Chilean Copper Mine Workers Vote to Strike as Copper Prices Approach Record Highs
nashnova research
Workers at Antofagasta's Centinela copper mine rejected the final wage offer, raising the prospect of a strike just as global refined copper supply remains tight — LME three-month copper hit $14,438 per tonne, and Deutsche Bank sees a possible surge past $22,000 within six months.
Why can one mine vote move the copper price?
Workers at Antofagasta's Centinela mine in Chile overwhelmingly rejected the company's final wage proposal, sharply raising the odds of a strike.
This means → Chile is one of the world's largest copper producers. A single major mine going offline tightens ore supply at the source, and the price reacts immediately.
LME three-month copper rose 0.2% to $14,438 per tonne, near the record set earlier this month and on track for a third straight monthly gain.
How tight is copper supply right now?
Treatment charges — TC, the fee smelters charge miners to turn ore into refined metal — have plunged to negative $267.40 per tonne, according to Fastmarkets.
In plain terms = a negative TC means smelters are effectively paying to secure ore. That signals a severe shortage of raw material at the mine end.
China's Yangshan copper premium — a key gauge of import demand — is near its highest level since 2022. This reflects Chinese buyers bidding up prices to secure cargoes.
Are US stockpiling and tariff expectations making it worse?
Large volumes of refined copper have been stockpiled in US warehouses as the market expects the Trump administration to impose tariffs on copper imports.
This means → buyers are front-loading purchases before tariffs land, further draining the pool of globally tradeable copper.
Copper has rallied roughly 8% this quarter, with physical-market tightness showing no sign of easing.
Why is Deutsche Bank calling for $22,000?
Deutsche Bank said in a research note that copper could rise more than 50% within six months, breaking through $22,000 per tonne.
The core logic: buyers are competing ever more fiercely for available metal — mine-side shortages on the supply end and tariff-driven hoarding on the demand end are squeezing prices from both directions.
In plain terms = there is only so much copper. More buyers want it. The price can only go up.
Are other metals following copper — or diverging?
Aluminium, zinc, and lead prices rose, while nickel and tin were roughly flat — not every metal is riding copper's wave.
Iron ore fell for a seventh straight session, dropping 0.7% to $94.20 per tonne in Singapore, on track for its lowest close since early August.
This reflects that copper's strength stems mostly from its own supply-demand squeeze, not a broad metals rally.
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