Rio Alto Mining Ltd.

CALGARY, ALBERTA -- (Marketwire) -- 10/29/10 -- Rio Alto Mining Limited (the 'Company') (TSX VENTURE: RIO)(OTCQX: RIOAF)(BVLAC: RIO)(DBFrankfurt: MS2) is pleased to announce that Coffey Mining Pty. Ltd., the Company's independent engineers, have completed the Technical Report that was referred to in the Company's news release of September 15, 2010 in respect of updated reserve and resource estimates and financial

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CALGARY, ALBERTA -- (Marketwire) -- 10/15/10 -- Rio Alto Mining Limited ('Rio Alto' or the 'Company') (TSX VENTURE: RIO)(OTCQX: RIOAF)(BVLAC: RIO)(DB Frankfurt: MS2) is pleased to announce that it has completed definitive documentation and drawn down an initial tranche of US$5 million under the previously announced US$25 million gold prepayment agreement (the 'Prepayment Facility') with Red Kite Explorer Trust

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Rio Alto Mining announces that it has granted stock options to employees, a consultant, officers and directors to acquire a total of 2,100,000 common shares pursuant to the terms of the Company's stock option plan. Stock options to acquire 1,050,000 common shares were issued to directors. These options are exercisable at $1.80 per common share, which is $0.45 greater than the September 20, 2010 closing price of the [...]

Rio Alto Mining is pleased to announce updated resource and reserve estimates and financial estimates for the La Arena Project in north central Peru. The resources and reserves estimate and financial model review was completed by the Company's independent engineers, Coffey Mining Pty. Ltd. based on information from recently completed studies. These estimates will be incorporated in a National Instrument 43-101 [...]

Rio Alto Mining announces that its board of directors adopted a shareholder rights plan similar to those recently adopted by other Canadian public companies. Shareholder approval of the plan will be sought at the upcoming shareholders' meeting to be held on September 29, 2010.

Rio Alto Mining is pleased to announce that it has entered into an investor relations agreement with Marc Andrews of San Francisco. Mr. Andrews possesses an extensive background in the investment industry which includes investor relations and corporate communications consultant positions for public and private companies in the energy and mining sectors. Mr. Andrews will leverage his knowledge and experience with the [...]