Mr. Alex Black reports

RIO ALTO PRODUCES A RECORD 59,157 OUNCES OF GOLD IN Q3 2013

Rio Alto Mining Ltd.'s La Arena gold mine produced and sold a quarterly record of 59,157 ounces of gold during the three months ended Sept. 30, 2013 (143,940 ounces of gold poured for the nine months ended Sept. 30, 2013, compared with 135,691 ounces planned for the period).

 ORE AND WASTE PRODUCTION FROM THE LA ARENA GOLD MINE 
              FOR THE THIRD QUARTER OF 2013 

                             Actual            Planned   
                   Tonnes    Au g/t     Tonnes  Au g/t   
            
Ore mined       4,996,298     0.582  4,072,710   0.561     
Waste mined     5,595,440            5,467,298             
Ounces poured      59,157               63,022               

      PRODUCTION FOR THE FIRST NINE MONTHS OF 2013

                           Actual              Planned  
                   Tonnes  Au g/t      Tonnes   Au g/t  

Ore mined      10,429,545   0.585   9,681,003    0.508     
Waste mined    17,833,433          17,601,477            
Ounces poured     143,940             135,691                

Gold production exceeded plan for the first three quarters of the year due to better than expected ore grade of 0.585 gram per tonne compared with planned grade of 0.508 gram per tonne. Management reaffirms its production guidance of 190,000 to 210,000 ounces of gold production for calendar 2013.

As part of its 2013 operating strategy, the company completed the west-wall cutback of the Calaorco pit which is reflected in the 2013 quarter by quarter decrease in stripping ratio from 2.50 tonnes of waste to one tonne of ore in the first quarter, to 2.25 in the second quarter and 1.12 tonnes of waste to one tonne of ore in the third quarter. Management continues to optimize mining activities at La Arena and believes that the company will continue to generate strong positive cash flows.

Permitting for the La Arena phase II project is under way and a definitive feasibility study for the project is scheduled to be completed in the second quarter of 2014.

"Excellent progress has been made at La Arena during 2013. Not only have we achieved record quarterly gold production and on track to achieve our production guidance, but we also have been able to come up with a plan to continue high levels of gold production going forward whilst reducing our operating costs. 2013 was always going to be our worst year from a cost perspective because of the west-wall cutback but from the end of 2013 onwards, the project we will see a steady reduction of unit costs. The construction of the electrical substation and connection to the national energy grid is progressing well and on track for operation in Q3 2014. We are also analyzing the possibility of including an in-pit crushing and conveying option for ore and waste in our phase II project to reduce our dependency on diesel fuel and hence lower operating costs. Other potential improvements to the phase II project are currently being analyzed which has pushed the completion time for the definitive feasibility study to Q2, 2014," commented Alex Black, president and chief executive officer.

Rio Alto intends to release its third-quarter financial results on Nov. 13, 2013.

We seek Safe Harbor.