Iran’s second-largest copper mine has reported a three-fold increase in its ore deposits as the country moves ahead with plans to develop its untapped mineral resources.

EghtesadOnline: Zarshouran Gold Mine produced a total of 367 kilograms of gold ingots in the first five months of the current Iranian year (March 20-Aug. 21), registering a 23% rise compared with the same period of last year.