Denison Mines Corp 6-K, filed Aug 5, 2025
Denison Mines Corp. (DNN)
6-K
2025-08-05
For: 2025-08-05
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Added on
April 07, 2026
About this 6-K
Denison Mines Corp filed this 6-K on August 5, 2025.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE
13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Date: August 5, 2025
Commission File Number: 001-33414
Denison Mines Corp.
(Name of
registrant)
1100-40 University Avenue
Toronto Ontario
M5J 1T1 Canada
(Address of
principal executive offices)
Indicate by check mark whether the registrant files
or will file annual reports under cover Form 20-F or Form
40-F.
Form
20-F ☐ Form 40-F ☒
Indicate by check mark if the registrant is submitting the
Form 6-K in paper as permitted by Regulation S-T Rule
101(b)(1): ☐
Indicate by check mark if the registrant is submitting the
Form 6-K in paper as permitted by Regulation S-T Rule
101(b)(7): ☐
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act
of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly
authorized.
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DENISON MINES
CORP.
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/s/ Amanda Willett
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Date: August 5,
2025
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Amanda
Willett
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Vice
President Legal and Corporate Secretary
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FORM 6-K
EXHIBIT INDEX
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Exhibit Number
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Description
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99.1
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Press release dated August 5, 2025 |
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Exhibit 99.1
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Denison Mines
Corp.
1100 – 40
University Ave
Toronto, ON M5J
1T1
www.denisonmines.com
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PRESS
RELEASE
Denison
Receives Provincial Environmental Assessment Approval
for the
Wheeler River Project
Toronto, ON – August 5,
2025. Denison Mines Corp. (“Denison” or the “Company”) (TSX: DML; NYSE American: DNN) is pleased
to announce that it has received Ministerial approval under
The Environmental
Assessment Act (Saskatchewan)
to proceed with the development of the In-Situ Recovery
(“ISR”) uranium mine planned for the Wheeler River
Project (the “Project”).
As
part of Denison’s strategy to effectively harmonize the
Federal and Provincial Environmental Assessment (the
“EA”) for the Project, the Provincial EA was submitted
for final approval in late 2024 after Denison successfully
completed multiple key milestones in the Federal regulatory
process, including completion of the Canadian Nuclear Safety
Commission’s (“CNSC”) rigorous technical review
phase, and acceptance by the CNSC of the Company's final
Environmental Impact Statement (“EIS”) for the Project.
As a result of this approach, the Federal and Provincial EAs for
the Project are substantially the same and no subsequent revisions
for conformance are expected to be required.
“Saskatchewan
is the world’s second-largest uranium producer, and remains a
destination of choice for mining investment due to our abundant
natural resources and strong regulatory environment,”
Saskatchewan Premier Scott Moe
said. “The
province continues to be a national leader in safe and sustainable
mining practices, well positioning Canada as an emerging energy
superpower. As demand for these resources increase, we are pleased
to see this project move ahead, further enhancing
Saskatchewan’s world class energy sector, while bringing new
jobs and opportunities to northern
communities.”
“I
would like to congratulate Denison Mines on this significant
project milestone with their Wheeler River
Project”, commented the
Honourable Travis Keisig, Saskatchewan Minister of
Environment. “We look forward to
working with Denison as this project progresses and are excited
that they have chosen Saskatchewan as a place to do
business.”
David Cates, President and CEO of Denison,
commented, “We
thank the Province of Saskatchewan for entrusting Denison to
proceed with the development of the Project, which is expected to
set a superior standard of sustainability as the first ISR uranium
mine in Canada. We applaud the work of the Provincial Government to
uphold the province’s rigorous environmental regulations,
while simultaneously recognizing the important role that the
natural resources sector can play in driving societal wellbeing.
The Province of Saskatchewan is truly a leading jurisdiction for
sustainable natural resource investments.
I’d also like to applaud our own environmental, regulatory,
sustainability and technical teams for working closely with the
Saskatchewan Ministry of the Environment, Indigenous nations, local
communities, and other interested parties during the EA process.
Importantly, completion of the provincial EA represents one of the
final regulatory milestones necessary for Denison to commence
construction of the Phoenix ISR mine, which is on track to become
Canada’s next new large-scale uranium
mine.”
With
the Provincial EA approved, the remaining regulatory requirements
to commence construction of the ISR mine planned for the Phoenix
deposit include receipt of the Provincial Pollutant Control
Facility Permit, as well as the Federal approval of the EA and
receipt of the Federal License to Prepare the Site & Construct.
Both outstanding Federal approvals are the subject of the CNSC
public hearings for the Project scheduled in October and December
2025.
About Wheeler River
Wheeler River is the largest undeveloped uranium project in the
infrastructure-rich eastern portion of the Athabasca Basin region,
in northern Saskatchewan. The project is host to the high-grade
Phoenix and Gryphon uranium deposits, discovered by Denison in 2008
and 2014, respectively, and is a joint venture between Denison (90%
and operator) and JCU (Canada) Exploration Company Limited
(“JCU”, 10%). In August 2023, Denison filed a technical
report summarizing the results of (i) the feasibility study
completed for ISR mining of the high-grade Phoenix uranium deposit
and (ii) a cost update to the 2018 Pre-Feasibility Study for
conventional underground mining of the basement-hosted Gryphon
uranium deposit. More information on the studies is available in
the technical report titled “NI 43-101 Technical Report on
the Wheeler River Project Athabasca Basin, Saskatchewan,
Canada” dated August 8, 2023, with an effective date of June
23, 2023, a copy of which is available on Denison's website and
under its profile on SEDAR+ at www.sedarplus.ca and on EDGAR at
www.sec.gov/edgar.
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 planned Phoenix ISR operation
commenced in 2019 and are nearing completion with approval of the
project’s EA received from the Province of Saskatchewan and
CNSC hearing dates set in the fall of 2025 for Federal approval of
the EA and project construction license.
About Denison
Denison is a uranium mining, exploration and development company
with interests focused in the Athabasca Basin region of northern
Saskatchewan, Canada. In addition to Denison’s effective 95%
interest in its flagship Wheeler River Project, Denison’s
interests in Saskatchewan also include a 22.5% ownership interest
in the McClean Lake Joint Venture (“MLJV”), which
includes unmined uranium deposits (with mining at the McClean North
deposit via the MLJV's SABRE mining method having commenced 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 agreement), plus a 25.17% interest
in the Midwest Joint Venture’s 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 direct 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 additional
interests in various uranium project joint ventures in Canada,
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
X (formerly Twitter) @DenisonMinesCo
Cautionary Statement Regarding Forward-Looking
Statements
Certain information contained in this press release constitutes
‘forward-looking information’ within the meaning of the
applicable United States and Canadian legislation, concerning the
business, operations and financial performance and condition of
Denison. Generally, these forward-looking statements can be
identified by the use of forward-looking terminology such as
‘potential’, ‘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’ or
‘be achieved’.
In particular, this press release contains forward-looking
information pertaining to the following: expectations with respect
to the EA process, including the filing of the final EIS and the
results and objectives thereof; expectations regarding regulatory
reviews and processes, including hearings with the CNSC Commission;
and expectations regarding its joint venture ownership interests,
including plans for mining and the use of SABRE by the MLVJ, and
the continuity of its agreements with its partners and 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 cause the actual results, level of activity, performance
or achievements of Denison to be materially different from those
expressed or implied by such forward-looking statements. Denison
believes that the expectations reflected in this forward-looking
information are reasonable but no assurance can be given that these
expectations will prove to be accurate and results may differ
materially from 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 Denison’s Annual Information Form dated
March 28, 2025 under the heading ‘Risk Factors’ or in
subsequent quarterly financial reports. These factors are not, and
should not be construed as being, exhaustive.
Accordingly, readers should not place undue reliance on
forward-looking statements. The forward-looking information
contained in 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 release to conform such information to actual
results or to changes in Denison's expectations except as otherwise
required by applicable legislation.