Chile, the world's largest copper producer, mined just 369,500 tonnes in August, its lowest monthly output since February 2011. Storms and falling ore grades are squeezing supply in a market that is already tight.
At a glance
- Chile's August copper output fell 12.8% from a year earlier to 369,500 tonnes, government data showed.
- The drop deepened July's 9.4% fall, when output was 403,424 tonnes.
- Output from January to July was already down 7.1% on the year.
Background
Chile produces more copper than any other country, so its monthly output figures from the national statistics agency, INE, are closely watched. Ore grade is the share of copper in the rock that is mined. As mines age, grades usually fall, so miners must process more rock to produce the same amount of metal.
What happened
Chile's copper production fell 12.8% year on year in August to 369,500 tonnes, the statistics agency INE said. That is the lowest monthly output since February 2011.
The fall deepened a slide that was already under way. July output dropped 9.4% to 403,424 tonnes, and production from January to July was 7.1% lower than a year earlier.
Why output is falling
Weather and geology are both to blame. Storms in July and August halted mining operations and disrupted ports. At the same time, ore grades keep sliding. BHP said the grade of ore fed to its Escondida mill fell to 0.90% from 1.02%.
State miner Codelco is under particular strain. Its output fell 11% in the first half of 2026 to 564,000 tonnes. It has also suspended the Andes Norte expansion at its El Teniente mine for two years because of seismic risk. High prices have softened the blow, lifting Codelco's first-half pre-tax profit to $1.97 billion from $429 million.
What it means
The shortfall adds to supply worries in a copper market where tightness was already showing. Copper hit a record on the Comex exchange in September, when the December contract reached $6.873 a pound. Cochilco, Chile's copper commission, forecast full-year output of 5.27 million tonnes, a 2.6% decline, before August's slump.
For India, which relies on imported copper concentrate and refined metal, weaker Chilean supply tends to show up in higher LME and MCX prices. Wire, cable and electrical equipment makers feel that first, since copper is their main raw material.
Our read
Outlook: bullish. Falling output from the largest producer tightens an already thin market and supports prices. Weaker demand in China is the main risk to that view.
What to watch
- Chile's September production figures, to see whether output recovers after the storms.
- Any revision by Cochilco to its 5.27 million tonne forecast for the year.
- Labour disputes at Chilean mines, including the strike threat at Centinela.
For information only, not investment advice.
Copper price in India
metalscost.com India reference price as of 2026-10-03.
Detailed analysis
Timeline
- 2026-09-30: INE reports August copper output down 12.8% year on year.
Supply Drivers
Falling ore grades, such as Escondida's drop to 0.90% from 1.02%, cut output even when mines run normally.
Mining Production
Chile's August output of 369,500 tonnes was its lowest since February 2011, down 12.8% on the year.
What could lift prices
- The world's largest producer is mining less copper month after month.
- Ore-grade declines are structural, so lost output will not simply return when the weather clears.
What could weigh on prices
- Part of the drop came from storms, so output could recover in the coming months.
- Weak Chinese demand could offset tighter supply.
Country impact
| Country | Impact | Reason |
|---|---|---|
| Chile | High | Lower copper output cuts export earnings and state revenue from Codelco. |
| India | Medium | Tighter global supply tends to raise MCX copper prices for Indian manufacturers. |
Industry impact
| Industry | Effect | Reason |
|---|---|---|
| Copper Mining | Negative | Chilean miners are producing less as storms and lower grades bite. |
| Wire and Cable Manufacturing | Negative | Tighter copper supply raises the cost of their main raw material. |
Who gains, who loses
- Copper producers outside Chile: They sell into a tighter market with firmer prices.
- Codelco: Its Andes Norte expansion at El Teniente is on hold for two years because of seismic risk.
Other ways this could play out
- If output rebounds in September as storm damage clears, the supply scare could ease quickly.
- If a strike at Centinela adds to the shortfall, Chilean supply could stay weak through the year.
Price risks
- A slowdown in Chinese manufacturing would weaken demand faster than Chilean supply recovers.
- Higher output from other producers could fill part of the gap.
Historical comparison
- February 2011: The last time Chile's monthly copper output was as low as August 2026's 369,500 tonnes.
Technical view
Price is mixed relative to its 20-period and 50-period moving averages, showing no clear trend alignment.
Computed from metalscost.com's own stored price history.
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