Denison Mines Corp.  (TSX: DML) (NYSE American: DNN) is pleased to announce that it has closed its previously announced bought deal public offering of units.  The Company issued 78,430,000 units of the Company at US$1.10 per unit for aggregate gross proceeds of US$86,273,000, which included 10,230,000 units through the full exercise of the underwriters’ over-allotment option.

Each unit consists of one common share and one-half of one transferable common share purchase warrant of the Company.  Each full warrant is exercisable to acquire one Company common share at an exercise price of US$2.25 for 24 months after issuance. The warrants are not listed.

The Offering was completed through a syndicate of underwriters co-led by Cantor Fitzgerald Canada Corporation, as sole-bookrunner, and Haywood Securities Inc., and including Scotia Capital Inc., Canaccord Genuity Corp., TD Securities Inc., BMO Nesbitt Burns Inc., Cormark Securities Inc., Raymond James Ltd. and Paradigm Capital Inc.

Net proceeds of the Offering are anticipated to be used to fund the strategic purchase of uranium concentrates (“U₃O₈“) to be held by Denison as a long-term investment, intended to support the potential future financing of the advancement and/or construction of the Company’s flagship 90% owned Wheeler River Uranium Project (“Wheeler River”). Uranium purchases are planned to be made in the uranium spot market, with a target of accumulating approximately 2.5 million pounds of U₃O₈.

The Offering was made by way of a prospectus supplement dated March 16, 2021 to the Company’s existing Canadian short form base shelf prospectus dated June 2, 2020. The Prospectus Supplement has been filed with the securities commissions in each of the provinces and territories of Canada, except Quebec and is available on the SEDAR website maintained by the Canadian Securities Administrators at www.sedar.com.

This press release does not constitute an offer to sell or the solicitation of an offer to buy securities, nor will there be any sale of the securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such jurisdiction. The securities offered have not been approved or disapproved by any regulatory authority, nor has any such authority passed upon by the accuracy or adequacy of the Prospectus Supplement or the Base Shelf Prospectus.

This press release does not constitute an offer to sell or a solicitation of an offer to buy any of the securities in the United States. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended (the “U.S. Securities Act”), or any state securities laws and may not be offered or sold within the United States or to or for the account or benefit of a U.S. person (as defined in Regulation S under the U.S. Securities Act) unless registered under the U.S. Securities Act and applicable state securities laws or an exemption from such registration is available.

About Denison

Denison is a uranium exploration and development company with interests focused in the Athabasca Basin region of northern Saskatchewan, Canada. The Company’s flagship project is the 90% owned 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. Denison’s interests in Saskatchewan also include a 22.5% ownership interest in the McClean Lake joint venture, which includes several uranium deposits and the McClean Lake uranium mill, contracted to process the ore from the Cigar Lake mine under a toll milling agreement, plus a 25.17% interest in the Midwest and Midwest A deposits, and a 66.90% interest in the Tthe Heldeth Túé (“THT,” formerly J Zone) and Huskie deposits on the Waterbury Lake property. Each of Midwest, Midwest A, THT and Huskie are located within 20 kilometres of the McClean Lake mill.

Denison is engaged in mine decommissioning and environmental services through its Closed Mines group (formerly Denison Environmental Services), which manages Denison’s Elliot Lake reclamation projects and provides post-closure mine care and maintenance services to a variety of industry and government clients.

Denison is also the manager of Uranium Participation Corporation, a publicly traded company listed on the TSX under the symbol ‘U’, which invests in uranium oxide in concentrates (‘U₃O₈‘) and uranium hexafluoride (‘UF₆‘).