Denison CEO Highlights Phoenix Post-Feasibility Study Progress and Company Reports Financial and Operational Results for Q2'2024

Denison Mines Corp. ('Denison' or the 'Company') (TSX: DML) (NYSE American: DNN) today filed its Condensed Consolidated Financial Statements and Management's Discussion & Analysis ('MD&A') for the three and six months ended June 30, 2024 . Both documents will be available on the Company's website at www.denisonmines.com , SEDAR+ (at www.sedarplus.ca ) and EDGAR (at www.sec.govedgar.shtml ). The highlights provided below are derived from these documents and should be read in conjunction with them. All amounts in this release are in Canadian dollars unless otherwise stated. View PDF version

David Cates , President and CEO of Denison commented, "Following the completion of our Phoenix Feasibility Study ('FS') in June 2023 , we embarked on an ambitious 2-year plan to advance towards a final investment decision. At the end of the second quarter of 2024, we have completed 12-months of post-FS project work and have already achieved completion of over 30% total engineering. Our rapid engineering progress is possible because we have built off of the systematic and rigorous technical evaluation and de-risking work that was incorporated into the FS. The FS already reflects the wave of significant cost inflation experienced in the mining sector from 2021 to 2023 and robust project designs that incorporated the learnings from the environmental assessment process as described in our draft Environmental Impact Statement ('EIS') submitted in 2022. Engineering and ongoing long-lead procurement efforts continue to accelerate in accordance with our project plans and guidance targeting first production by 2027 / 2028.

In parallel, we have obtained support for the project from Indigenous and non-Indigenous interested parties – reaching impact-benefit type agreements, supporting the advancement and operation of the Wheeler River project, with each of English River First Nation, Kineepik Métis Local #9, the Village of Pinehouse , and a group of interested northern municipalities (the Northern Village of Beauval , the Northern Village of Île-à-la Crosse, the Northern Hamlet of Jans Bay , and the Northern Hamlet of Cole Bay ). Additionally, we have made significant progress towards the finalization of our EIS, project permitting, and licensing. Based on feedback received to date, we are optimistic that the EIS review process is nearing completion.

Ending Q2 with no debt on the balance sheet and a combination of working capital and investments valued at nearly 95% of Denison's share of the Phoenix FS initial capex means that our Company is very well funded to continue to execute on our project development plans and to deliver a new source of Canadian uranium supply to the market at a time when demand is increasing and securing sustainable and geopolitically stable supply is expected to be a priority for future utility customers.

Beyond Wheeler River, Denison continues to demonstrate its industry leadership in the assessment of the application of the low-cost ISR mining method to the high-grade uranium deposits of the Athabasca Basin. In 2024, we are carrying out field studies and evaluation programs at both the Tthe Heldeth Túé ('THT') and Midwest Main deposits. Working together with Orano Group, a global leader in the nuclear fuel cycle, we recently completed an inaugural field test of ISR mining at the Midwest Main deposit, providing important preliminary validation that the deposit possesses the characteristics necessary for an ISR operation and efforts are now focused on the completion of a Preliminary Economic Assessment(' PEA') during the balance of the year. "

Q2 2024 MD&A Highlights

Completion of Inaugural ISR Field Test Program at Midwest

In June 2024 , Denison and Orano Canada Inc. (' Orano Canada ') announced the completion of an In-Situ Recovery (' ISR ') field test program at the Company's 25.17% owned Midwest Uranium Project ('Midwest'). The program involved drilling ten small diameter boreholes within the Midwest Main deposit primarily undertaken to evaluate site-specific conditions for ISR mining. A series of tests were successfully performed on each borehole , creating an extensive database of geological, hydrogeological , geotechnical , and metallurgical data and validating certain key assumptions in the previously completed internal conceptual mining study (the 'Concept Study') evaluating the potential use of ISR mining at Midwest (see Press Release dated April 12, 2023 ).

Denison carried out the program in collaboration with Orano Canada , as operator and owner of 74.83% of the Midwest Joint Venture (' MWJV '). Highlights from the program include:
- Confirmation of Hydraulic Conductivity: Pump and injection tests validated hydraulic connectivity in the test wells within the mineralized zone and achieved hydraulic conductivity values (a measure of permeability) consistent with the Concept Study. Sufficient permeability within the mineralized zone is a key criterion for the successful deployment of the ISR mining method.
- Demonstrated the Effectiveness of Permeability Enhancement: One method of permeability enhancement was successfully deployed within two wells, demonstrating the suitability of the method to the Midwest Main deposit. Efficiency of permeability enhancement was verified by comparison of pre- and post-permeability enhancement hydraulic testing.
- Metallurgical Samples Defined and Collected for Leaching Characteristics : Core samples representative of the Midwest Main deposit were collected during the program for use in future metallurgical tests to assess leaching characteristics.
Signing of Wheeler River Benefit Agreements with Kineepik Métis Local #9 and the Village of Pinehouse Lake

In early July 2024 , Denison announced the signing of a Mutual Benefits Agreement ('MBA') with Kineepik Métis Local #9 (' KML '), and a Community Benefit Agreement (' CBA ') with the northern Village of Pinehouse Lake (the 'Village'), in support of the development and operation of Denison's 95% owned Wheeler River Project.

The MBA acknowledges that the project is located within KML's Land and Occupancy Area in northern Saskatchewan and provides KML's consent and support to advance the project. Additionally, the MBA recognizes that the development and operation of the project can support KML in advancing its social and economic development aspirations, while mitigating the impacts on the local environment and KML members. Key commitments of the MBA include providing KML and its Métis members an important role in environmental monitoring and commits to the sharing of benefits from the successful operation of the project – including benefits from community investment, business opportunities, employment and training opportunities, and financial compensation.

The CBA acknowledges that the Village is the closest residential community to the project by road, which relies on much of the same regional infrastructure that Denison will rely on as it advances the project. The Village has provided its consent and support for the project, while Denison , on behalf of the Wheeler River Joint Venture, is committed to help the Village develop its own capacity to take advantage of economic and other development opportunities in connection with the advancement and operation of the project.
Appointment of New Board Chair

In May 2024 , following the results of the Annual General Meeting of Shareholders ('AGM') held in Toronto , Denison announced the appointment of Ms. Jennifer Traub as the Company's new Board Chair. The former Board Chair, Mr. Ron Hochstein , did not stand for re-election at the AGM. Ms. Traub, who joined the Denison Board in 2021, is a partner in the Securities Group, and Co-Chair of the Mining Group, at Cassels Brock & Blackwell LLP, and has been recognized as a legal leader in the Canadian resource sector.

About Denison

Denison Mines Corp. was formed under the laws of Ontario and is a reporting issuer in all Canadian provinces and territories. Denison's common shares are listed on the Toronto Stock Exchange (the 'TSX') under the symbol 'DML' and on the NYSE American exchange under the symbol 'DNN'.

Denison is a uranium mining, exploration and development company with interests focused in the Athabasca Basin region of northern Saskatchewan, Canada . The Company has an effective 95% interest in its flagship Wheeler River Uranium Project, which is the largest undeveloped uranium project in the infrastructure rich eastern portion of the Athabasca Basin region of northern Saskatchewan . In mid-2023, the Phoenix FS 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 deposit 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 planned Phoenix ISR operation commenced in 2019 and have advanced significantly, with licensing in progress and a draft Environmental Impact Study ('EIS') submitted for regulatory and public review in October 2022 .

Denison's interests in Saskatchewan also include a 22.5% ownership interest in the McClean Lake Joint Venture ('MLJV'), which includes unmined uranium deposits (planned 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 agreement), plus a 25.17% interest in the Midwest Joint Venture ('MWJV')'s Midwest Main and Midwest A deposits, and a 69.44% interest in the Tthe Heldeth Túé ('THT') and Huskie deposits on the Waterbury Lake Property ('Waterbury'). The Midwest Main, Midwest A, THT and Huskie deposits are located within 20 kilometres of the McClean Lake mill. Taken together, the Company 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 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%).

Technical Disclosure and Qualified Person

The technical information contained in this press release has been reviewed and approved by Chad Sorba , P.Geo., Denison's Vice President Technical Services & Project Evaluation, and Andy Yackulic , P.Geo., Denison's Vice President Exploration, who are both Qualified Persons in accordance with the requirements of NI 43-101.

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 '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 pertaining to the following: projections with respect to exploration, development and expansion plans and objectives, including the scope, objectives and interpretations of FS, PFS and the Wheeler River technical de-risking process for the proposed ISR operation for the Phoenix deposit; expectations with respect to the EA, EIS and licensing and permitting for proposed operations at Wheeler River; expectations regarding the restart of mining operations at McClean Lake; expectations regarding the assessment of the amenability of ISR for THT and Midwest deposits; expectations regarding the performance of the uranium market and global sentiment regarding nuclear energy; expectations regarding Denison's joint venture ownership interests; and expectations regarding the objectives and continuity of its agreements with third parties. Statements relating to 'mineral reserves' or 'mineral resources' are deemed to be forward-looking information, as they involve the implied assessment, based on certain estimates and assumptions that the mineral reserves and mineral resources described can be profitably produced in the future.

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 the FS and PFS may not be maintained after further testing or be representative of actual conditions within the applicable deposits. In addition, Denison may decide or otherwise be required to discontinue testing, evaluation, engineering, and development work if it is unable to maintain or otherwise secure the necessary approvals or resources (such as testing facilities, capital funding, 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 the Company's Annual Information Form dated March 28, 2024 under the heading 'Risk Factors'. 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.

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SOURCE Denison Mines Corp.

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Denison Mines DML:CA DNN Uranium Investing

DML:CA,DNN

Denison Announces Completion of Conceptual Mining Study Evaluating ISR for Midwest and Plans to Advance Efforts in 2023

Denison Mines Corp. ("Denison" or the "Company") (TSX: DML) (NYSE American: DNN) is pleased to announce the successful completion of an internal conceptual mining study (the "Concept Study") examining the potential application of the In-Situ Recovery ("ISR") mining method at the Company's 25.17% owned Midwest project ("Midwest"). The Concept Study was prepared by Denison during 2022 and was formally issued to the Midwest Joint Venture ("MWJV") in early 2023. Based on the positive results of the Concept Study, the MWJV has now provided Denison with approval to complete additional ISR-related evaluation work for Midwest in 2023. View PDF version .

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NexGen Achieves Major Permitting Milestone

The Canadian Nuclear Safety Commission ("CNSC") has notified NexGen of successful completion of final Federal technical review.
This is the key requirement to scheduling a Federal Commission Hearing date and subsequent Federal Project approval decision.
The Federal Environmental Assessment ("EA") and License represent the final major approval steps after having received Provincial EA approval in November 2023 .
In production, the Rook I Project is poised to make NexGen one of the world's largest and most environmentally conscious mining companies.

NexGen Energy Ltd. ("NexGen" or the "Company") (TSX: NXE) (NYSE: NXE) (ASX: NXG) is excited and proud to announce a major milestone in the Federal EA process for its 100%owned Rook I Project ("the Project"). The CNSC has provided NexGen formal confirmation that the Company has successfully addressed all information requests received as part of the Federal technical review. With completion of the CNSC technical review, the next and final steps in the Federal approval process include scheduling a Commission Hearing Date for the Project, subject to which the CNSC will render an approval decision on the Project.

This historic milestone marks a crucial step forward for the Project that has been undergoing Canada's robust and rigorous regulatory process since 2019. Completion of the Federal EA technical review stage follows the CNSC having deemed NexGen's Federal licence application sufficient in September 2023 , and receipt of Provincial EA approval in November 2023 . This development reinforces Canada's path to re-establish itself as the leader in global uranium supply and partner of choice.

Leigh Curyer, Chief Executive Officer, commented: "This exciting outcome is a testament to the exceptional efforts of our entire NexGen team, the collaborative support of our valued Indigenous Nation partners, and our transparent approach with the CNSC to ensure a robust and thorough review that meets the highest standards of environmental protection for the sustainable development of the Rook I Project. Since inception, our honest and innovative holistic approach to the successful development of this generational project has set new industry standards as to what is possible, whilst positively impacting all our valued stakeholders.

Together with the Clearwater River Dene Nation, Métis Nation – Saskatchewan Northern Region 2 and Métis Nation – Saskatchewan , Buffalo River Dene Nation, and Birch Narrows Dene Nation, we are construction ready to deliver transformative and unprecedented social, economic and environmental benefits to local communities, the Province of Saskatchewan, Canada , and the world.

We're not just developing a mine - we're building strong communities while shaping a sustainable and secure global energy future. With over $800 million in cash and liquid assets, we are ready pending a positive Commission decision with all activities required to immediately commence major site works in place."

NexGen is poised to propel Canada back to the forefront of global clean energy fuel production. The Rook I Project embodies NexGen's commitment to elite environmental performance, unprecedented community inclusion, and responsible alignment with global net-zero goals.

About NexGen

NexGen Energy is a Canadian company focused on delivering clean energy fuel for the future. The Company's flagship Rook I Project is being optimally developed into the largest, low-cost producing uranium mine globally, incorporating the most elite standards in environmental and social governance. The Rook I Project is supported by a NI 43-101 compliant Feasibility Study which outlines the elite environmental performance and industry leading economics. NexGen is led by a team of experienced uranium and mining industry professionals with expertise across the entire mining life cycle, including exploration, financing, project engineering and construction, operations, and closure. NexGen is leveraging its proven experience to deliver a Project that leads the entire mining industry socially, technically, and environmentally. The Project and prospective portfolio in northern Saskatchewan will provide generational long-term economic, environmental, and social benefits for Saskatchewan, Canada , and the world.

NexGen is listed on the Toronto Stock Exchange and the New York Stock Exchange under the ticker symbol "NXE," and on the Australian Securities Exchange under the ticker symbol "NXG," providing access to global investors to participate in NexGen's mission of solving three major global challenges in decarbonization, energy security, and access to power. The Company is headquartered in Vancouver, British Columbia , with its primary operations office in Saskatoon , Saskatchewan.

Cautionary Note to U.S. Investors

This news release includes Mineral Reserves and Mineral Resources classification terms that comply with reporting standards in Canada and the Mineral Reserves and the Mineral Resources estimates are made in accordance with NI 43-101. NI 43-101 is a rule developed by the Canadian Securities Administrators that establishes standards for all public disclosure an issuer makes of scientific and technical information concerning mineral projects. These standards differ from the requirements of the Securities and Exchange Commission ("SEC") set by the SEC's rules that are applicable to domestic United States reporting companies. Consequently, Mineral Reserves and Mineral Resources information included in this news release is not comparable to similar information that would generally be disclosed by domestic U.S. reporting companies subject to the reporting and disclosure requirements of the SEC Accordingly, information concerning mineral deposits set forth herein may not be comparable with information made public by companies that report in accordance with U.S. standards.

Forward-Looking Information

The information contained herein contains "forward-looking statements" within the meaning of applicable United States securities laws and regulations and "forward-looking information" within the meaning of applicable Canadian securities legislation. "Forward-looking information" includes, but is not limited to, statements with respect to estimates for CapEx, OpEx and a payback period of 12 months, the appointment of a lead lender group, the availability of financing for the Project, the advancement of detailed engineering and contract negotiations, bolstering the globe's uranium supply chains to meet the rising demand for nuclear energy, the timing and cost of reclamation, including as part of the UGTMF and after-tax free cash flow remaining materially consistent with the FS, Free Cash Flow, Payback Period and IRR relative to various uranium prices, the delivery of clean energy fuel for the future, the development of the largest low cost producing uranium mine globally and incorporating elite standards in environmental and social governance, delivering a project that leads the entire mining industry socially, technically and environmentally, providing generational long-term economic, environmental and social benefits for Saskatchewan, Canada and the world, planned exploration and development activities and budgets, the interpretation of drill results and other geological information, mineral reserve and resource estimates (to the extent they involve estimates of the mineralization that will be encountered if a project is developed), requirements for additional capital, capital costs, operating costs, cash flow estimates, production estimates, the future price of uranium and similar statements relating to the economics of a project, including the Rook I Project. Generally, forward-looking information and statements can be identified by the use of forward-looking terminology such as "plans", "expects", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", or "believes" or the negative connotation thereof 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" or the negative connotation thereof.

Forward-looking information and statements are based on NexGen's current expectations, beliefs, assumptions, estimates and forecasts about its business and the industry and markets in which it operates. Forward-looking information and statements are made based upon numerous assumptions, including, among others, that financing for the Project will be available in a timely manner and on terms acceptable to the Company, the results of planned exploration and development activities will be as anticipated and on time; the price of uranium; the cost of planned exploration and development activities; that, as plans continue to be refined for the development of the Rook I Project, there will be no changes in costs, engineering details or specifications that would materially adversely affect its viability; that financing will be available if and when needed and on reasonable terms; that third-party contractors, equipment, supplies and governmental and other approvals required to conduct NexGen's planned exploration and development activities will be available on reasonable terms and in a timely manner; that there will be no revocation of government approvals; that general business, economic, competitive, social and political conditions will not change in a material adverse manner; the assumptions underlying the Company's mineral reserve and resource estimates and updated/revised CapEx, OpEx, SusEx, and pay back period; assumptions made in the interpretation of drill results and other geological information; the ability to achieve production on the Rook I Project; and other estimates, assumptions and forecasts disclosed in the Feasibility Study for the Rook I Project. Although the assumptions made by the Company in providing forward-looking information or making forward-looking statements were considered reasonable by management at the time they were made, there can be no assurance that such assumptions will prove to be accurate.

Forward-looking information and statements also involve known and unknown risks and uncertainties and other factors, which may cause actual results, performances and achievements of NexGen to differ materially from any projections of results, performances and achievements of NexGen expressed or implied by such forward-looking information or statements, including, among others, negative operating cash flow and dependence on third-party financing, uncertainty of additional financing, the risk that pending assay results will not confirm previously announced preliminary results, the imprecision of mineral reserve and resource estimates, the price and appeal of alternate sources of energy, sustained low uranium prices, aboriginal title and consultation issues, development risks, climate change, uninsurable risks, reliance upon key management and other personnel, risks related to title to its properties, information security and cyber threats, failure to manage conflicts of interest, failure to obtain or maintain required permits and licences, changes in laws, regulations and policy, competition for resources, political and regulatory risks, general inflationary pressures, industry and economic factors that may affect the business, and other factors discussed or referred to in the Company's most recent Annual Information Form under "Risk Factors" and management's discussion and analysis under "Other Risks Factors" filed on SEDAR+ at www.sedarplus.ca and 40-F filed on Edgar at www.sec.gov .

Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in the forward-looking information or statements or implied by forward-looking information or statements, there may be other factors that cause results not to be as anticipated, estimated or intended.

There can be no assurance that forward-looking information and statements will prove to be accurate, as actual results and future events could differ materially from those anticipated, estimated or intended. Accordingly, readers are cautioned not to place undue reliance on forward-looking information or statements due to the inherent uncertainty thereof. The Company undertakes no obligation to update or reissue forward-looking information as a result of new information or events except as required by applicable securities laws.

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SOURCE NexGen Energy Ltd.

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Foremost Clean Energy Announces Strategic Engagement with Red Cloud Financial Services

Foremost Clean Energy Ltd. ( NASDAQ: FMST ) ( CSE: FAT ) (" Foremost " or the " Company "), an emerging North American uranium and lithium exploration company, is pleased to announce today that it has entered into a strategic agreement (the " Agreement ") with Red Cloud Financial Services Inc. (" RCFS" or " Red Cloud "), an arms-length independent contractor, to provide promotional services, including advice on marketing, communications and social media activities. Under the engagement, Red Cloud will be paid a fee of $10,000 per month effective October 14, 2024, for a twelve-month term which automatically renews month-to-month thereafter unless either party provides written notice of termination to the other party thirty (30) days prior to the date of termination.

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US Plans to Triple Nuclear Power Capacity by 2050

The Biden administration has announced a strategic roadmap to significantly expand the United States' nuclear energy capacity, setting a target to triple capacity by 2050.

In a new nine pillar framework, the Biden-Harris administration has laid out its plans to add 200 gigawatts (GW) of new nuclear energy through new reactor builds, reactivations and upgrades to existing facilities.

The initiative seeks to meet a growing demand for reliable, carbon-free power as the nation transitions away from fossil fuels and toward cleaner energy sources.

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Paladin Cuts Uranium Production Forecast, Share Price Declines

Shares of Paladin Energy (ASX:PDN,OTCQX:PALAF) declined this week after the company shared an update on its Langer Heinrich mine and revised its 2025 fiscal year production guidance.

The company now expects the mine to produce 3 million to 3.6 million pounds of U3O8, lower than its earlier prediction of 4 million to 4.5 million pounds. According to Paladin, the drop is the result of lower-than-expected output in October, which was caused by water supply disruptions, as well as continued variability in stockpiled ore.

Production from Langer Heinrich amounted to 186,667 pounds during the month.

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