’s website at www.denisonmines.com and under the Company’s profile on SEDAR+
at www.sedarplus.ca.
Holders of Denison’s securities may receive a free printed copy of the Company’s most recent Annual
Report on Form 40-F, including the audited financ ial statements, by sending an email request to
[email protected] or by writing to Denison Mines Corp ., 1100 - 40 University Avenue, Toronto,
Ontario, Canada M5J 1T1.
About Denison
Denison is a leading uranium mining, development, and explor ation company with interests focused in the Athabasca
Basin region of northern Saskatchewan, Canada. Denison has an effective 95% interest in its flagship Wheeler River
Uranium Project, which is the largest undeveloped uranium project in the infrastructure ri ch eastern portion of the
Athabasca Basin region of northern Saskatchewan. In mid-2 023, the Phoenix feasibility study was completed for the
Phoenix deposit as an ISR mining operation, and an update to the previously prepared 2018 Pre-Feasibility Study
('PFS') was completed for Wheeler River's Gryphon deposi t as a conventional underground mining operation. Based
on the respective studies, both deposits have the potential to be competitive with the lowest cost uranium mining
operations in the world. Permitting efforts for the plan ned Phoenix ISR operation commenced in 2019 and several
notable milestones were achieved in 2024 with the submis sion of federal licensing documents and the acceptance of
the final form of the project’s Envi ronmental Impact Statement by the Prov ince of Saskatchewan and the Canadian
Nuclear Safety Commission.
Denison's interests in Saskatchewan also include a 22.5% ownership interest in the McClean Lake Joint Venture
('MLJV'), which includes unmined uranium deposits (pla nned for extraction via the MLJV's SABRE mining method
starting in 2025) and the McClean Lake uranium mill (currently utilizing a portion of its licensed capacity to process the
ore from the Cigar Lake mine under a toll milling agreemen t), plus a 25.17% interest in the Midwest Joint Venture
Midwest Main and Midwest A deposits, and a 70.55% interest in the Tthe Heldeth Túé ('THT') and Huskie deposits on
the Waterbury Lake Property. The Midwest Main, Midwest A, THT and Huskie deposits are located within 20 kilometres
of the McClean Lake mill. Taken together, Denison has dir ect ownership interests in properties covering ~384,000
hectares in the Athabasca Basin region.
Additionally, through its 50% ownership of JCU (Canada ) Exploration Company, Limited ('JCU'), Denison holds
interests in various uranium project joint ventures in Ca nada, including the Millennium project (JCU, 30.099%), the
Kiggavik project (JCU, 33.8118) and Christie Lake (JCU, 34.4508%).
In 2024, Denison celebrated its 70th year in uranium mining, exploration, and development, which began in 1954 with
Denison’s first acquisition of mining claims in the Elliot Lake region of northern Ontario.
For more information, please contact
David Cates (416) 979-1991 ext. 362
President and Chief Executive Officer
Geoff Smith (416) 979-1991 ext. 358
Vice President Corporate Development & Commercial
Follow Denison on Twitter @DenisonMinesCo
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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS
Certain information contained in this pre ss release constitutes ‘forward-looking info rmation’, within the meaning of the applic able
United States and Canadian legislation conc erning the business, operations and financ ial performance and condition of Denison.
Generally, these forward-looking statements c an be identified by the use of forward-look ing terminology such as ‘plans’, ‘expects’,
‘budget’, ‘scheduled’, ‘estimates’, ‘forecasts’, ‘intends’, ‘anticipates’, or ‘believes’, or the negatives and/or variations of such words and
phrases, or state that certain actions, events or results ‘may’, ‘could’, ‘would’, ‘might’ or ‘will be taken’, ‘occur’, ‘be achieved’ or ‘has
the potential to’. In particular, this press release contains forward-looking information pert aining to the following: Denison ’s
development plans for Wheeler River and the proposed ISR operation for the Phoenix deposit; expectations regarding Denison’s joint
venture ownership interests; and expectations regarding the objectives and continuity of its agreements with third parties.
Forward looking statements are based on the opinions and estimates of management as of the date such statements are made, and
they are subject to known and unknown risks, uncertainties and other factors that may c ause the actual results, level of activi ty,
performance or achievements of Denison to be materially different from those expre ssed or implied by such forward-looking
statements. For example, the results of the Hearing may not be as anticipated. In addition, Deni son may decide or otherwise be
required to discontinue development work if it is unable to maintain or otherwise secu re the necessary approvals or resources (such
as testing facilities, capital funding, etc.). Denison believes that the expectations reflected in this forward-looking inform ation are
reasonable, but no assurance can be given that these expectations will prove to be accu rate and results may differ materially f rom
those anticipated in this forward-looking information. For a discussion in respect of risks and other factors that could influence forward-
looking events, please refer to the factors discussed in the Company’s annual information form for the year ended December 31, 2024
under the heading ‘Risk Factors’. These factors are not, and should not be, construed as being exhaustive.
Accordingly, readers should not place undue re liance on forward-looking statements. The forward-looking information contained i n
this press release is expressly qualified by this cautionary statement. Any forward-looking information and the assumptions made with
respect thereto speaks only as of the date of this press release. Denison does not undertake any obligation to publicly update or revise
any forward-looking information after the date of this press rel ease to conform such information to actual results or to change s in
Denison's expectations except as otherwise required by applicable legislation.