Orosur Mining Inc.: Issue of Ordinary Shares up...

Orosur Mining Inc.: Issue of Ordinary Shares upon Exercise of Stock Options

Orosur Mining Inc.

Orosur Mining Inc. ("OMI" or the "Company") (TSX-V: OMI) (LSE: OMI) announces that, following the exercise of options by employees, today the Company has issued a total of 59,832 Common Shares of the Company (“Common Shares”) at the following exercise prices: 44,500 Common Shares at CAD 0.60 per share; 8,666 Common Shares at CAD 0.61 per share 6,666 at CAD 0.75 per share.

Application has been made for 59,832 new Common Shares to be admitted to trading on AIM (“Admission”). It is expected that Admission will become effective and that dealings will commence on 22 December 2010 in respect of those Common Shares.

On Admission, the Company will have 65,172,889 Common Shares in issue.

ENDS

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

About Orosur Mining Inc.

Orosur Mining Inc. is a fully integrated gold producer and exploration company focused on identifying and developing gold projects in Latin America. The Company operates the only producing gold mine in Uruguay (San Gregorio), and has assembled an exploration portfolio of high quality assets in Uruguay and Chile.

The Company is quoted in Canada (TSX Venture Exchange: OMI) and London (AIM: OMI).

Orosur Mining Inc

David Fowler, CEO

Ignacio Salazar, CFO + 598 2601 6354

[e-mail]

or

Matrix Corporate Capital LLP

Louis Castro, [phone]

Tim Graham, [phone]

or

Blythe Weigh Communications

Tim Blythe: [phone]

Ana Ribeiro: [phone]

Matthew Neal: [phone]