Will Lindero resume normal production levels by Q2 2026 after the crusher repair?

Crusher foundation replacements are a well-understood mining engineering procedure. The $2.2M cost and 35-day planned downtime suggest management has a clear scope of work. Pre-stockpiling ore mitigates the production impact. The root cause (structural fatigue) is identified and the solution (foundation replacement) is straightforward. Mining companies regularly complete these repairs successfully. The question is whether the repair reveals additional problems — possible but not the base case for a targeted foundation replacement with a defined scope.

The resolution requires Q2 production of 20,000+ oz (annualized ~80Koz). With the repair scheduled for March 2026, Q2 (April-June) should see full operations restored. Heap leach operations have inherent recovery lags — leaching continues during crusher downtime from ore already placed, and stockpiled ore feeds the crusher immediately upon restart. However, the structural fatigue diagnosis raises a question: was this the only area of concern, or could related foundation issues emerge? At 5 years old, a heap leach is relatively young, and structural fatigue this early is somewhat concerning. I discount slightly for the possibility of complications.

Management proactively disclosed the issue, budgeted the repair, and pre-stockpiled ore. This level of preparation suggests high confidence in the repair scope and timeline. Lindero operates in Salta, Argentina with good infrastructure access (not a remote jungle site). Equipment and contractors are available. The 20,000 oz Q2 threshold is conservative — it's below the annualized FY2025 run rate of ~22Koz/quarter. Even with some startup inefficiency, achieving 20,000 oz in a full quarter of operation after March repair is highly probable.

The repair is well-scoped and management appears prepared. However, mining maintenance projects frequently encounter scope creep — what starts as a foundation replacement can reveal additional wear on ancillary systems (conveyor supports, structural steel). The 35-day estimate could extend to 45-60 days if complications arise, pushing the restart deeper into April. Even so, a May-June production ramp would likely reach 20Koz if operations normalize. The bigger risk is that the structural fatigue indicates a design or construction deficiency that requires ongoing monitoring.

Base case is successful repair and production normalization. Key risk factors: (1) Argentine supply chain for specialized foundation components could cause delays, (2) weather in Salta can affect construction activities, (3) heap leach ramp-up after extended downtime may take 2-3 weeks to reach steady-state throughput. The 20,000 oz threshold for Q2 implies roughly 220-240 tonnes per day of ore processing, which is below Lindero's design capacity. Achievable even with a 2-3 week ramp-up period after April restart.

Fortuna has operated Lindero since commissioning and has institutional knowledge of the facility. The crusher foundation issue was identified, diagnosed, and repair planned within one quarter — suggesting competent mine engineering team. The pre-stockpiling strategy demonstrates operational planning capability. I assess ~75% probability of Q2 normalization, with the remaining 25% split between (a) repair complications extending into April-May (~15%) and (b) discovery of additional structural issues requiring further work (~10%).

Well-scoped repair ($2.2M, 35 days), management prepared with pre-stockpiling, March timeline allows full Q2 operations. Crusher foundation replacement is standard mining engineering. High probability of success.

Likely successful but mining repairs can encounter unexpected issues. Foundation fatigue at 5 years is somewhat early. Small risk of scope expansion. Still well above 50% probability given management preparation.

20,000 oz Q2 threshold is conservative relative to historical production. Even with some delay, normalized operations by mid-Q2 would likely achieve the target. Pre-stockpiled ore provides buffer. Probability around 75%.