Origins — Chile and Peru
The corridor that sets the copper price.
Two countries, one geological province, and the single most important origin for the metals desk. What is bought here is usually concentrate, and concentrate is priced on what gets deducted.
- Share of world mined copper
- More than a third
- Typical mine altitude
- 3,000 – 4,600 m
- Atacama lithium brine
- Lowest cost on earth
- New projects' water source
- Desalinated seawater
Overview
A copper story with everything else attached.
The Andean corridor is a copper story with everything else attached to it. Molybdenum, silver, gold and zinc out of Chile and Peru are by-product credits inside a copper mine's economics, which means their availability follows the copper cycle rather than their own.
Head grades have fallen across the corridor for two decades. The response has been more tonnes moved, more energy consumed and seawater desalinated at the coast and pumped four kilometres uphill. That cost sits inside the incentive price for any new supply, and it is the reason a copper deficit does not resolve quickly.
What we buy here is concentrate more often than metal, and concentrate is not priced at the exchange. It is priced as contained metal at a payable percentage, less treatment and refining charges, less penalties. A clean cargo and an arsenic-bearing cargo at the same grade are two different commercial propositions.
Metals desk
Copper, in concentrate and in cathode.
Chile and Peru together account for more than a third of mined copper. The corridor supplies both forms: SX-EW cathode produced on site from oxide ore, and sulphide concentrate shipped to smelters in China, Japan, Korea and India.
Concentrate value is contained copper at an agreed payable — typically around 96.5% subject to a minimum deduction — less a treatment charge per dry tonne and a refining charge per payable pound. Those charges are negotiated against the annual benchmark and traded on the spot market, and the two diverge sharply through the cycle.
Arsenic is the corridor's defining technical problem. Deeper Chilean ore carries more enargite, and smelters cap arsenic in their feed. High-arsenic material is blended down, sold to the few smelters equipped for it, or discounted heavily. Anyone quoting Andean concentrate on grade alone is quoting half the cargo.
Metals desk →| Mine | Location | Operator and character |
|---|---|---|
| Escondida | Antofagasta, Chile | BHP with Rio Tinto — the largest copper mine in the world, concentrate and cathode |
| Collahuasi | Tarapacá, Chile | Anglo American and Glencore — high-grade concentrate at altitude |
| El Teniente | O'Higgins, Chile | Codelco — the largest underground copper mine, moving to new block caves |
| Chuquicamata and Radomiro Tomic | Antofagasta, Chile | Codelco — the historic pit, now converted to underground |
| Los Pelambres and Centinela | Coquimbo and Antofagasta, Chile | Antofagasta plc — concentrate on desalinated water supply |
| Quebrada Blanca | Tarapacá, Chile | Teck — the corridor's largest recent greenfield expansion |
| Antamina | Ancash, Peru | BHP, Glencore, Teck and Mitsubishi — copper-zinc, with silver credits |
| Cerro Verde | Arequipa, Peru | Freeport — concentrate and cathode into Matarani |
| Las Bambas | Apurímac, Peru | MMG — concentrate trucked the mining corridor, with recurrent blockade risk |
| Quellaveco | Moquegua, Peru | Anglo American — the newest large mine on the corridor |
Metals desk
The metals that arrive whether or not you wanted them.
Molybdenum, silver, gold and zinc out of this corridor are produced because copper is produced. That makes their supply curve inelastic to their own price and unusually sensitive to somebody else's, which is a useful thing to understand before taking a view on any of them.
Peru is a top-tier silver producer almost entirely through polymetallic and copper by-product streams. Precious metal credits are payable above threshold grades in the concentrate contract, so silver and gold content changes the value of a copper cargo without ever being sold as a separate parcel.
Chilean molybdenum leaves as concentrate or as roasted technical oxide from the state and private copper operations, and it prices in a thin market where a single mine's output matters.
Metals desk →| Material | Form | Where it comes from |
|---|---|---|
| Molybdenum | Concentrate and technical oxide | Codelco and Antofagasta operations — by-product of Chilean porphyry copper |
| Silver | Payable credit in concentrate | Antamina and the Peruvian polymetallic belt; Peru is a top-tier producer |
| Zinc | Concentrate, 50% Zn typical | Antamina and Peruvian polymetallic mines |
| Gold | Doré and payable credit | Yanacocha and Peruvian copper-gold streams |
| Iodine and nitrates | Caliche ore | Northern Chile — the origin of the majority of world iodine supply |
Minerals desk
Lithium that is pumped rather than mined.
Salar de Atacama brine is the lowest-cost lithium in the world and it is produced by a process that looks nothing like mining. Brine is pumped into evaporation ponds and concentrated by the sun over twelve to eighteen months before conversion to carbonate or hydroxide.
The consequence is a supply curve that cannot respond quickly. A price signal today reaches the market well over a year later, which is why brine lithium amplifies rather than dampens the cycle.
Chile does not run an open concession regime for lithium. New salar development goes through state-controlled structures, which makes any Chilean lithium position partly a position on public policy. Argentine brine next door operates under a materially more open regime, and that contrast is the main reason new capital has gone east.
Minerals desk →| Asset | Form | Structure |
|---|---|---|
| Salar de Atacama — SQM | Brine, carbonate and hydroxide | The largest single lithium operation, under a state-linked partnership structure |
| Salar de Atacama — Albemarle | Brine, carbonate | The second Atacama operator, on a separate quota |
| Maricunga and other salars | Brine, undeveloped | Development routed through state-controlled participation |
| Argentine salars | Brine, adjacent origin | Olaroz, Hombre Muerto and Cauchari — a more open regime, and where new capital went |
Regulation
What sits between the mine and the delivered cost.
The Andean corridor is a stable place to buy from and an expensive one. These are the terms and interruptions we price into a long-term offtake rather than discover during one.
- 01Chile — mining royalty
- An ad valorem component plus a margin-linked component, with a cap on the total burden a copper operation carries. It is stable and published, but it sits directly in the delivered cost of any long-term offtake and is checked when a term contract is priced.
- 02Peru — the mining corridor
- Concentrate from the southern Peruvian mines is trucked to Matarani along a road corridor that passes through communities with live land and benefit disputes. Blockades recur, they last weeks rather than days, and force majeure wording is drafted for that specifically rather than generically.
- 03Water and desalination
- New projects in northern Chile permit on desalinated seawater rather than continental water. That is now a permitting precondition, not a sustainability preference, and it changes both the capital cost and the political footprint of any expansion.
- 04Arsenic in concentrate
- Chilean smelting and emissions rules constrain how much arsenic can be processed domestically, and receiving smelters set their own feed caps. High-arsenic material is a blending problem with a commercial answer, and it is priced at offer rather than discovered at discharge.
- 05Chile — lithium participation
- Lithium is not developed under an ordinary concession. New salar capacity is structured through state-controlled participation, so a Chilean lithium offtake carries a counterparty that is partly a public body.
- 06Community consultation
- Both countries operate prior consultation obligations with indigenous and local communities. A permit granted without a durable community agreement behind it is a schedule risk rather than a settled approval, and we assess the agreement, not just the permit.
Execution
Down from altitude, out through the Pacific.
- Concentrate trucked down from altitude to Antofagasta, Mejillones, Matarani and Callao, in sealed containers or covered trucks to control dust and moisture
- Copper concentrate is an IMSBC Group A cargo — transportable moisture limit certification before loading, and rotainer or sealed handling to meet port dust rules
- Sampling and assay exchange at load, with the umpire laboratory named from an agreed panel in the contract
- Quotational period and the matching hedge agreed at contract, so the basis between purchase and sale is a decision rather than an accident
- Swell closures on the Peruvian coast and winter road closures in the Andes, both written into laycan
- Provisional invoicing against bill of lading, with final settlement on final weights, final assay and the quotational period average
Origination
Producers and smelters on the Andean copper corridor can reach the metals desk directly.