PBCN backs Denison Mines (NYSE: DNN) Wheeler River uranium project after court review withdrawal
Filing Impact
Filing Sentiment
Form Type
6-K
Rhea-AI Filing Summary
Denison Mines Corp. reports that Peter Ballantyne Cree Nation has withdrawn its judicial review application challenging the provincial Environmental Assessment approval for the Phoenix in-situ recovery uranium mine. Following further engagement, PBCN has formally provided its consent to and support for development and operation of the Wheeler River Project in northern Saskatchewan.
The release outlines Wheeler River as Denison’s flagship uranium asset, hosting the high-grade Phoenix and Gryphon deposits in a joint venture where Denison holds a 90% interest and acts as operator, with JCU holding 10%. Regulatory milestones include Environmental Assessment approvals by Saskatchewan in July 2025 and by the Canadian Nuclear Safety Commission, along with a construction licence, in February 2026.
Site preparation and early works construction for Phoenix began in March 2026, with first production targeted for 2028. Denison also highlights extensive additional interests in the Athabasca Basin region, including stakes in the McClean Lake and Midwest joint ventures and the Tthe Heldeth Túé and Huskie deposits, plus a 50% interest in JCU and a ~457,000-hectare land position.
Positive
- Community consent and litigation withdrawal: Peter Ballantyne Cree Nation has withdrawn its judicial review of the Phoenix Environmental Assessment and has formally consented to and supported development and operation of the Wheeler River Project, reducing legal and stakeholder risk around Denison’s flagship uranium asset.
Negative
- None.
Insights
PBCN’s withdrawal and consent reduce legal risk around Denison’s key Wheeler River uranium project.
The update shows a First Nation that had pursued judicial review of the Phoenix Environmental Assessment now withdrawing its court challenge and formally supporting Wheeler River’s development and operation. This directly addresses a key social licence and permitting risk around Denison’s flagship uranium project.
Regulatory approvals are already in place at the provincial and federal level, and Phoenix site work began in March 2026 with first production targeted for 2028. With PBCN consent, execution risk increasingly centers on technical performance and capital/resources, as described in Denison’s technical studies and risk disclosures, rather than on legal opposition to approvals already granted.
Key Figures
Wheeler River JV ownership: 90% Denison, 10% JCU
Provincial EA approval date: July 2025
Federal EA and construction licence: February 2026
+5 more
8 metrics
Wheeler River JV ownership
90% Denison, 10% JCU
Joint venture interests in Wheeler River Project
Provincial EA approval date
July 2025
Environmental Assessment approval by Province of Saskatchewan for Wheeler River
Federal EA and construction licence
February 2026
Canadian Nuclear Safety Commission approval and construction licence for Wheeler River
Phoenix site work start
March 2026
Commencement of site preparation and early works construction at Phoenix
Phoenix first production target
2028
Targeted start of first production from Phoenix ISR uranium mine
Athabasca land position
~457,000 hectares
Denison’s direct property ownership in Athabasca Basin region
McClean Lake JV interest
22.5%
Denison ownership in McClean Lake Joint Venture
Waterbury Lake THT and Huskie interest
70.55%
Denison stake in THT and Huskie deposits
Key Terms
In-Situ Recovery, Environmental Assessment, construction licence, joint venture, +1 more
5 terms
In-Situ Recovery technical
"Environmental Assessment approval granted by the Province of Saskatchewan for the Phoenix In-Situ Recovery uranium mine"
In-situ recovery is a mining method that extracts a valuable material by dissolving it underground and pumping the solution to the surface instead of digging or blasting rock. For investors, it matters because this approach often lowers upfront construction costs, shortens development time and reduces visible land disturbance, but it also brings regulatory, environmental and groundwater risks that can affect project timelines, operating costs and valuation.
Environmental Assessment regulatory
"judicial review application previously filed ... related to the Environmental Assessment approval granted by the Province of Saskatchewan"
An environmental assessment is a process that evaluates how a project or activity might impact the natural surroundings, such as air, water, land, and wildlife. It helps identify potential environmental risks and ensures that any negative effects are managed or minimized. For investors, this assessment provides insight into the sustainability and long-term viability of projects, which can influence their financial decisions and risk management.
construction licence regulatory
"approval of the Project’s EA and the grant of the construction licence by the Canadian Nuclear Safety Commission"
A construction licence is an official government or municipal permit that authorizes a company to build, expand or alter a physical project, often with specific conditions, inspections and time limits. For investors it matters because the licence controls whether and when a project can proceed, affects costs and timelines, and creates legal risk—similar to needing a permit before starting a major renovation, without which the project can be delayed, fined or stopped.
joint venture financial
"a joint venture between Denison (90% and operator) and JCU (Canada) Exploration Company Limited"
A joint venture is when two or more companies team up to work on a specific project or business idea, sharing both the risks and the rewards. It’s like friends starting a lemonade stand together—each contributes resources and they split the profits, making it easier to succeed than going alone.
NI 43-101 Technical Report regulatory
"technical report titled “NI 43-101 Technical Report on the Wheeler River Project Athabasca Basin, Saskatchewan, Canada”"
A NI 43-101 technical report is a standardized, legally required study used in Canada that describes a mining project’s geology, exploration work, and estimates of how much mineral or ore might exist. Think of it as an independent inspector’s blueprint that explains the data, methods, and uncertainties behind those estimates so investors can judge how reliable the claims are and compare projects on a consistent basis.
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: July 2, 2026
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: July 2, 2026
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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 July 2, 2026 |
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Denison Mines
Corp.
1100 – 40
University Ave
Toronto, ON M5J
1T1
www.denisonmines.com
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PRESS RELEASE
Peter Ballantyne Cree Nation Withdraws Judicial Review
and
Confirms Support for the Wheeler River Project
Toronto, ON – July 2,
2026. Denison Mines Corp. (“Denison” or the “Company”) (TSX: DML, NYSE American: DNN) reports
that Peter Ballantyne Cree Nation (“PBCN”) has
withdrawn its judicial review application previously filed in the
Court of King's Bench for Saskatchewan related to the Environmental
Assessment approval granted by the Province of Saskatchewan for the
Phoenix In-Situ Recovery (“ISR”) uranium mine
(“Phoenix”). As a result of further engagement with
PBCN, Denison is also pleased to report that PBCN has now formally
provided its consent to and support for the development and
operation of Denison’s Wheeler River Project (“Wheeler
River”) in northern Saskatchewan.
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 (the “Wheeler River Report”)
summarizing the results of (i) Phoenix FS; and (ii) a cost update
to the 2018 Pre-Feasibility Study for conventional underground
mining of the basement-hosted Gryphon uranium deposit. 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, culminating in the July 2025 approval of the
Project’s Environmental Assessment (“EA”) by the
Province of Saskatchewan and the February 2026 approval of the
Project’s EA and the grant of the construction licence by the
Canadian Nuclear Safety Commission. Site preparation and early
works construction commenced for Phoenix in March 2026 with first
production targeted for 2028. More information 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, and an update to estimated Phoenix initial capital costs
disclosed by press release dated January 2, 2026, copies of which
are available on Denison’s website and under its profile on
SEDAR+ at www.sedarplus.ca and on EDGAR
at www.sec.gov/edgar.
About Denison
Denison is a leading uranium 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 include a 22.5% ownership interest in the McClean
Lake Joint Venture ("MLJV"), which includes uranium deposits (with
mining at the McClean North deposit having commenced in 2025 using
the MLJV's SABRE mining method) 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 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 ~457,000 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 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 Twitter
@DenisonMinesCo
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING
STATEMENTS
Certain information contained in this news 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 news release contains forward-looking information
pertaining to Denison's current expectations, intentions and
objectives with respect to Wheeler River and Phoenix, including the
Company's outlook generally with respect to ISR mine development
and operations on the Wheeler River property, and the status and
conditions of regulatory approvals.
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. For
example, the results and underlying assumptions and interpretations
of its technical studies and cost forecasting may not be maintained
after further testing, procurement, or operations, or be
representative of actual conditions at the Project or within the
applicable deposits. In addition, Denison may decide or otherwise
be required to discontinue work if it is unable to maintain or
otherwise secure the necessary resources (such as testing
facilities, capital funding, joint venture approvals, regulatory
approvals, etc.). 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 30, 2026 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 news
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 news release. Denison
does not undertake any obligation to publicly update or revise any
forward-looking information after the date of this news release to
conform such information to actual results or to changes in
Denison's expectations except as otherwise required by applicable
legislation.
FAQ
What did Denison Mines (DNN) announce regarding Peter Ballantyne Cree Nation?
Denison announced that Peter Ballantyne Cree Nation withdrew its judicial review of the Phoenix Environmental Assessment and has formally provided consent to, and support for, developing and operating the Wheeler River Project in northern Saskatchewan, improving the project’s community and permitting backdrop.
How does the PBCN decision affect Denison’s Wheeler River Project?
Withdrawal of the judicial review and formal support from PBCN ease a prior source of legal and stakeholder uncertainty around Phoenix and Wheeler River. This aligns an important Indigenous community with the project’s planned development and already-granted environmental and construction approvals.
What stage is Denison’s Phoenix ISR uranium mine at today?
Phoenix has provincial and Canadian Nuclear Safety Commission Environmental Assessment approvals, plus a construction licence. Site preparation and early works construction started in March 2026, and Denison is targeting first uranium production from the Phoenix in-situ recovery operation in 2028, subject to ongoing execution.
What ownership interests does Denison hold in Wheeler River and other projects?
Denison holds a 90% operating interest in the Wheeler River joint venture, with JCU owning 10%. It also owns 22.5% of the McClean Lake Joint Venture, 25.17% of the Midwest Joint Venture, 70.55% of the THT and Huskie deposits, and 50% of JCU itself.
Where is the Wheeler River uranium project located and why is it notable?
Wheeler River is in the infrastructure-rich eastern Athabasca Basin region of northern Saskatchewan. It hosts the high-grade Phoenix and Gryphon deposits and is described as the largest undeveloped uranium project in that part of the basin, with studies indicating strong potential cost competitiveness.
What timeline has Denison provided for first production at Phoenix?
Denison states that site preparation and early works construction at Phoenix began in March 2026, with first production targeted for 2028. This target is based on current plans and remains subject to technical performance, capital availability, and other risks outlined in Denison’s disclosures.