<SEC-DOCUMENT>0001104659-20-113097-index.html : 20201007
<SEC-HEADER>0001104659-20-113097.hdr.sgml : 20201007
<ACCEPTANCE-DATETIME>20201007163455
ACCESSION NUMBER:		0001104659-20-113097
CONFORMED SUBMISSION TYPE:	SUPPL
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20201007
DATE AS OF CHANGE:		20201007
EFFECTIVENESS DATE:		20201007

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:		SUPPL
		SEC ACT:		
		SEC FILE NUMBER:	333-238108
		FILM NUMBER:		201229423

	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>SUPPL
<SEQUENCE>1
<FILENAME>tm2032653d1_suppl.htm
<DESCRIPTION>SUPPL
<TEXT>
Document 1 - file: tm2032653d1_suppl.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>logo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: logo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>tm2032653d1_supplimg001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: tm2032653d1_supplimg001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>tm2032653d1_supplimg002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: tm2032653d1_supplimg002.jpg

</DOCUMENT>
</SEC-DOCUMENT>