Orosur Mining Inc. Posting of Annual Report

News Release

Orosur Mining Inc. Posting of Annual Report

MONTEVIDEO, Uruguay, September 30, 2010. Orosur Mining Inc. ("OMI" or the "Company") (TSX-V: OMI) (LSE: OMI) announces that it has posted to shareholders the Annual Report and Accounts 2010, together with the Notice of Annual General Meeting (‘AGM’) to be held at City of London Club, Garden Room, 19 Old Broad Street, London EC2N 1DS at 11:00 am on Tuesday 12th October 2010. The Annual Report and Accounts 2010 is also available for download from the Company’s website at www.orosur.ca.

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

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).

For further information, please contact:

Orosur Mining Inc

David Fowler, CEO:

Ignacio Salazar, CFO + 598 2601 6354; [email protected]

Matrix Corporate Capital LLP

Louis Castro, +44 (0) 203 206 7209 Tim Graham, +44 (0) 203 206 7206

Blythe Weigh Communications

Tim Blythe, 07816 924626 Ana Ribeiro, 07980 321505 Matthew Neal, 07917 800011