Key Takeaways Aris Mining's Q1 consolidated AISC rose 6% YoY to $1,667/oz, reflecting weaker cost efficiency. Higher CMP mill feed costs, royalties and processing expenses drove ARMN's cost increase. ARMN shares surged 95.7% year to date and trade at a 67.1% discount to its industry average.Aris Mining Corporation (ARMN) reported an increase in its first-quarter all-in-sustaining costs (AISC) per ounce, a key indicator of cost efficiency in mining. The Segovia Operations in Colombia, a cornerstone of Aris ...