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ORIFER SA
22 — 24 Rives de Clausen
2165 Luxembourg
Tel: (42) 79 413 50 27
April 20, 2011
NEWS RELEASE
Luxembourg. Jean-Edgar de Trentinian, President of Orifer SA ("Orifer") announces
that Orifer intends to sell up to 140,400,000 Share Purchase Warrants of Yukon-Nevada Gold
Corp. ("YNG") from its control base. This sale will not result in a reduction of Orifer's and Mr.
de Trentinian's direct and indirect shareholdings of 190,480,500 shares, representing 25.20% of
the issued and outstanding share capital (755,816,679 shares) of YNG, but if completed will
reduce the number of Orifer's presently held warrants to zero.. The securities will be distributed
privately. The proposed commencement date of the sale is April 28, 2011.