Will Los Gatos mine achieve sustained 4,000 tpd throughput by Q4 2026?

Los Gatos is AG's best asset with the lowest AISC ($18-19/oz) and a 10+ year mine life. The 4,000 tpd target is a stated management priority for H2 2026. The Gatos integration was described as the 'smoothest in 23 years,' suggesting operational competence at this mine. Underground mining throughput increases are achievable through optimization (better ground support, ventilation, haulage). The question asks about Q4 2026 average, giving the entire year to ramp up. Slightly above 50% reflecting reasonable confidence in management execution.

Throughput increases in underground mines depend on geological conditions (ground stability, orebody geometry), ventilation capacity, and haulage infrastructure. These are partially controllable but subject to geological risk. The 4,000 tpd target is a step-up from current levels (exact current throughput not specified). AG has the capital ($510M cash) and management focus. However, JV structure with Dowa (30%) may add complexity to capital allocation decisions. Probability near 50% reflecting genuine uncertainty about underground mining throughput optimization.

Management guided this target specifically for H2 2026, suggesting they have a concrete plan. Los Gatos was already a producing mine when acquired — this is throughput optimization, not building from scratch. The mine has a favorable geological structure (producing silver, zinc, and lead at scale). AG's operational track record supports execution. I weight management's specific guidance for this mine at this time somewhat above the mining project base rate because it's an optimization target, not a new construction project.

The 'sustained 4,000 tpd' criterion is important — this means average throughput in Q4, not peak. Achieving peak 4,000 tpd is easier than sustaining it as a quarterly average. Underground mining throughput is limited by development, ventilation, and ore handling capacity. AG has strong cash and execution record, but throughput targets in underground mines are frequently met with delays. Probability just below 50%.

This is genuinely a coin flip. Management has a specific target, adequate resources, and operational competence. But underground mining throughput increases depend on factors partially beyond management control (geology, ground conditions, equipment reliability). Without knowing the current throughput level and the specific gap to 4,000 tpd, hard to differentiate from 50%. Low confidence reflects this data gap.

Mining throughput targets are met roughly half the time. AG's management is competent but the committee flagged this as a key monitoring trigger specifically because achievement is uncertain. If it were highly likely, it wouldn't be worth monitoring. The fact that the committee identified it as an important trigger suggests meaningful uncertainty. Slightly below 50% accounting for typical mining throughput delays.

Throughput optimization target at an existing producing mine with strong management. But underground mining throughput increases are uncertain. Genuine coin flip.

Management guided H2 2026 for this target. Los Gatos is the best asset with lowest AISC. Strong incentive to deliver. But mining throughput targets typically face delays. ~48% probability.

Throughput optimization at producing mine is more achievable than greenfield construction. Management competent and incentivized. Slight edge toward achievement at ~52%.