<SEC-DOCUMENT>0001654954-23-012281.txt : 20230927
<SEC-HEADER>0001654954-23-012281.hdr.sgml : 20230927
<ACCEPTANCE-DATETIME>20230927095239
ACCESSION NUMBER:		0001654954-23-012281
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20230927
FILED AS OF DATE:		20230927
DATE AS OF CHANGE:		20230927

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DENISON MINES CORP.
		CENTRAL INDEX KEY:			0001063259
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS METAL ORES [1090]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33414
		FILM NUMBER:		231282184

	BUSINESS ADDRESS:	
		STREET 1:		40 UNIVERSITY AVE., SUITE 1100
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 1T1
		BUSINESS PHONE:		(416) 979-1991

	MAIL ADDRESS:	
		STREET 1:		40 UNIVERSITY AVE., SUITE 1100
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 1T1

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTERNATIONAL URANIUM CORP
		DATE OF NAME CHANGE:	19980603
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>form6-k.htm
<DESCRIPTION>FORM 6-K DATED SEPTEMBER 27, 2023
<TEXT>
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<div style="text-align: center; text-indent: 0px; padding-top: 5.3px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 24px; font-weight: bold;">UNITED STATES</font></div>
<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 24px; font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</font></div>
<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">Washington, D.C. 20549</font></div>
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<div style="text-align: center; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 24px; font-weight: bold;">FORM 6-K</font></div>
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<br>
<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE
13a-16 OR 15d-16</font></div>
<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">UNDER THE SECURITIES EXCHANGE ACT OF 1934</font></div>
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<div style="text-align: center; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">Date: September 27, 2023</font></div>
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<div style="text-align: center; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">Commission File Number:</font> <font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">001-33414</font></div>
<div style="text-align: center; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
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<div style="text-align: center; text-indent: 0px; padding-bottom: 2.7px; margin-right: 0px; margin-left: 0px; line-height: 1;"><font style="font-family: Times New Roman; font-size: 13px;"><font style="font-family: Times New Roman; font-size: 32px; font-weight: bold;">Denison Mines Corp.</font>&#xA0;<br></font></div>
<div style="text-align: left; width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;"><!--Rule Below Paragraph--></div>
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registrant)</font></font></div>
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<div style="text-align: left; width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;"><!--Rule Below Paragraph--></div>
<div style="text-align: justify; text-indent: 0px; margin-right: 0px; margin-left: 0px; line-height: 1; padding-top: 8px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px; line-height: 1; padding-top: 8px;"><font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">1100-40 University Avenue</font> <font style="font-family: Times New Roman; font-size: 13px;"><br>
</font></div>
<div style="text-align: center; text-indent: 0px; padding-top: 8px; margin-right: 0px; margin-left: 0px; line-height: 1;"><font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">Toronto Ontario</font></div>
<div style="text-align: center; text-indent: 0px; padding-top: 8px; margin-right: 0px; margin-left: 0px; line-height: 1;"><font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">&#xA0;M5J 1T1 Canada</font> <font style="font-family: Times New Roman; font-size: 13px;"><br>
</font></div>
<div style="text-align: center; text-indent: 0px; padding-bottom: 2.7px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
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<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;<font style="font-style: italic">(Address of
principal executive offices)</font></font></div>
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<div style="text-align: left; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;Indicate by check mark whether the registrant files
or will file annual reports under cover Form 20-F or Form
40-F.</font></div>
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<div style="text-align: center; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">Form
20-F&#xA0;&#xA0;&#x2610;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;Form&#xA0;&#xA0;&#xA0;&#xA0;40-F&#xA0;&#xA0;&#xA0;&#x2612;</font></div>
<div style="text-align: justify; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
<div style="text-align: left; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">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):&#xA0;&#xA0;&#x2610;</font></div>
<div style="text-align: left; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">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):&#xA0;&#xA0;&#x2610;</font></div>
<div style="text-align: justify; text-indent: 0px; margin-right: 0px; margin-left: 0px;"></div>
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<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"> <font style="font-family: Times New Roman; font-size: 13px; font-weight: bold;">SIGNATURES<br></font></div>
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<div style="text-align: left; text-indent: 0px; padding-top: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">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.</font></div>
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<td colspan="3" style="width: 48%; vertical-align: top;">
<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-weight: bold">DENISON MINES
CORP.</font><br></div>
</td>
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<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
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<td style="width: 47%; vertical-align: top;">
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<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td colspan="3" style="width: 48%; vertical-align: top; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 2px; border-bottom-style: solid;">
<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px; font-style: italic;">/s/ Amanda Willett</font></div>
</td>
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<td style="width: 47%; vertical-align: top;">
<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">Date<font style="font-weight: bold;">:&#xA0;</font>
September 27, 2023</font></div>
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<td style="width: 1%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
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<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">Amanda
Willett</font></div>
</td>
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<td style="width: 47%; vertical-align: top;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
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<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
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<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">Vice
President Legal and Corporate Secretary</font></div>
</td>
</tr></table>
</div>
<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
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<div id="hdr">
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</div>
<div style="text-align: justify; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;"><font style="font-weight: bold;">FORM 6-K
EXHIBIT INDEX</font></font></div>
<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
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<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">Exhibit&#xA0;Number</font></div>
</td>
<td style="width: 5%; vertical-align: bottom;">
<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;&#xA0;</font></div>
</td>
<td style="width: 85%; vertical-align: bottom;">
<div style="text-align: left; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">Description</font></div>
</td>
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<div style="text-align: center"><font style="font-family: Times New Roman; font-size: 13px;"><br></font></div>
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<div style="text-align: center">99.1</div>
</td>
<td>
<div><font>&#xA0;</font></div>
</td>
<td><a href="a20230927-dmcprerfnshared.htm"><font style="text-decoration: underline;">Press release dated September 27,
2023</font></a><br></td>
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<div><font>&#xA0;</font></div>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a20230927-dmcprerfnshared.htm
<DESCRIPTION>PRESS RELEASE DATED SEPTEMBER 27, 2023
<TEXT>
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<font style="font-family: Arial; font-size: 11px;"><font style="font-weight: bold">Exhibit 99.1</font><br></font></div>
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 11px;">&#xA0;</font></div>
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<div><img src="denisonlogo-med.jpg"></div>
</td>
<td style="width: 50%">
<div><font>&#xA0;</font>
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 11px">Denison Mines
Corp.</font></div>
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 11px">1100 &#x2013; 40
University Ave</font></div>
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 11px">Toronto, ON M5J
1T1</font></div>
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Arial; font-size: 11px">www.denisonmines.com</font></div>
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-family: Arial; font-size: 11px">@DenisonMinesCo</font></div>
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</td>
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</div>
<br>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<font style="color: #000000; font-family: Arial; font-size: 13px">PRESS
RELEASE</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<font style="font-weight: bold"><font style="color: #000000; font-family: Arial; font-size: 16px">Denison
Announces Signing of Landmark Shared Prosperity Agreement with
English River First Nation</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px"><font style="font-weight: bold">Toronto, ON &#x2013; September 27, 2023.</font>
<font style="color: #000000">Denison Mines Corp.
(&#x201C;Denison&#x201D; or the &#x201C;Company&#x201D;) (TSX: DML;
NYSE American: DNN) is proud to announce the signing of a Shared
Prosperity Agreement (&#x201C;SPA&#x201D;) with English River First
Nation (&#x2018;ERFN&#x2019;) supporting the development and
operation of Denison&#x2019;s Wheeler River Project in northern
Saskatchewan (the &#x2018;Project&#x2019;). The SPA received support
from a substantial majority of ERFN Members who participated in a
ratification vote on its key terms.</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px"><a name="_Hlk146607356"><!--anchor--></a><font style="color: #000000">The signing of the SPA follows years of active
engagement, including a four-month-long ERFN-led community
consultation process ahead of the ratification vote, and represents
a significant milestone in the history of both Denison&#x2019;s
relationship with ERFN and the Project.</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px"><font style="color: #000000">The SPA acknowledges that the Project is located
within ERFN&#x2019;s Ancestral Lands and provides Denison with
ERFN&#x2019;s</font> consent to advance the Project. <font style="color: #000000">Additionally, the SPA outlines a shared
recognition that ERFN is the Knowledge Keeper of the culture, ways,
customs, and values of ERFN in relation to the environment and its
Members and reflects ERFN&#x2019;s desire to prioritize
sustainability. Amongst other key commitments, the SPA provides
ERFN and its Members with (i) an important role in environmental
monitoring and management, and (ii) benefits from community
investment, business opportunities, employment and training
opportunities, and financial compensation. Overall, the SPA
describes a mutual commitment to maintain an open, respectful, and
cooperative relationship between Denison and ERFN to ensure mutual
prosperity as the development and operation of the Project
progresses.</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px"><font style="color: #000000">Acting Chief Jenny Wolverine stated,</font>
<font style="font-weight: bold; font-style: italic; color: #000000">&#x201C;On
behalf of ERFN I would like to express my gratitude for the
patience, diligence, and perseverance shown by all participants
throughout the negotiation process. This agreement stands as a
testament to meaningful collaboration and mutual respect. We worked
hard to secure the best team to support ERFN through these
negotiations. This included strong legal counsel to negotiate the
agreement, scientists to help us understand the environmental
impacts, and consultants to review the impacts and benefits of the
Wheeler River project. Together we built a strong deal for the
Nation. We are confident that based on the size of the project and
current best practices we have one of the best agreements in the
entire country. As a Nation, we are now turning our attention to
building our capacity for employment and training, so we are ready
for the Wheeler River project and the full implementation of this
important partnership.&#x201D;</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px"><font style="color: #000000">Elder Isidore Campbell shared his pride in being a
part of the negotiating team,</font> <font style="font-weight: bold; font-style: italic; color: #000000">&#x201C;I
felt very comfortable with the process. As an Elder, it was
important to me that the entire process was honest. Denison has
accommodated us to our expectations. The agreement puts our Nation
in a good position; it&#x2019;s going to have a positive
impact.&#x201D;</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px"><font style="color: #000000">David Cates, President &amp; CEO of Denison,
stated</font> <font style="font-weight: bold; font-style: italic; color: #000000">&#x201C;Guided
by the principles of Denison&#x2019;s Indigenous Peoples Policy, we
sought to develop an agreement with ERFN that could meaningfully
contribute to advancing reconciliation with Indigenous peoples in
Canada. To achieve this, we listened to the interests of the Nation
and worked together to obtain a mutual appreciation of the impacts
and benefits of the Project. We are very pleased to have earned the
support of ERFN and to announce that we have reached an agreement
where ERFN consents to the advancement of the
Project.</font></font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<font style="color: #000000; font-weight: bold; font-style: italic; font-family: Arial; font-size: 12px">
We look forward to a long and mutually beneficial relationship with
ERFN and extend our sincere gratitude to the leadership of ERFN,
for their commitment to open dialogue and productive negotiations,
as well as the ERFN Members that were meaningfully involved in the
negotiation and ratification process.&#x201D;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-style: italic; font-family: Arial; font-size: 12px">
About ERFN</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 12px">
English River First Nation is located about 500 km north of
Saskatoon in Treaty 10, with two residential reserves located at
Wapatuanak and La Plonge. ERFN has nineteen different reserves,
which also include Porter Island, Cree Lake, Elak Dase, Knee Lake
and Dipper Rapids.</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 12px">
ERFN is a multilingual community with various combinations of Dene,
Cree, Michif, English and French spoken by almost 1,800 members.
The &#x201C;people of the river&#x201D; are known for their bold and
collaborative spirit and trusting and humble nature. They are
dedicated to stewardship of the land and the education of future
generations.</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 12px">
An industrious and entrepreneurial group, ERFN has led the way in
efficient economic relationship building through its support and
advancement of community development partnerships. These
relationships have been instrumental in advancing community support
and understanding across northern Saskatchewan.</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold"><font style="font-style: italic; color: #000000; font-family: Arial; font-size: 12px">
About Wheeler River</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 12px">
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 (10%).
In August 2023, Denison filed a technical report <font style="color: #000000">summarizing the results of (i) the feasibility
study completed for In-Situ Recovery (&#x2018;ISR&#x2019;) 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.</font> 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 Statement submitted
for regulatory and public review in October 2022. More information
is available in t<font style="color: #000000">he technical report
titled &#x201C;NI 43-101 Technical Report on the Wheeler River
Project Athabasca Basin, Saskatchewan, Canada&#x201D; dated August
8</font>, 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.shtml.</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold"><font style="font-style: italic; color: #000000; font-family: Arial; font-size: 12px">
About Denison</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 12px">
Denison is a uranium exploration and development company with
interests focused in the Athabasca Basin region of northern
Saskatchewan, Canada. In addition to the Company&#x2019;s effective
95% interest in its flagship Wheeler River Uranium Project,
Denison&#x2019;s interests in Saskatchewan include a 22.5% ownership
interest in the McClean Lake Joint Venture, which comprises several
uranium deposits and the McClean Lake uranium mill that is
contracted to process the ore from the Cigar Lake mine under a toll
milling agreement, plus a 25.17% interest in the Midwest Main and
Midwest A deposits and a 67.41% interest in the Tthe Heldeth
T&#xFA;&#xE9; (&#x2018;THT&#x2019;) 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.</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 12px">
Through its 50% ownership of 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%).</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 12px">
Denison&#x2019;s exploration portfolio includes further interests in
properties covering ~285,000 hectares in the Athabasca Basin
region.</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Arial; font-size: 12px">
For more information, please contact:</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div>
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<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px">David
Cates</font></div>
</td>
<td style="vertical-align: top; width: 50%">
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px">(416) 979-1991
ext. 362</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 50%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px">President and
Chief Executive Officer</font></div>
</td>
<td style="vertical-align: top; width: 50%">
<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
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<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
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</td>
</tr><tr>
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<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 50%">
<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 50%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px">Follow Denison on
Twitter</font></div>
</td>
<td style="vertical-align: top; width: 50%">
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px">@DenisonMinesCo</font></div>
</td>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold"><font style="color: #000000; font-family: Arial; font-size: 12px">Cautionary
Statement Regarding Forward-Looking Statements</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 11px">
Certain information contained in this press release constitutes
&#x201C;forward-looking information&#x201D;, within the meaning of
the United States Private Securities Litigation Reform Act of 1995
and similar Canadian legislation concerning the business,
operations and financial performance and condition of
Denison.</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 11px">
Generally, these forward-looking statements can be identified by
the use of forward-looking terminology such as &#x201C;plans&#x201D;,
&#x201C;expects&#x201D;, &#x201C;budget&#x201D;,
&#x201C;scheduled&#x201D;, &#x201C;estimates&#x201D;,
&#x201C;forecasts&#x201D;, &#x201C;intends&#x201D;,
&#x201C;anticipates&#x201D;, or &#x201C;believes&#x201D;, or the
negatives and / or variations of such words and phrases, or state
that certain actions, events or results &#x201C;may&#x201D;,
&#x201C;could&#x201D;, &#x201C;would&#x201D;, &#x201C;might&#x201D; or
&#x201C;will be taken&#x201D;, &#x201C;occur&#x201D;, &#x201C;be
achieved&#x201D; or &#x201C;has the potential to&#x201D;.</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 11px">
In particular, this press release contains forward-looking
information pertaining to the Company&#x2019;s current intentions
and objectives with respect to, and commitments set forth in, the
Shared Prosperity Agreement; the results of, and estimates,
assumptions and projections provided in, the technical report for
Wheeler River and the interpretations and expectations with respect
thereto; development and expansion plans and objectives; and
expectations regarding its joint venture ownership interests and
the continuity of its agreements with its partners and third
parties.</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 11px"><font style="font-style: italic">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, Denison may decide or
otherwise be required to discontinue work at the Project if it is
unable to maintain or otherwise secure the necessary resources
(such as capital funding, regulatory approvals, etc.) and this
could impact Denison&#x2019;s ability to meet the objectives stated
in this press release, or the objectives of Denison and ERFN could
become misaligned. Denison believes that the expectations reflected
in this forward-looking information are reasonable but there can be
no assurance that such statements will prove to be accurate and 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
&#x201C;Risk Factors&#x201D; in Denison&#x2019;s Annual Information
Form dated March 27, 2023 available under its profile at</font>
www.sedar.com <font style="font-style: italic">and its Form 40-F
available at</font> www.sec.gov/edgar.shtml<font style="font-style: italic">. These factors are not, and should not be
construed as, being exhaustive.</font></font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-style: italic; font-family: Arial; font-size: 11px">
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 its expectations except as otherwise
required by applicable legislation.</font></div>
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