Aranzazu Copper Mine Revenue and Earnings Potential I estimate that it may take Aranzazu 1-2 quarters to start commercial production. We know that the throughput will be 3,000 tpd, because that run rate equates to 8 million pounds of copper, 5,000 ounces of gold, and 110k oz of silver per quarter. The following spreadsheet shows revenue, mining costs, and treatment charges and penalties associated with 0.9 percent arsenic content in the copper concentrate. At current metal prices, Arzanzazu would generate $3.4 million USD in after tax profit.
