Copper Steady at US$14,417 as Chile Output Hits 15-Year Low
Copper prices held steady at US$14,416.50 per tonne on September 30, 2026, down 0.1%. Chile's copper output fell 12.8% year-on-year in August, the lowest since 2011. Unions at Antofagasta Minerals' Centinela mine voted 98.73% to strike. CPER fund fell 0.38%, Freeport-McMoRan lost 1.12%, while Southern Copper edged up 0.04%.
How this was made

The 30-second read
Why it matters
Copper price stability amid supply constraints suggests a floor for miners, but a strong dollar and rising yields limit upside.
Market read
Copper market dynamics affect mining equities and broader commodity sentiment; the data point on Chile output is a fresh macro input.
What to watch
Potential resolution of the Centinela strike could quickly improve supply outlook, benefitting miners.
Background
The article reports steady copper prices on the LME, a 12.8% YoY drop in Chile's August output, and strike risk at Antofagasta's Centinela mine, alongside price moves in copper‑related stocks.
Ticker impact
Freeport-McMoRan shares fell 1.12% to $70.00 as copper prices held steady, reflecting supply‑risk pressure.
downward pressure as copper supply concerns weigh on earnings outlook
Copper price unchanged but supply risk keeps the stock vulnerable; no new catalyst beyond broader market move.
Southern Copper edged up 0.04% to $202.64 while copper held steady, indicating limited impact from Chile output decline.
minimal movement; supply risk may support price but company exposure is broader
Small price change suggests market views the impact as limited for Southern Copper.
Market effects
Copper sector remains supported by supply constraints despite steady price.
Latin American mining stocks may see mixed reactions; Chile output drop pressures local producers.
Global copper market sees limited upside as dollar strength caps further gains.
Counterpoint
If the dollar weakens and yields fall, copper could rally, lifting miners despite current supply concerns.
Key entities
- CountryChile
Reported a 12.8% YoY decline in copper output, lowest since Feb 2011.
- CompanyAntofagasta Minerals
Centinela mine strike vote at 98.73%; mediation ongoing.


