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TSX:LUNBearishIndustry NewsShort Term

High materiality7/10

Lundin Mining's Chile Operations Impacted by Second Severe Winter Storm

StockNews.AIAug 19, 2:00 AM EDT1 source

Trading thesisImportance 7/10

Caserones downgrades create near-term headwinds for LUN; monitor 2H26 recovery trajectory.

AI summary

What happened and why it matters

Lundin Mining updated its Chile operations after a second winter storm, lowering Caserones’ 2026 copper guidance to 120k–130k tonnes and raising cash costs to $2.15–$2.35 per lb. Consolidated copper production guidance remains 300k–325k tonnes with cash costs of $1.95–$2.15 per lb, while Candelaria stays on track. Power restoration is expected by week-end with a gradual ramp-up thereafter, signaling near-term pressure but potential stabilization as the year progresses.

Caserones downgrade likely reduces near-term LUN copper volumes and revenue.
End-week power restoration timing will influence Caserones' ramp-up and sales pace.
Consolidated guidance remains intact; Caserones weaker within Chile exposure.
Copper price movements will modulate actual realized costs and margins.

Sentiment rationale

Near-term cash-flow and margin pressures from Caserones downtime; potential investors may reevaluate 2026 earnings. Historical weather-related mine outages have briefly pressured stock performance; the magnitude will depend on the speed of recovery and changes to the ramp-up trajectory.

Key facts

01
Second winter storm disrupts Caserones recovery; full production delayed.
02
Caserones 2026 copper guidance reduced to 120k–130k tonnes; cash cost 2.15–2.35.
03
Consolidated 2026 copper production guidance 300k–325k tonnes; cash cost 1.95–2.15.
04
Candelaria remains on track to meet guidance; Chapada data implied; overall guidance revised.
05
Power restoration expected by week-end; ramp-up at Caserones to follow.

Industry News

Industry News. The update centers on operational disruptions and revised production/cash-cost guidance, a core driver of near-term valuation for a copper-focused miner like Lundin.