 Gold Resource Corporation NYSE-A:GORO, ETR:GIH told investors the miner had delivered another three months of over 10,000 gold-equivalent ounces from its Mexico operation in its second quarter. For the three months to June 30 this year, the miner sold 11,475 ounces of gold-equivalent Au-Eq compared to 9,685 in the second quarter of 2021. 