Denison Mines Buys Assets of Fission Energy

Denison Mines Corp.

is pleased to announce the signing of a Binding Letter of Intent (the "Binding LOI") pursuant to which Denison will acquire a portfolio of uranium exploration projects from Fission Energy Corp. ("Fission") including Fission's 60% interest in the Waterbury Lake uranium project, as well as Fission's exploration interests in all other properties in the eastern part of the Athabasca Basin, its interests in two joint ventures in Namibia plus its assets in Quebec and Nunavut (together, the "Assets"). Under the terms of the Binding LOI, Denison has agreed to offer shareholders of Fission 0.355 shares of Denison for each share of Fission held, conditional upon, among other things, certain assets of Fission being spun out to a new company ("NewCo") to be held pro rata by current Fission shareholders (collectively, the "Transaction"). NewCo assets will include, among others, a 50% interest in the Patterson Lake South ("PLS") property located in the western Athabasca Basin. The Transaction values the Assets at approximately $70 million based on the closing price of Denison as of January 15, 2013. Upon completion of the Transaction, shareholders of Fission will own approximately 11% of Denison. The board of directors of Fission, following consultation with its financial and legal advisors, has approved the Transaction and recommends that Fission shareholders vote in favour of the Transaction. Fission's board of directors has received a verbal opinion from Dundee Capital Markets that the consideration pursuant to the Transaction is fair, from a financial point of view, to Fission shareholders.