Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

DML.TO ·

Denison Announces Results of Shareholder Meeting & Appointment of Jennifer Traub as Board Chair

Management Changes Shareholder Meetings

1

Denison Mines Corp.

1100 – 40 University Ave

Toronto, ON M5J 1T1

www.denisonmines.com

PRESS RELEASE

Denison Announces Results of Shareholder Meeting

& Appointment of Jennifer Traub as Board Chair

Toronto, ON – May 9, 2024. Denison Mines Corp. (‘Denison’ or the ‘Company’) (TSX: DML, NYSE

American: DNN) is pleased to report that the nominees listed in the management proxy circular dated March

28, 2024 (the “Circular”) for the A nnual General Meeting of Sharehol ders held in Toronto today (the

“Meeting”) were elected as directors of the Company.

David Cates, Director, President and CEO of Denison commented, “The Board and management of

Denison extend their sincere gratitude to Mr. Ron Hochstein, who did not stand for re-election at

the Meeting, for nearly 25-years of service on the Board since his appointment in 2000. As Director,

Board Chair, and the Company’s previous CEO, R on made countless invaluable contributions to

the strategic direction of the Company and devel opment of several members of the management

team. Under Ron’s oversight as Board Chair, Denison has emerged from an extended period of

challenging uranium markets with an incredibly exciting Saskatchewan-based project portfolio and

a team motivated to deliver on the development of the Company’s flagship Phoenix deposit. Ron

continues to have a significant ownership position in the Company and has graciously agreed to

serve the Company as an advisor to the Board in support of our efforts to develop Phoenix.

On behalf of the Board, I’m also pleased to announce the appointment of Ms. Jennifer Traub as the

Company’s new Board Chair. Jennifer is a partne r 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. Jennifer joined the Denison Board in 2021, contributing her dynamic

advisory and leadership experience to Denison’s governance, and the Board and management are

pleased she has agreed to this expanded role.”

All other items of business presented to its shareholders at the Meeting, as more particularly described in

the Circular, were approved. Detail ed results of the vote by proxy for the election of directors are set out

below.

Nominee Votes For % For Votes Withheld % Withheld

David Cates 384,833,396 99.58% 1,619,036 0.42%

Brian Edgar 383,841,473 99.32% 2,610,960 0.68%

Jong Ho Hong 385,348,85 2 99.71% 1,103,581 0.29%

David Neuburger 382,086,81 7 98.87% 4,365,616 1.13%

Laurie Sterritt 381,856,13 1 98.81% 4,596,301 1.19%

Jennifer Traub 371,577,66 6 96.15% 14,874,765 3.85%

Patricia Volker 381,607, 250 98.75% 4,845,181 1.25%

The Company has provided more details on the results of all matters considered at the Meeting in its Report

of Voting Results which has been filed under its pr ofile on SEDAR+ at www.sedarplus.ca and on EDGAR

at www.sec.gov/edgar.

About Denison

Denison Mines Corp. was formed under the laws of On tario 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’.

2

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 Feasibility Study was completed for the P hoenix deposit as an ISR mining operation, and an

update to the previously prepared 2018 Pre-Feasibility Study 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 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’s Midwest Main and Midwest A deposits, and a 69.35% 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, the

Company has direct ownership interests in properties covering ~384,000 hectares in the Athabasca Basin

region.

Additionally, through its 50% ownership of JCU (Cana da) 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 is celebrating 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 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 identif ied by the use of forward-looking termi nology 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 news release c ontains forward-looking information pertaini ng to the following: Denison’s expectations with

respect to the Wheeler River project; the composition of the Denison Board; expectations regarding Denison’s joint venture ownership

interests and the 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. 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 resu lts may differ materially from those anticipated in this for ward

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, 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 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 rel ease to conform such information to actual results or to changes in

Denison's expectations except as otherwise required by applicable legislation.