Key Takeaways Q1 AISC of Barrick rose 20% year over year due to higher cash costs and lower production. B forecasts 2025 AISC of $1,460-$1,560, indicating a year-over-year increase at the midpoint. EPS estimates for 2025 and 2026 are rising for B, and it trades at a discount to the industry average.Barrick Mining Corporation (B) is reeling under the effects of rising unit costs. Its cash costs per ounce of gold and all-in-sustaining costs (AISC) — a critical cost metric for miners — increased around 16% a ...