MediumI Geo-Economics & Chokepoints5 November 2026, Thursday
Codelco admits inflated copper output exceeded 42,000 tonnes
An extraordinary shareholder meeting of Chile's state-owned Codelco heard on 5 November that 2024–2025 output had been overstated by about 42,100 tonnes. A preliminary estimate puts the accounting impact at 120–140 million dollars.
According to Emol, chairman Bernardo Fontaine said 2024 output had been overstated by 24,000 tonnes and 2025 by 18,100 tonnes. Radio Universidad de Chile gives 27,600 tonnes for 2024; the sources conflict. Fontaine described 3 methods: booking unprocessed material as final output, double-counting between divisions and shifting production from one year to the next. KPMG is reviewing all divisions and EY the double-counted entries; both audits will conclude in December.
The meeting was called on behalf of the state by Finance Minister Jorge Quiroz and Mining Minister Daniel Mas. Quiroz said the state had invested about 32 billion dollars over 8 years, while output fell from roughly 1.7 million to 1.3 million tonnes. According to Emol, Codelco transferred 7 billion dollars to the state over the past 4 years, 43% less than in the previous 4 years. The company dismissed 8 executives and specialists on 29 October.
The episode comes as Chilean supply is already shrinking. According to La Tercera, Cochilco on 30 October cut its 2026 Chilean output forecast by 8.4% to 4.94 million tonnes; January–September output fell 8.5% to 3.63 million tonnes. Escondida, Codelco and Spence account for 77.3% of the net decline. Cochilco raised its 2026 average price forecast to 6.18 dollars a pound.
Talay assessment
Bottom line
The 42,100 inflated tonnes are small relative to global supply, but they shake confidence in the data of the world's largest copper producer. The real constraint is not the accounting but output that keeps falling despite investment, alongside shrinking transfers to the state. The most likely path is for the December audits to confirm the figure and for the government to pursue structural change in 2027.
Likely effects
- Copper supplyNegative1–6 months
Cochilco's 4.94-million-tonne forecast has already been cut for a third time; a data-reliability problem widens forecast uncertainty.
- Chilean public financesNegative6 months+
Codelco's transfers to the state fell 43% over 4 years; the budget can lean less on copper revenue.
- TürkiyeNegative1–6 months
Tighter copper supply keeps input costs high for cable and white-goods manufacturers.
Possibilities, ranked
- 1Audit and structural reform60%
KPMG and EY confirm the figure in December, and in 2027 the government proposes a governance change that preserves state control.
Watch: KPMG and EY audit results due in December
- 2The figure grows25%
The audits find inflation in other divisions too, and the 2026 output statement is revised down.
Watch: Codelco revising its 2026 production guidance
- 3Scope narrows15%
The final audit figure comes in below the preliminary estimate, and the debate shifts to the cost plan.
Watch: The final accounting adjustment coming in below 120 million dollars
Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.
Market reaction
Indicators affected
- Inflated output▲ 42,100 t
- Accounting impact▲ $120–140m
- Chile 2026 output▼ −8.4%
Sources
- Emol — Codelco: Producción 'falseada' suma 42.100 toneladas y podría implicar castigo contable de US$140 millones
- Radio Universidad de Chile — Codelco: Gobierno exige esclarecer irregularidades y anuncia revisión de la estructura de la estatal
- La Tercera — Cochilco eleva proyección del precio del cobre, pero vuelve a bajar la estimación de producción en Chile para 2026