TORONTO, ONTARIO--(MARKET WIRE)--May 8, 2008 -- Denison Mines Corp. ("Denison" or the "Company") (Toronto:DML.TO - News)(AMEX:DNN - News) announces that the Company will hold a telephone conference with a webcast presentation at 8:30 am EDT on May 15, 2008 to discuss financial results for the First Quarter 2008 for the period ending March 31, 2008.

Please call in 5-10 minutes before the conference starts and stay on the line (an operator will be available to assist you). The Call in number is (416) 641 - 6127.

To view the live presentation, please log on at www.denisonmines.com 10 minutes prior to the call.

Approximately two hours after the call:

- a replay of the telephone conference will be available at (416) 695 - 5800 and the passcode is 3260745; and

- the presentation will be available at www.denisonmines.com.

About Denison

Denison Mines Corp. is a premier intermediate uranium producer in North America, with mining assets in the Athabasca Basin region of Saskatchewan, Canada and the southwest United States including Colorado, Utah, and Arizona. Further, the Company has ownership interests in two of the four conventional uranium mills operating in North America today. The Company also has a strong exploration and development portfolio with large land positions in the United States, Canada, Mongolia and Zambia.

     Contacts:
     Denison Mines Corp.
     E. Peter Farmer
     (416) 979-1991 ext. 231
      
     Denison Mines Corp.
     Ron Hochstein
     (604) 689-7842
      
     Denison Mines Corp.
     James Anderson
     (416) 979-1991 ext. 372
     Website: http://www.denisonmines.com