Copper: The Critical Metal Behind the Digital Economy

Copper is a base metal valued for its electrical and thermal conductivity, ductility and resistance to corrosion. It is mined as ore, concentrated, smelted and refined into 99.99 percent pure cathodes, then drawn into wire, rod and tube for power grids, buildings, vehicles, electronics and industrial machinery. World mine production was about 23 million tonnes in 2025, and no other material can replace copper at scale in electrical applications.

What copper is

Copper (chemical symbol Cu) is the most electrically conductive metal after silver, and far more abundant and affordable. That combination has made it the default conductor of the electrical age. It is also antimicrobial, fully recyclable without loss of quality, and alloys readily into brass and bronze.

According to the Copper Development Association, copper and copper alloy products in the United States are used in building construction (42 percent), electrical and electronic products (23 percent), transportation equipment (18 percent), consumer and general products (10 percent) and industrial machinery (7 percent) [1].

How copper is produced

Copper reaches the market through a long industrial chain. Each stage adds value, requires capital and creates a distinct kind of ownership claim.

1. Exploration and resource definitionGeologists identify a deposit and drill it to estimate tonnage and grade. Estimates are reported under codes such as NI 43-101 or JORC, which classify material as inferred, indicated or measured resources and, once economics are demonstrated, as probable or proven reserves.
2. MiningMost copper comes from large open-pit porphyry deposits at ore grades often below 1 percent copper; underground mines serve deeper or higher-grade bodies. Average ore grades have declined for decades, so more rock must be moved for every tonne of metal [3].
3. ConcentrationOre is crushed, ground and processed by flotation into copper concentrate containing roughly 25 to 35 percent copper. Concentrate is the first tradeable product and is sold to smelters under long-term contracts with treatment and refining charges.
4. Smelting and refiningSmelters convert concentrate to anode copper; electrolytic refineries produce copper cathode at 99.99 percent purity. Oxide ores follow a different route through leaching and electrowinning that also yields cathode.
5. Cathode and semi-fabricationCathode is the deliverable form on the London Metal Exchange (LME) and CME Group's COMEX. Cathodes are cast into rod, drawn into wire and rolled or extruded into tube, sheet and strip.

Where copper is produced

World mine production was an estimated 23 million tonnes in 2025 and refined production about 29 million tonnes, according to the U.S. Geological Survey. Chile remained the largest miner at 5.3 million tonnes, followed by the Democratic Republic of the Congo at 3.2 million tonnes, Peru at 2.7 million tonnes, China at 1.8 million tonnes and Russia at 1.3 million tonnes. The United States mined about 1.0 million tonnes [1].

Refining is far more concentrated than mining. China refined an estimated 14 million tonnes in 2025, close to half of the world total [1]. The IEA notes that China accounts for just under 50 percent of global copper refining [2]. Identified world reserves stand at about 980 million tonnes, with identified resources of 1.5 billion tonnes of unextracted copper and an estimated 3.5 billion tonnes of undiscovered copper [1].

Why demand keeps rising

Every major technology of the next two decades is copper-intensive.

• Power grids and transmission. Grids must be expanded and reinforced to connect new generation and new load; copper is the conductor in cables, transformers and switchgear.
• Electrification and renewable energy. Wind, solar and battery storage installations use more copper per megawatt of capacity than thermal plants because of collection wiring, inverters and grid connections.
• Electric vehicles. EV motors, batteries, inverters and charging infrastructure require substantially more copper than combustion vehicles.
• AI data centers and computing infrastructure. The IEA projects that data center electricity demand will more than double to around 945 TWh by 2030, and every megawatt of that capacity needs copper in transformers, busbars, cabling and cooling [4].
• Industrial infrastructure and construction. Building wiring, plumbing and HVAC remain the largest single end use in advanced economies [1].

The IEA's Global Critical Minerals Outlook 2026 records copper as the mineral with the largest absolute demand growth, adding about 7 million tonnes of annual demand by 2040, driven by electricity networks and next-generation technologies [2].

Why supply cannot keep pace

Copper supply is not short of geology. It is short of time, capital and grade.

• Development timelines. Moving a mining project from discovery to first production has taken 16.5 years on average, according to the IEA [3]. S&P Global finds that mines that started production between 2020 and 2023 took 17.9 years on average, up from 12.7 years for mines started between 2005 and 2009 [5].
• Declining grades. The average copper ore grade in Chile fell by about 30 percent over the fifteen years to 2021 [3]. Lower grades mean more energy, water and capital per tonne of metal.
• Capital intensity. The IEA estimates that copper alone requires about USD 310 billion of mining and refining investment by 2040 under stated policies, the largest share of any energy mineral [2].
• The supply gap. On the current project pipeline, the IEA projects that supply from existing mines and announced projects will fall roughly 25 percent short of expected demand by 2035 [2].

In November 2025 the United States added copper to its official List of Critical Minerals for the first time, recognizing its role in the economy and the vulnerability of its supply chain [1]. The U.S. net import reliance for refined copper reached an estimated 57 percent of apparent consumption in 2025 [1].

Copper markets today

Refined copper is priced by reference to exchange benchmarks: the LME Grade A cash price and the COMEX high-grade contract. Physical trade settles at those references plus regional premiums that reflect freight, financing and local availability. Concentrate, blister and scrap trade under separate contract terms. The COMEX price averaged a record USD 4.80 per pound in 2025, up 14 percent from 2024 [1].

Behind the screen prices, however, copper still changes hands through bilateral contracts, letters of credit, warehouse warrants and paper title. Ownership records are fragmented across producers, traders, banks, warehouses and buyers, and settlement of a physical cross-border cargo can take days or weeks. Capital for new mines is negotiated project by project with a small set of banks, royalty funds and offtakers.

Why Toto Finance starts with copper

Copper is the commodity where the gap between physical importance and financial infrastructure is widest.

1. The asset is verifiable. Cathode is a standardized, assayed, exchange-deliverable product. Reserves are reported under recognized codes. Verification, the first requirement for tokenization, is already an established discipline.
2. The market is large and liquid. Transparent benchmark prices exist on two global exchanges, which gives tokenized copper reliable pricing references.
3. The financing problem is acute. Long lead times and rising capital costs leave viable projects unfinanced. Connecting reserves and future production directly with capital is a structural, not cyclical, need.
4. Demand is broad-based. Copper serves grids, vehicles, buildings and data centers across every economy, which supports durable industrial demand for physical delivery.

Toto Finance aims to connect copper reserves, future production and refined supply with digital capital markets through verified digital ownership, programmable financing and settlement infrastructure. Tokenized copper explains the mechanics; products describes Copper Now, Copper in Future and Copper Yield; commodity financing covers how producers can use it.