Masbate Gold Mine - Mining Technology"The project is on the island of Masbate, about 350km south of the Philippines capital, Manila." CGA acquired the mine in March 2007 and became the owner and operator of the mine. Philippine Gold Processing & Refining Corp (PGPRC) was the developer and owner the processing plant. It was responsible for the sale of.gold processing plant in philippines,Siana Gold Project, Mindinao - Mining TechnologyThrough its Philippines subsidiary Greenstone Resources, Red 5 is developing the Siana gold mine in the southern Philippine island of Mindinao. . Cyanide detoxification will be conducted on the resultant tailings to remove any remnant cyanide before depositing them in the tailings dam near the processing plant.