To: Denison Mines Corp.

CONSENT of QUALIFIED PERSON

I, Lorne D. Schwartz, consent to the public filing of the technical report titled Preliminary Economic Assessment for the Wheeler River Uranium Project, Saskatchewan, Canada, (the Technical Report) with an effective date of March 31, 2016, by Denison Mines Corp.

I also consent to any extracts from or a summary of the Technical Report in the press release of Denison Mines Corp. dated April 4, 2016 (the “Disclosure”).

I certify that I have read the Disclosure and that it fairly and accurately represents the information in the sections of the Technical Report for which I am responsible.

Dated this 8th day of April 2016.

“signed and sealed”

Lorne D. Schwartz, PEng

Senior Engineering Specialist

Amec Foster Wheeler

301-121 Research Drive

Saskatoon, SK S7N 1K2

Tel:            306.477.1155

Fax:            306.477.1161

www.amecfw.com