<SEC-DOCUMENT>0001654954-24-003718.txt : 20240327
<SEC-HEADER>0001654954-24-003718.hdr.sgml : 20240327
<ACCEPTANCE-DATETIME>20240327131747
ACCESSION NUMBER:		0001654954-24-003718
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20240327
FILED AS OF DATE:		20240327
DATE AS OF CHANGE:		20240327

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DENISON MINES CORP.
		CENTRAL INDEX KEY:			0001063259
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS METAL ORES [1090]
		ORGANIZATION NAME:           	01 Energy & Transportation
		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:		24788273

	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 MARCH 27, 2024
<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: March 27, 2024</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>
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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>
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<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>
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</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>
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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;">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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<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>
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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; 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> March
27, 2024</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 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>
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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 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>
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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;">Description</font></div>
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<div style="text-align: center">99.1</div>
</td>
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<div><font>&#xA0;</font></div>
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<td><a href="dmc-pr20240327sustainable.htm"><font style="text-decoration: underline;">Press release dated March 27,
2024</font></a></td>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>dmc-pr20240327sustainable.htm
<DESCRIPTION>PRESS RELEASE DATED MARCH 27, 2024
<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>
</div>
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<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>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
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<font style="color: rgb(0, 0, 0); font-size: 16px; font-family: Arial;">
</font><font style="color: rgb(0, 0, 0); font-size: 16px; font-family: Arial; font-weight: bold;">Denison
Announces Signing of</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold"><font style="font-size: 16px; font-family: Arial;">Sustainable Communities
Investment Agreement</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; March 27, 2024.</font>
<font style="color: #000000">Denison Mines Corp.
(&#x201C;Denison&#x201D;) (TSX: DML; NYSE American: DNN) is proud to
announce the signing of a Sustainable Communities Investment
Agreement (the &#x201C;Agreement&#x201D;) with the municipalities of
the Northern Village of Beauval, the Northern Village of
&#xCE;le-&#xE0;-la Crosse, the Northern Hamlet of Jans Bay, and the
Northern Hamlet of Cole Bay (the
&#x201C;Communities&#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="color: #000000; font-family: Arial; font-size: 12px">The
Agreement acknowledges that the municipalities are located in
northern Saskatchewan and have a desire to work together to develop
a regional approach that enables social, economic and cultural
revitalization. Denison is focused on developing its flagship
Wheeler River project (the &#x201C;Project&#x201D;) in a sustainable
manner that (i) supports Community-led objectives and initiatives
and (ii) empowers the Communities to develop their capacity to take
advantage of development opportunities and create a positive legacy
beyond the lifespan of the Project.</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-family: Arial; font-size: 12px"><font style="color: #000000">Mayor of Beauval, Nick Daigneault, stated,</font>
<font style="font-weight: bold; color: #000000">&#x201C;</font><font style="font-weight: bold; font-style: italic; color: #000000">The
Communities are very excited to enter into the Agreement with
Denison, who fully understands our need to sustain our
municipalities in Northern Saskatchewan for many years to come.
Each of our communities have limited pools of money to tap into and
there is only so much tax revenue our communities can garner to
tackle both the communities&#x2019; aging infrastructure as well as
important community needs. By partnering with industry, our
communities will be able to develop an additional fund that will
grow over time and provide us with much needed financial support to
see community projects become a reality. Denison has stepped-up to
support our communities and I&#x2019;m hopeful that the Agreement
will lead the way as a shining example of how industry can work
with our Northern Saskatchewan municipalities. We are grateful for
the discussions we have had with Denison&#x2019;s leadership team
and the fact that they share, and are excited about, our vision for
prosperous and sustainable communities.</font><font style="font-weight: bold; color: #000000">&#x201D;</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="font-family: Arial; font-size: 12px"><font style="color: #000000">David Cates, President &amp; CEO of Denison,
further added,</font> <font style="font-weight: bold; color: #000000">&#x201C;</font><font style="font-weight: bold; font-style: italic; color: #000000">This
Agreement builds upon a foundation of trust and respect established
between Denison and the municipalities of Beauval and
&#xCE;le-&#xE0;-la Crosse with the signing of a Memorandum of
Understanding in 2018 and 2017, respectively. As Wheeler River has
progressed over the last several years, we have listened to,
understood, and responded to the interests of the Communities. This
Agreement uniquely reflects the Communities&#x2019; own vision for
industry to support a positive legacy of sustainable northern
communities. We thank the Communities&#x2019; leaders and
constituents for their support and trust in Denison, and we look
forward to a long and mutually beneficial
relationship</font><font style="font-weight: bold; color: #000000">.&#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="color: #000000; font-family: Arial; font-size: 12px">The
Agreement with the Communities establishes commitments for funding
to support community development initiatives, with consideration
towards contributing to the current and future economic prosperity
and sustainability of the Communities by promoting economic
development and investments in capital projects, job creation and
training, housing, education, and other initiatives. The parties to
the Agreement also acknowledge a common goal of facilitating
qualified businesses and workers in benefitting from opportunities
associated with the Project.</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="color: #000000; font-family: Arial; font-size: 12px">In
consideration for contributions to the Communities&#x2019;
initiatives, the Communities have provided their consent and
support for the Project and have committed, amongst other things,
to support all regulatory approvals issued for the Project related
to exploration, evaluation, development, operation, reclamation,
and closure activities.</font></div>
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<font style="font-weight: bold; font-style: italic; font-family: Arial; font-size: 12px">
About the Municipalities of Beauval, &#xCE;le-&#xE0;-la Crosse,
Cole Bay, Jans Bay</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">
The Municipality of Beauval - &#x201C;Beautiful Valley&#x201D; - is
located in Northern Saskatchewan overlooking the lovely Beaver
River Valley providing a striking view of the river and surrounding
nature. The Beaver River offers world-class pickerel fishing, and
nearby lakes stocked with abundant Trout and Northern Pike makes
Beauval an ideal destination for anglers. The community has a proud
history of culture, language, and heritage. In history, Beauval was
a trading post location along the Churchill River trade route for
the Hudson&#x2019;s Bay Company, this route is still travelled via
canoe by history buffs and avid outdoors people for the pristine
scenes and memorable nature experience with historic
influence.</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">
The Northern Village of &#xCE;le-&#xE0;-la Crosse is located in
north-central Saskatchewan at the base of a peninsula extending
into Lac &#xCE;le-&#xE0;-la Crosse. The village is the second
oldest community in northern Saskatchewan, established in 1776. In
1846, Roman Catholic Missionaries arrived and constructed the
Chateau St. Jean Mission and a neighbouring school. The Sisters of
Charity of the Roman Catholic Church was initiated soon after and
still plays a prominent role within the community. This community
is the birthplace of Louis Riel Sr. and was home to Sister Margaret
Riel, sister of Louis Riel. The Village has a population of 1,425
(2021 Census) and prominent Aboriginal architect Douglas Cardinal
designed Rossignol Elementary School.</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">
The Northern Hamlet of Jans Bay is located in northwest
Saskatchewan along the southeast shore of Canoe Lake. Situated west
of Beauval on Hwy 965, the community is within close proximity to
its sister communities of Cole Bay and Canoe Narrows. This friendly
community is surrounded by forest, lakes, and
wildlife.</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">
The Northern Hamlet of Cole Bay is located 60 km west of Beauval on
the southwest shore of Canoe Lake at the junction of Highway 903
and 965, and is within close proximity to Jans Bay and Canoe
Narrows.</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
(&#x201C;JCU&#x201D;, 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
(&#x201C;ISR&#x201D;) 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&#x2019;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 Denison&#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 69.35% interest in the Tthe Heldeth
T&#xFA;&#xE9; (&#x201C;THT&#x201D;) 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 ~385,000 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: Arial; font-size: 12px;">&#xA0;</font></div>
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<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>
<table cellpadding="0" cellspacing="0" style="width: 100%; font-family: Times New Roman; font-size: 13px">
<tr>
<td style="vertical-align: top; width: 55%">
<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: 45%">
<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: 55%">
<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: 45%">
<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 55%">
<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
<td style="vertical-align: top; width: 45%">
<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 55%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px">Geoff
Smith</font></div>
</td>
<td style="vertical-align: top; width: 45%">
<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. 358</font></div>
</td>
</tr><tr>
<td style="vertical-align: top; width: 55%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 12px">Vice President
Corporate Development &amp; Commercial</font></div>
</td>
<td style="vertical-align: top; width: 45%">
<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
</tr><tr>
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<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
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<div><font style="font-family: Arial; font-size: 13px">&#xA0;</font></div>
</td>
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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">Follow Denison on
Twitter</font></div>
</td>
<td style="vertical-align: top; width: 45%">
<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>
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<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>
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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.
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-style: italic; font-family: Arial; font-size: 11px">
In particular, this press release contains forward-looking
information pertaining to Denison&#x2019;s current intentions and
objectives with respect to, and commitments set forth in, the
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 for the Project; 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>
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<font style="font-style: italic; font-family: Arial; font-size: 11px">
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 any one of the Communities 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 Management&#x2019;s
Discussion &amp; Analysis dated February 29, 2024 available under
its profile at www.sedarplus.ca and under Form 6-K available at
www.sec.gov/edgar.shtml. These factors are not, and should not be
construed as, being exhaustive.</font></div>
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<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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