〔Overnight Brief〕LME Copper +$58 to $14,273 and Zinc +$12 to $3,835 Mask Diverging Supply: Las Bambas Restarts, Rusal Halts Alumina - Defense-Metals Hunt, Hindustan Copper Divestment, Seawater-Magnesium Pitch

0. Overnight Arc

LME industrial metals closed mixed — copper and zinc firmed, aluminum slipped — even as two supply shocks pulled in opposite directions ^[1]. MMG's Las Bambas copper mine in Peru restarted on Aug 21 after an Aug 19 accident killed two workers and injured three ^[2]; a Rusal train derailment in Guinea's Dubreka prefecture halted alumina exports and injured four on Saturday evening ^[3]. The corporate-policy layer thickened in parallel: India moved to divest up to 6% of Hindustan Copper ^[4], Ganfeng Lithium locked in the PPGS lithium salt lake integration with LAR ^[5], and Washington opened a fresh hunt for defense-grade critical minerals ^[6].

1. LME Settlements — Mixed Tape

• **[NEW] Copper:** +$58 to $14,273/t ^[1].
• **[NEW] Zinc:** +$12 to $3,835/t ^[1].
• **[NEW] Aluminum:** -$9 to $3,228/t ^[1].
• **[NEW] Cross-asset backdrop:** People's Daily flagged surging "compute-power metals" prices, framing resource security as a policy lever ^[7]. The editorial lead covers metals tied to AI/data-center buildout rather than the LME trio specifically — treat as adjacent commentary, not a direct read of the LME tape.

2. Supply Disruptions — Restarts and Derailments

• **[NEW] Las Bambas restart:** Hong Kong-listed MMG (1208.HK) confirmed operations resumed Aug 21 after a temporary suspension from Aug 19 triggered by an accident that killed two workers and injured three; Peru's labor watchdog has opened an investigation ^[2]. Falsifiable test: ramp pace to nameplate, not the restart date itself.
• **[NEW] Rusal Guinea derailment:** A Rusal-operated alumina train derailed near Kagbelen in Dubreka prefecture on Saturday evening, injuring four and forcing suspension of rail traffic to the Friguia alumina refinery; alumina exports have been halted and production has slowed, though a senior Friguia official said alumina output at the refinery is continuing ^[3]. The load-bearing detail is the split between halted exports and continuing production — rail logistics, not plant capacity, is the binding constraint. Sourcing: three Reuters sources plus two company officials, stronger on the event, thinner on the export-duration estimate.

3. Corporate Pipeline

• **[NEW] Hindustan Copper stake sale:** India plans to sell up to 6% of state-run Hindustan Copper ^[4]. Mechanism: government divestment, not strategic expansion.
• **[NEW] Ganfeng–LAR PPGS integration:** Ganfeng International and LAR signed a series of definitive agreements to jointly develop the PPGS lithium salt lake project, consolidating it into Millennial with a 67% (Ganfeng) / 33% (LAR) ownership split ^[5]. The project is planned in three phases with a total design capacity of 150,000 tonnes per annum of lithium carbonate equivalent; integration is targeted for completion by end-Q3 2026, with RIGI (Argentina's large-investment incentive regime) approval expected by year-end ^[5].

4. Policy and Strategic Frame

• **[NEW] US defense-mineral hunt:** The Trump administration is soliciting investment pitches from domestic producers of metals used in fighter jets, night-vision goggles, and tank armor ^[6]. Modal read: demand-side signaling ahead of capital allocation, not yet contracts.
• **[NEW] Indonesia commodity exchange:** Indonesia's president-nominee to regulate commodity trading said the upcoming minerals and strategic commodity exchange will be built on "trustworthy infrastructure" and is set to begin operations on January 1; Indonesia is the world's largest exporter of thermal coal, palm oil, and nickel ^[8]. Falsifiable test: the first nickel contract and price reference, not the launch date.
• **[NEW] WSJ opinion — magnesium from seawater:** A WSJ editorial argues the US can break China's grip on the magnesium industry by extracting the metal from seawater ^[9]. Single-source opinion; treat as commentary, not a project pipeline.