Exhibit 99.13
 
SRK Consulting (Canada) Inc.
1500, 155 University Avenue
Toronto, Ontario, Canada
M5H 3B7
 
T: +1.416.601.1445
F: +1.416.601.9046
 
toronto@srk.com
www.srk.com
 
CONSENT
 
Ladies and Gentlemen:
 
The undersigned hereby consents to (1) the references to the undersigned’s name included or incorporated by reference in the Annual Report on Form 40-F of Denison Mines Corp. and the registration statement on Form F-10 (File No. 333-238108) of Denison Mines Corp. (the “Registration Statement”) in connection with the report entitled “Prefeasibility Study Report for the Wheeler River Uranium Project Saskatchewan, Canada” dated October 30, 2018, and (2) all other references to the undersigned included or incorporated by reference in the Annual Report on Form 40-F of Denison Mines Corp. and the Registration Statement.
 
 
Dated: March 29, 2021
 
(Signed) Mark Liskowich
__________________________
Mark Liskowich, P.Geo.
SRK Consulting (Canada) Inc.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Local Offices:
Saskatoon
Sudbury
Toronto
Vancouver
Yellowknife
 
Group Offices:
Africa
Asia
Australia
Europe
North America
South America