<SEC-DOCUMENT>0001654954-19-013840.txt : 20191212
<SEC-HEADER>0001654954-19-013840.hdr.sgml : 20191212
<ACCEPTANCE-DATETIME>20191212112549
ACCESSION NUMBER:		0001654954-19-013840
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20191212
FILED AS OF DATE:		20191212
DATE AS OF CHANGE:		20191212

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:		191281359

	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>form6k.htm
<DESCRIPTION>FORM 6-K DATED DECEMBER 12, 2019
<TEXT>
<html>
<head>
<!-- Document created using Blueprint(R) - powered by Issuer Direct - www.issuerdirect.com -->
<!-- Copyright 2019 Issuer Direct Corporation -->
<title>Blueprint</title>
</head>
<body style="font-family: Times New Roman; font-size: 13px;">
<div id="pgbrk" style="width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;">
<div id="hdr">
<div style="text-align: left; width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</div>
</div>
<div style="text-align: center; width: 100%; height: 8px; margin-right: 0px; margin-bottom: 6px; margin-left: 0px; border-top-color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-top-width: 4px; border-bottom-width: 1px; border-top-style: solid; border-bottom-style: solid;"><!--style header-->
<br></div>
<div style="text-align: justify; 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>
<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>
<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>
<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>
<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;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</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: 24px; font-weight: bold;">FORM 6-K</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>
<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>
<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;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</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; font-weight: bold;">Report of Foreign Private Issuer</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;">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;">of the Securities Exchange Act of 1934</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: 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: December 12, 2019</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; font-weight: bold;">Commission File Number: 001-33414</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>
<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>
<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;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</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: 32px; font-weight: bold;">Denison Mines Corp.</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; font-weight: bold;">(Translation of registrant&#x2019;s name into
English)</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>
<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>
<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;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</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; font-weight: bold;">1100-40 University Avenue, Toronto Ontario, M5J 1T1
Canada</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;">(Address of principal executive offices)</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>
<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>
<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;"><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 whether the registrant files or will
file annual reports under cover Form 20-F or Form
40-F.</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: 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>
<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 id="pgbrk" style="width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;">
<div id="ftr">
<div style="text-align: left; width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</div>
<div id="pb" style="text-align: center; width: 100%; height: 1px; margin-right: 0px; margin-bottom: 6px; margin-left: 0px; page-break-after: always; background-color: rgb(0, 0, 0);"><!--page break--></div>
<div id="hdr">
<div style="text-align: left; width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</div>
</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-weight: bold;">Signatures</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;">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>
<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>
<div>
<table cellpadding="0" cellspacing="0" style="width: 100%; font-family: Times New Roman; font-size: 13px;">
<tr>
<td style="width: 47%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 1%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 4%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 0%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 0%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 1%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 47%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
</tr><tr>
<td style="width: 47%; vertical-align: top;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 1%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 4%; vertical-align: top;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 0%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<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-family: Times New Roman; font-size: 13px; font-weight: bold;">Denison Mines Corp.</font></div>
</td>
</tr><tr>
<td style="width: 47%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td colspan="2" style="width: 5%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td colspan="4" style="width: 48%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
</tr><tr>
<td style="width: 47%; vertical-align: top;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 1%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 4%; vertical-align: top;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 0%; vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 2px; border-bottom-style: solid;">
<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>
</tr><tr>
<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>
December 12, 2019</font></div>
</td>
<td style="width: 1%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 4%; vertical-align: top;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 0%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<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-family: Times New Roman; font-size: 13px;">Amanda
Willett</font></div>
</td>
</tr><tr>
<td style="width: 47%; vertical-align: top;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 1%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 4%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 0%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<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-family: Times New Roman; font-size: 13px;">Corporate Counsel 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>
<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 id="pgbrk" style="width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;">
<div id="ftr">
<div style="text-align: left; width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</div>
<div id="pb" style="text-align: center; width: 100%; height: 1px; margin-right: 0px; margin-bottom: 6px; margin-left: 0px; page-break-after: always; background-color: rgb(0, 0, 0);"><!--page break--></div>
<div id="hdr">
<div style="text-align: left; width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</div>
</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;">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>
<div style="text-align: left">
<table cellpadding="0" cellspacing="0" style="text-align: left; margin: 0px auto 0px 0px; width: 100%; font-family: Times New Roman; font-size: 13px;">
<tr>
<td style="width: 10%; vertical-align: bottom;">
<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>
</tr><tr>
<td style="width: 10%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td colspan="2" style="width: 90%; vertical-align: middle;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
</tr><tr>
<td style="width: 10%; vertical-align: top;">
<div style="text-align: center; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">99.1</font></div>
</td>
<td style="width: 5%; vertical-align: bottom;">
<div><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</td>
<td style="width: 85%; 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;"><a href="denison_-materialchangere.htm"><font style="text-decoration: underline;">Material Change Report dated November
20, 2019</font></a><br></font></div>
</td>
</tr></table>
</div>
<div style="text-align: justify; text-indent: 0px; padding-bottom: 16px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
<div id="pgbrk" style="width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;">
<div id="ftr">
<div style="text-align: left; width: 100%; text-indent: 0px; margin-right: 0px; margin-left: 0px;"><font style="font-family: Times New Roman; font-size: 13px;">&#xA0;</font></div>
</div>
<div id="pb" style="text-align: center; width: 100%; height: 1px; margin-right: 0px; margin-bottom: 6px; margin-left: 0px; background-color: rgb(0, 0, 0);"><!--page break--></div>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>denison_-materialchangere.htm
<DESCRIPTION>MATERIAL CHANGE REPORT DATED NOVEMBER 20, 2019
<TEXT>
<html>
<head>
<!-- Document created using Blueprint(R) - powered by Issuer Direct - www.issuerdirect.com -->
<!-- Copyright 2019 Issuer Direct Corporation -->
<title>Blueprint</title>
</head>
<body style="font-family: Times New Roman; font-size: 13px;">
<div id="pgbrk" style="width: 100%; margin-left: 0px; text-indent: 0px; margin-right: 0px">
<div id="hdr">
<div style="text-align: left; width: 100%; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
</div>
</div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Arial; font-size: 13px">
</font></div>
<div style="text-align: right; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px;"><font style="font-weight: bold">Exhibit 99.1</font><br></font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px;">&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-family: Arial; font-size: 13px">
FORM 51-102F3</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-weight: bold; font-style: italic; font-family: Arial; font-size: 13px">
MATERIAL CHANGE REPORT</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="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 144px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
1:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Name and
Address of Company</font></div>
</div>
</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: 96px">
<font style="font-family: Arial; font-size: 13px">Denison Mines
Corp. (&#x201C;<font style="font-weight: bold">Denison</font>&#x201D;
or the &#x201C;<font style="font-weight: bold">Company</font>&#x201D;)</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 96px">
<font style="font-family: Arial; font-size: 13px">1100 &#x2013; 40
University Avenue</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 96px">
<font style="font-family: Arial; font-size: 13px">Toronto, ON M5J
1T1</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="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 144px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
2:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Dates of
Material Change</font></div>
</div>
</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: 96px">
<font style="font-family: Arial; font-size: 13px">November 18,
2019</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="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 144px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
3:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">News
Release</font></div>
</div>
</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: 96px; margin-right: 1px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">A news release
announcing the material change was disseminated on November 18,
2019 through the facilities of CNW Group (Cision) and a copy has
been filed under Denison&#x2019;s profile on SEDAR.</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="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 144px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
4:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Summary of
Material Change</font></div>
</div>
</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: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">On November 18,
2019, Denison announced that it has entered into an agreement with
Cantor Fitzgerald Canada Corporation (&#x201C;<font style="font-weight: bold">Cantor</font>&#x201D;) as a sole bookrunner and
lead underwriter, on behalf of a syndicate of underwriters
(together, the "<font style="font-weight: bold">Underwriters</font>"), under which the
Underwriters have agreed to purchase, on a "bought deal" private
placement basis, 6,030,000 flow-through common shares (the
"<font style="font-weight: bold">Flow-Through Shares</font>") at a
price of CAD$0.68 per share, for total gross proceeds of
approximately CAD$4.1 million (the "<font style="font-weight: bold">Offering</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="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 144px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
5:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Full
Description of Material Change</font></div>
</div>
</div>
<div style="text-align: justify; margin-left: 96px; margin-right: 1px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px;">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 96px; margin-right: 1px; text-indent: 0px">
<font style="font-weight: bold; font-family: Arial; font-size: 13px">5.1 Full
Description of Material Change</font></div>
<div style="text-align: justify; margin-left: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">On November 18,
2019, Denison announced that it has entered into an agreement with
Cantor as a sole bookrunner and lead underwriter, on behalf of a
syndicate of Underwriters, under which the Underwriters have agreed
to purchase, on a "bought deal" private placement basis, 6,030,000
Flow-Through Shares at a price of CAD$0.68 per share, for total
gross proceeds of approximately CAD$4.1 million.</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: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">The Company has
granted the Underwriters an option to increase the gross proceeds
of the Offering by up to 15%, exercisable in whole or in part at
any time up to two business days prior to the closing date. The
Underwriters will seek to arrange for substituted purchasers for
the Flow-Through Shares in one or more provinces of
Canada.</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: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">The closing of
the Offering is expected to occur on or about December 6, 2019 and
is subject to the completion of formal documentation and receipt of
regulatory approvals, including the approval of the Toronto Stock
Exchange and the NYSE American. The Flow-Through Shares issued in
connection with the Offering will be subject to a statutory hold
period in accordance with applicable securities
legislation.</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: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">The Company has
agreed to use the gross proceeds from the sale of the Flow-Through
Shares for "Canadian exploration expenses" (within the meaning of
the <font style="font-style: italic">Income Tax Act</font>
(Canada)), related to the Company's Canadian uranium mining
exploration projects in Saskatchewan.</font></div>
<div style="text-align: justify; margin-left: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px;">&#xA0;</font></div>
<div id="pgbrk" style="width: 100%; margin-left: 0px; text-indent: 0px; margin-right: 0px">
<div id="ftr">
<div style="text-align: left; width: 100%"><font style="font-family: Times New Roman; font-size: 11px">&#xA0;</font></div>
</div>
<div id="pb" style="text-align: center; margin-left: 0px; margin-right: 0px; margin-bottom: 6px; page-break-after: always; width: 100%; height: 1px; background-color: #000000">
<!--page break line--></div>
<div id="hdr">
<div style="text-align: right; width: 100%"><font style="font-family: Times New Roman; font-size: 11px">&#xA0;</font></div>
</div>
</div>
<div style="text-align: justify; margin-left: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px;">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">The Company has
also agreed to renounce such Canadian exploration expenses with an
effective date of no later than December 31, 2019.</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: 48px; margin-right: 1px; text-indent: 48px">
<font style="font-weight: bold; font-family: Arial; font-size: 13px">5.2
Disclosure of Restructuring Transactions</font></div>
<div style="text-align: justify; margin-left: 96px; margin-right: 1px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">Not
applicable.</font></div>
<div style="text-align: justify; margin-left: 96px; margin-right: 1px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px;">&#xA0;</font></div>
<div style="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 144px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
6:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Reliance
on subsection 7.1(2) or (3) of National Instrument
51-102</font></div>
</div>
</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: 96px">
<font style="font-family: Arial; font-size: 13px">Not
applicable.</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="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 96px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
7:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br></font></div>
<div style="display: table-cell; width: 48px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Omitted
Information</font></div>
</div>
</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: 96px">
<font style="font-family: Arial; font-size: 13px">Not
applicable.</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="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 144px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
8:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Executive
Officer</font></div>
</div>
</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: 96px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px">For further
information, please contact David Cates, President &amp; Chief
Executive Officer, at (416) 979-1991 Ext. 362.</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="display: table">
<div style="display: table-row">
<div style="display: table-cell; width: 144px"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Item
9:&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;<br>
</font></div>
<div style="text-align: justify; display: table-cell"><font style="font-weight: bold; font-family: Arial; font-size: 13px">Date of
Report</font></div>
</div>
</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: 96px">
<font style="font-family: Arial; font-size: 13px">November 20,
2019</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-family: Arial; font-size: 11px">
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING
STATEMENTS</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-style: italic; font-family: Arial; font-size: 12px">
Certain information contained in this material change report
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.</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>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-style: italic; font-family: Arial; font-size: 12px">
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 material change report contains forward-looking information
pertaining to the following: the Company's expectations regarding
the proposed Offering, including the completion and use of proceeds
thereof; and exploration, development and expansion plans,
objectives and regulatory processes.</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>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="color: #000000; font-style: italic; font-family: Arial; font-size: 12px">
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. 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 Denison's Annual Information Form dated March
12, 2019 under the heading 'Risk Factors'. These factors are not
and should not be construed as being exhaustive.</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>
<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">
<font style="color: #000000">Accordingly, readers should not place
undue reliance on forward-looking statements. The forward-looking
information contained in this material</font> <font style="color: #000000">change report 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 material change report. Denison does not undertake any
obligation to publicly update or revise any forward-looking
information after the date of this material change report to
conform such information to actual results or to changes in
Denison's expectations except as otherwise required by applicable
legislation.</font></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>
<div id="pgbrk" style="width: 100%; margin-left: 0px; text-indent: 0px; margin-right: 0px">
<div id="ftr">
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Arial; font-size: 13px"><br></font></div>
</div>
<div id="pb" style="text-align: center; margin-left: 0px; margin-right: 0px; margin-bottom: 6px; width: 100%; height: 1px; background-color: #000000">
<!--page break--></div>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
