Canadian-listed Rio2 Ltd has regrouped to replicate the success of Peru’s La Arena mine with a large heap leach gold operation at its 4.8m-ounce Fenix mine in Chile. Canadian-listed Rio2 Ltd has regrouped to replicate the success of Peru’s La Arena mine with a large heap leach gold operation at its 4.8m-ounce Fenix mine in Chile. Business / Companies Sydney Morning Herald – Business