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Will Alcoa achieve full restart of San Ciprian smelter by year-end 2026?

Resolves December 31, 2026(266d)
IG: 0.64

Current Prediction

48%
Likely No
Model Agreement98%
Predictions9 runs
Last UpdatedApril 8, 2026

Why This Question Matters

San Ciprian smelter restart (currently 65% operational) tests capital deployment discipline. Full restart would add volume and lower per-unit costs. Failure to fully restart would signal that the asset remains uneconomic even at current prices, validating MIXED capital deployment concerns.

CAPITAL_DEPLOYMENTFUNDING_FRAGILITY

Prediction Distribution

0%25%50%75%100%
opus
sonnet
haiku
Range: 45%52%Aggregate: 48%
Individual Predictions(9 runs)
opusRun 1
52%

San Ciprian is at 65% and targeting full restart in 2026 — about 9 months to achieve the remaining 25+ percentage points to reach 90%. The economics at current aluminum prices ($2,600+) support the restart. Management has publicly committed to the timeline and government cooperation is secured. However, smelter restarts are technically complex, the asset has a 'troubled history,' and EU energy costs could complicate economics. Slight lean toward YES given management commitment and favorable economics.

Management committed to 2026 timelineFavorable aluminum prices support economicsTechnical complexity of restarting idle potlines
opusRun 2
48%

The 'troubled history' designation from the Stress Scanner is concerning. Assets with problematic track records tend to continue experiencing issues. Going from 65% to 90%+ involves restarting the remaining idle potlines, which requires significant electrical infrastructure, pot lining, and skilled workforce. EU energy price volatility is a real risk — if power costs spike, management may strategically slow the restart. Near coin-flip reflecting genuine uncertainty.

Troubled history suggests ongoing operational riskEU energy price volatility could alter economics65% to 90% requires significant technical execution
opusRun 3
50%

The economics strongly favor full restart at current prices. The technical pathway from 65% to 90% is achievable within 9 months. However, management may strategically delay if aluminum prices soften — they would rather preserve optionality than commit to full restart if margins are marginal. This creates a scenario where full restart happens only if prices cooperate, making the outcome partly conditional on the aluminum price market. True coin-flip.

Economics favor restart at current pricesManagement may strategically delay if prices soften9 months is sufficient if execution is clean
sonnetRun 1
50%

Management targeting full restart is a positive signal, and current aluminum prices support the economics. However, the asset's troubled history and EU energy dynamics create execution risk. The 90% threshold is high — even minor delays could leave the smelter at 80-85% by year-end. True coin-flip with slight skew depending on energy costs.

90% threshold is demandingEnergy costs are swing factorManagement commitment is credible at current prices
sonnetRun 2
45%

Smelter restarts in Europe have a mixed track record. EU regulations and energy market volatility add complexity that North American operations don't face. The gap from 65% to 90% is significant and the timeline is tight. Labor relations in Spain can be complex. I lean slightly below 50% reflecting the operational challenges of European smelter operations.

European smelter restarts have mixed track recordSpanish labor relations add complexity65% to 90% gap is significant
sonnetRun 3
48%

The restart is progressing (65% operational) which suggests the technical pathway is viable. At current prices, the economic incentive is clear. But the remaining 25+ percentage points represent the harder portion of the restart (idle potlines that have been offline longest). The troubled history weighs on confidence. Slight lean below coin-flip.

Progress to 65% demonstrates viabilityRemaining potlines may be harder to restartTroubled asset history weighs on confidence
haikuRun 1
48%

Economics favor restart but execution risk is material. 65% to 90% is achievable but tight. EU energy costs and troubled history create headwinds. Near coin-flip leaning slightly NO.

Favorable economicsExecution riskTight timeline
haikuRun 2
45%

Troubled history and European operational complexity suggest below coin-flip probability. Management commitment is credible but timelines for industrial restarts often slip. 90% threshold is demanding.

Troubled historyIndustrial restart timelines often slip90% is a demanding threshold
haikuRun 3
47%

Progress to 65% is encouraging. Current prices provide strong incentive. But European operations face more headwinds than North American counterparts. Slight lean below 50% reflecting execution uncertainty.

65% progress is encouragingStrong price incentiveEuropean execution risk

Resolution Criteria

Resolves YES if Alcoa reports the San Ciprian smelter at 90%+ of nameplate capacity by Q4 2026 earnings. Resolves NO if the smelter remains below 90% capacity.

Resolution Source

Alcoa quarterly earnings releases or operational updates

Source Trigger

San Ciprian smelter at 65% operational, targeting full restart 2026; troubled asset history

stress-scannerCAPITAL_DEPLOYMENTMEDIUM
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