The industrial world's conductor: wire, motors, grids and plumbing all run on it.
Copper has the highest electrical conductivity of any industrial metal (only silver conducts better), which is why most of it ends up in wire and cable, motors, transformers and grid equipment, with the remainder in plumbing, heat exchangers and brass and bronze alloys. World mine output is about 23 million tonnes of contained copper a year, and refined output about 29 million tonnes; refined figures are higher because they include metal recovered from scrap. In November 2025 the United States added copper, lead and silver to its list of critical minerals, a sign of how central the metal has become to electrification policy.
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Designations are indicative equivalents. Always confirm the exact standard, edition and temper or form on the purchase order and the mill certificate.
Chile and the Democratic Republic of the Congo together mine about 37% of the world's copper. Indonesia's output fell by nearly a third from 2024 (1.01 Mt to 0.71 Mt), and USGS notes that US output was held back in 2025 by concentrator shutdowns and lower ore grades at several mines. Source: USGS Mineral Commodity Summaries 2026.
USGS estimates world copper reserves at about 980 million tonnes, which at today's mining rate is roughly 43 years of supply. Chile holds the most (180 Mt), followed by Australia (100 Mt, or 27 Mt on the stricter JORC reporting basis), Peru (85 Mt), Congo (Kinshasa) and Russia (80 Mt each) and Mexico (53 Mt). Reserves are a moving figure that rises with exploration and price, so 43 years is a snapshot, not a deadline; the more useful signal is that new supply increasingly comes from lower-grade ore and from jurisdictions with higher political and permitting risk.
Copper refining is far more concentrated than mining. China refines about 14 Mt of the world's ~29 Mt of refined copper (roughly 48%), against about 8% of mine output, which makes it by far the largest buyer of imported concentrate. Other large refiners are Congo (2.8 Mt), Chile (1.7 Mt), Japan (1.4 Mt), Russia (0.95 Mt), the United States (0.85 Mt) and India (0.62 Mt). The route is concentrate to smelter (matte, then blister or anode) to electrorefining to LME-grade cathode. Smelters that buy concentrate on the open market, rather than from their own mines, are called custom smelters, and their margin is the treatment and refining charge covered under How it trades.
Scrap is a large and growing source of copper. In the United States, USGS estimates scrap supplied about 30% of copper supply in 2025, with about 160,000 t from old (post-consumer) scrap and 760,000 t from new scrap generated by fabricators. Industry bodies put the global figure at around a third of demand when direct-melt scrap is included. Copper is one of the few metals that loses essentially nothing in recycling, so scrap competes directly with concentrate for smelter and refinery capacity, and scrap prices track LME copper closely.
India is a large copper refiner and a very small copper miner: USGS estimates 23,000 t of mine output in 2025 against about 620,000 t of refined production. The gap is filled by imported concentrate processed at port-based custom smelters: Hindalco's Birla Copper at Dahej in Gujarat (about 500,000 t/yr, with a 300,000 t expansion announced), Vedanta's Silvasa refinery (about 216,000 t/yr; its Tuticorin smelter has been shut since 2018), and Adani's Kutch Copper at Mundra, whose first unit has been commissioned (phase I is rated at 500,000 t/yr). Hindustan Copper is the only significant domestic miner. For Indian buyers this means copper cathode pricing follows LME plus import parity, and concentrate availability and treatment charges matter to Indian smelter economics.
Copper trades at three stages. Concentrate (typically 25-30% copper) is sold to smelters and priced off the LME copper price, less the treatment and refining charge (TC/RC) and a deduction for metal that is not paid for, with penalties for impurities such as arsenic. Refined cathode, the LME deliverable (min 99.99% Cu), is priced at LME plus a regional premium that reflects freight, duties and local tightness. Semi-finished products (wire rod, billet, cake, tube) are priced at cathode plus a fabrication premium.
The annual benchmark TC/RC is the best single indicator of how tight concentrate is. For 2026 Antofagasta agreed terms of $0 per tonne and 0 cents per pound with a Chinese smelter, the first zero settlement on record, against $21.25 per tonne and 2.125 cents per pound for 2025; spot charges moved negative during 2026. Smelters are in effect paying miners for concentrate, which squeezes custom smelters, so the Indian port-based smelters, which buy concentrate on the open market, are directly exposed to this number.
On price: USGS estimates COMEX copper averaged a record of about $4.80 per pound in 2025, 14% above 2024, attributed mainly to uncertainty over US tariffs on copper imports. Buyers sourcing physical copper should treat exchange price, regional premium and currency as three separate exposures.
For copper, the cathode price is only part of the cost. Check the form (cathode, rod, billet or scrap), the regional premium in the contract, and whether the supplier can show the LME-registered brand or an independent assay. For concentrate, the TC/RC and penalty terms usually matter more than the headline metal price.
Talk to a SpecialistProduction and reserve figures are USGS estimates for 2025 unless stated. Figures are rounded and change with each annual revision.