P9 Au568 is an environmental friendly gold/silver leaching solution, which consists two components mixture of Au-568A and Au568B. This leaching reagent is low toxicity and does not contain any free cyanide. It is alkaline media (pH 10 -11), which will selectively leach gold and silver at a fast leaching rate and does not required any air agitation. The leaching circuit and application method is the same as that with sodium cyanide and is compatible with sodium cyanide extracting process, thus there is no need to give an overhaul to the equipment and process employed traditionally by the respective industry (e.g. electronic sectors, mining industry).