mineral · input

Electrolytic Copper (Conductor Grade)

High-purity copper (99.97%+ electrolytic grade, IACS conductivity ≥100%) used to wind transformer coils as continuously transposed conductor (CTC) or rectangular bus bar. A single large power transformer (300 MVA, 345 kV) contains 20–60 tonnes of copper. Transformer manufacturing is a major consumer of copper — alongside power cables and EV motors — amplifying supply competition.

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Source countries

5

Companies

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Goods affected

0

Claims on record

What depends on it

Goods that need this input

1 essential American goods rely on electrolytic copper (conductor grade) somewhere upstream in their supply chain.

Where it comes from

Source countries

Share of global supply, by country.

CountryShare of supply
CNChina40%
CLChile27%
PEPeru11%
AUAustralia6%

Who makes it

Supplier companies

5 companies produce electrolytic copper (conductor grade).

Jiangxi Copper Company Limited

HQ CN10% share

Jiangxi Copper Company Limited (SHEX: 600362, HKEX: 358, HQ Guixi City, Jiangxi Province; ~¥400B+ revenue) is China's largest integrated copper producer — mining, smelting, refining, and rod casting. Jiangxi Copper operates the Guixi Smelter (one of the world's largest copper smelters at ~1.4 million tonnes/year capacity) and major copper rod mills. Also a significant trader and importer of copper concentrates from Chile, Peru, and Australia. Jiangxi Copper's scale makes it a price-influencing player on the LME and SHFE copper markets. Rod production: ~800,000+ tonnes/year for domestic wire, cable, and electronics markets. State-controlled via Jiangxi Copper Corporation (parent) with significant provincial government ownership.

Codelco

HQ CL8% share

Codelco (100% Chilean state-owned; HQ Santiago; ~$15B revenue) is the world's largest copper producer and the operator of Chile's most iconic copper mines — Chuquicamata, El Teniente, and Andina — all in high-altitude Atacama Desert regions facing severe water stress. Codelco's mines collectively consume billions of liters of water per year from the Atacama's scarce freshwater resources (rivers, aquifers) that are simultaneously needed by indigenous communities (Atacameño people) and the Atacama's extreme-endemic ecosystem. Codelco is investing in seawater desalination and water recycling to reduce freshwater dependency under pressure from Chile's 2022 National Water Strategy and reformed Water Code, which tightened water rights allocation. Codelco's water sourcing decisions are intertwined with Chilean government policy — as a state-owned enterprise, Codelco's water use is both a commercial question and a public sovereignty question.

Freeport-McMoRan(FCX)

HQ US6% share

U.S. copper mining and smelting company (NYSE: FCX; HQ Phoenix, AZ; ~$23B revenue); largest publicly traded copper company in the world. Freeport operates copper mines in Arizona (Morenci — world's largest copper mine by production; Bagdad, Safford, Sierrita), New Mexico (Chino, Tyrone), Indonesia (Grasberg — world's largest single copper deposit), and Peru (Cerro Verde). Freeport refines copper into cathode via two pathways: (1) conventional smelting at its Miami, Arizona smelter (processes concentrate from Morenci and purchased concentrate), and (2) SX-EW (solvent extraction / electrowinning) cathode production directly from oxide ore at Bagdad AZ, Safford AZ, Chino NM, and Tyrone NM. Freeport also owns Atlantic Copper (Huelva, Spain — largest copper smelter in Europe by concentrate throughput) via its European subsidiary. Grasberg (Indonesia) is operated via PT Freeport Indonesia, a joint venture with the Indonesian government (51% ownership). Freeport is the largest single copper producer in North America.

Southern Copper Corporation

HQ MX5% share

Copper mining and smelting company (NYSE: SCCO; HQ Mexico City; ~$10B revenue); controlled by Grupo Mexico (77% stake). Southern Copper is the world's largest copper reserves holder and operates major mines and smelters in Mexico (La Caridad, Buenavista del Cobre — one of the world's largest copper mines) and Peru (Toquepala, Cuajone). SX-EW cathode production at Toquepala and Cuajone in Moquegua/Tacna, Peru. Southern Copper's Mexican operations include the IMMSA division (zinc/lead/copper refineries in San Luis Potosí). The company's La Caridad smelter in Sonora, Mexico is one of the largest copper smelters in the Americas. Southern Copper has a significant SX-EW cathode production footprint in Peru's southern copper belt.

Aurubis AG(NDA)

HQ DE4% share

European integrated copper group (SDAX: NDA, HQ Hamburg, Germany); world's largest copper recycler and one of Europe's largest copper smelters. After the September 2024 sale of its Buffalo, NY flat-rolled products site to Wieland, Aurubis exited the U.S. connector-strip market to concentrate on primary copper production, recycling, and multimetal recovery. Aurubis Hamburg remains a world-scale refinery (1M+ MT/year cathode output) and continues to supply copper cathode feedstock to strip rollers including Wieland's European facilities. Aurubis Pirdop (Bulgaria) is its primary copper smelter. The company also operates secondary smelters in Belgium (Lünen) and the UK (Swansea). Prior to divestiture, Aurubis Buffalo produced copper and copper alloy strip for electronic connectors, heat exchangers, architectural products, and electrical goods.