Notice of Q2 Results Release and Conference Call

Notice of Q2 Results Release and Conference Call

Orosur Mining Inc.

Orosur Mining Inc. Announces
2010 Second Quarter and Half Year Earnings Conference Call and Web Cast
10:00 AM Eastern and 15:00 UK time,
Friday January 15, 2010

MONTEVIDEO, Uruguay, January 13, 2010. Orosur Mining Inc. ("OMI" or the "Company") (TSX VENTURE:OMI) (LSE:OMI) announces that it will hold its fiscal 2010 quarterly and first half earnings and investor update conference call and on Friday January 15, 10:00 Eastern Time, 15:00 UK time.

The Company’s CEO, David Fowler, will brief investors on operating results and development plans, and answer questions from call participants. Web cast participants may submit questions in advance by email at [e-mail]

The earnings release for the second quarter and 6 months ended November 30, 2009 will be issued on Thursday January 14 at 7:00 UK time.

The conference call can be accessed by dialing [phone] (Canada and US) or [phone] (UK and International). All participants will be required to register with the operator.

A simultaneous web cast of the conference call and replay will be available at http://www.uruguayminerals.com. You will need to have Windows Media Player installed on your computer and you will also be required to complete a registration page in order to log on to the webcast.

A slide presentation will also be available prior to the call / web cast for download from the investor relations section of Orosur Mining Inc.’s corporate website at http://www.uruguayminerals.com/investors/presentations/.

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 gold producer and exploration company focused on identifying and developing gold projects in Latin America. The Company is a fully integrated mining company, possessing the skills necessary to explore and develop its discoveries. The Company operates the only producing gold mine in Uruguay (San Gregorio), and has assembled an exploration portfolio of high quality assets in Uruguay, Chile and Argentina.

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:David Fowler, CEO:
Ignacio Salazar, CFO + 598 2 6016354; Ignacio Salazar, CFO + 598 2 6016354; [e-mail]

Matrix Corporate Capital LLP
Louis Castro, [phone]Louis Castro, [phone]
Tim Graham, [phone]Tim Graham, [phone]

In North America
Forbes West 416-203-2200 / 888-655-5532Forbes West 416-203-2200 / 888-655-5532