| Denison Initiates Ore Buying Program for White Mesa Mill - Thursday July 5, 8:20 am ET
 TORONTO, ONTARIO--(MARKET WIRE)--Jul 5, 2007 --
 
 Denison Mines Corp. -
 ("Denison" or the "Company") (Toronto:DML.TO - News)
 (AMEX:DNN - News) is pleased to announce the start of
 a uranium ore buying program to supplement feed for
 the Company's 100% owned White Mesa Mill in Utah.
 
 The White Mesa Mill -
 is a 2,000 ton per day dual circuit mill and is currently
 the only conventional uranium mill operating in the U.S.
 
 Ore from the Company's mining operations in the U.S.
 is currently being stockpiled at the Mill with processing
 scheduled to start in the first quarter of 2008.
 
 The addition of purchased ore from third parties will
 maximize the efficiency of this large capacity mill.
 
 The Company anticipates purchasing approximately 40,000 tons
 of uranium ore per year.
 
 The ore buying schedule for the month of July is posted on
 the Company's website -
 denisonmines.com
 and will be updated monthly.
 
 Ron Hochstein, President and COO of Denison, commented,
 "This new ore buying program is the first for -
 the White Mesa Mill since 1998.
 With current all time high prices, the uranium industry
 has been rejuvenated in the four corner states area
 with several mines being re-opened, including the Company's.
 
 Denison's mill is the only operating one in a 500 mile radius
 in the heart of the historic uranium producing district in
 the U.S. and we very much look forward to working with
 the independent miners in the region."
 
 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 uranium mills operating in North America today.
 
 The Company also has a strong exploration portfolio with
 large land positions in the United States, Canada and
 Mongolia.
 
 Correspondingly, the Company has one of the largest uranium
 exploration teams among intermediate uranium companies.
 
 Cautionary Statements
 This news release contains "forward-looking statements"--
 - forward-looking statements, there may be other factors that
 cause results not to be as anticipated, estimated or intended---- disclosure documents filed since
 December 31, 2006 available at www.sedar.com,
 for further information relating to their mineral
 resources and mineral reserves --
 --Inferred Mineral Resource exists, or is economically or
 legally mineable.
 
 Contact:
 
 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
 (416) 979-5893 (FAX)
 Website:
 
 denisonmines.com
 
 Source: Denison Mines Corp.
 
 biz.yahoo.com
 
 
  
 The White Mesa mill -
 
 siliconinvestor.com
 
 siliconinvestor.com
 
 siliconinvestor.com
 
 Subject 57097
 
 Subject 56922
 
 
 
 |