Denison Announces Filing of Technical Report for Wheeler River PEA

TORONTO, ONTARIO--(Marketwired - May 12, 2016) - Denison Mines Corp. ("Denison" or the "Company") (DML.TO)(NYSE MKT:DNN) today announces that it filed a technical report under Canadian Securities Administrators' National Instrument 43-101 Standard of Disclosure for Mineral Projects for its 60% owned Wheeler River Project in Saskatchewan titled "Preliminary Economic Assessment for the Wheeler River Uranium Project, Saskatchewan, Canada" dated April 8, 2016 with an effective date of March 31, 2016.

The technical report is posted on the Company's website at www.denisonmines.com and is available under its profile on SEDAR at www.sedar.com and on EDGAR at www.sec.gov/edgar.shtml.

This report supports the disclosure made by the Company in its news release dated April 4, 2016, "Denison reports results from Wheeler River PEA, including pre-tax IRR of +20% at current uranium prices and initial capex of CAD$336m" (the "News Release") and there are no material differences in the technical report from the information disclosed in the News Release.

As outlined in the News Release, the Preliminary Economic Assessment ("PEA") considers the potential economic merit of co-developing the high-grade Gryphon and Phoenix deposits, on Denison's 60% owned Wheeler River project, as a single underground mining operation, and assumes processing at Denison's 22.5% owned McClean Lake mill, which is located in the infrastructure rich eastern portion of the Athabasca Basin. The PEA returned a base case pre-tax Internal Rate of Return ("IRR") of 20.4% at current uranium prices, based on today's long term contract price for uranium, and Denison's share of estimated initial capital expenditures ("CAPEX") of CAD$336M (CAD$560M on 100% ownership basis).

Highlights of the PEA:

  • Current uranium price: Base case scenario uses today's long term contract price for uranium of US$44 per pound of U3O8, leading to a pre-tax IRR of 20.4% and a pre-tax Net Present Value ("NPV") of CAD$513M (Denison's share CAD$308M);

  • Exposure to rising uranium price: Strong profitability at today's price offers lower risk exposure to rising prices, as evidenced by a US$62.60 per pound U3O8 production case scenario resulting in a pre-tax IRR of 34.1% and pre-tax NPV of CAD$1,420M (Denison's share CAD$852M);

  • Strategic development plan: Designed to minimize risk, generate higher up-front margins, and reduce initial capital funding requirements - by development of the conventionally mined basement hosted Gryphon deposit first, followed by the unconformity hosted Phoenix deposit;

  • Existing infrastructure & reduced risk: Decreased project risk, capex, and schedule by utilizing existing infrastructure in the eastern Athabasca Basin (including excess milling capacity, provincial highways, and the provincial power grid), justifying an 8% discount rate, and leading to an initial project CAPEX of CAD$560M (Denison's share CAD$336M);

  • Cash operating costs: The Gryphon deposit is expected to produce 40.7 million pounds U3O8, over a seven year mine life, at a cash operating cost of USD$14.28 per pound U3O8. The Phoenix deposit is expected to produce 64.0 million pounds U3O8, over a nine year mine life, at a cash operating cost of USD$22.15 per pound U3O8;

  • Resource upside: Ability to incorporate potential mineral resource growth at the Gryphon deposit, as demonstrated by the high-grade intersections previously reported from the winter 2016 exploration program (not included in the PEA), including drill holes WR-641, with 3.9% eU3O8, over 9.2 metres, and WR-633D1, with 1.7% eU3O8 over 7.6 metres including 6.3% eU3O8 over 1.7 metres (see Denison news release dated March 10, 2016).