The copper price has spent the spring climbing the wall AI built. LME copper traded in the $13,900 to $13,966 area this week, just off the $14,097 peak set on May 13 (commodity coverage of LME pricing, June 2026). The fuel mix is familiar by now: hyperscaler grid wiring, transformer and substation copper, and a Chilean supply curve that keeps disappointing. What changed in the last two weeks is who is positioned to sell into the squeeze, and Vale is no longer hiding the answer.

What is happening

Chile’s April production fell 13.8 percent year on year to 399,954 tonnes, following a 9 percent decline in March, according to data summarised by Trading Economics from Cochilco’s monthly bulletins. February 2026 was already the country’s weakest monthly print in nearly nine years at 378,554 tonnes. The rolling twelve-month series has now declined for seven consecutive months. Cochilco raised its 2026 average copper price forecast to $5.55 per pound on May 19 and projected national output to fall about 2 percent this year to 5.3 million tonnes before recovering to 5.5 million tonnes in 2027 (Cochilco via Kitco, 2026-05-19).

Forecasters disagree about the balance. The International Copper Study Group see a refined deficit of about 150,000 tonnes this year, though it revised that to a 96,000-tonne surplus in April 2026. J.P. Morgan models a tighter 330,000 tonne deficit. Goldman Sachs Research models LME copper reaching roughly $15,000 per tonne by 2035 and attributes the medium-term pull to AI infrastructure, which the bank expects to drive a 165 percent increase in data center power demand by 2030 (Goldman Sachs Research, 2026). The IEA expects data center power demand to more than double to roughly 945 TWh per year by 2030 and warns the project pipeline could leave the copper market short of supply by 30 percent by 2035 (IEA commentary, 2026).

Brazil angle

Vale’s first-quarter copper production landed at 102.3 thousand tonnes, up 13 percent year on year, on what the company called record performance at Salobo and Sossego. Group guidance for 2026 sits at 350 to 380 thousand tonnes (Vale Q1 2026 report). Capex follows the conviction: roughly $300 million committed to Carajá in 2026 and $3.5 billion planned for 2026 through 2030 to advance copper growth projects, including the Bacaba mine. The Vale Base Metals subsidiary disclosed in March that its copper reserves and resources grew 6 percent to 53 million tonnes after the 2025 exploration campaign, with drilling intensity in Brazil’s Carajás District set to double again this year (Vale Base Metals 2025 exploration release, 2026-03-31).

The bigger structural move is the IPO. Chief executive Shaun Usmar is pulling forward the Vale Base Metals listing timeline, with mid-2026 cited as the readiness target and a likely market window late 2026 or early 2027 (industry coverage of CEO commentary, May 2026). Industry estimates put the unit’s valuation near $40 billion. The capital program contemplates copper rising from about 350 thousand tonnes a year today to 900 thousand tonnes, and nickel from 175 thousand to over 300 thousand. Vale owns 90 percent and Manara Minerals, the joint venture between Saudi Arabia’s Ma’aden (51 percent) and the Public Investment Fund (49 percent), owns the remaining 10 percent after closing a binding agreement signed in July 2023 with a roughly $2.5 billion investment in April 2024 at an implied enterprise value of about $26 billion (PIF and Cleary Gottlieb release, 2024). That is the only major Western copper expansion ready to absorb fresh public capital at the exact moment Chile rolls over.

United States angle

Hyperscaler wiring demand is now showing up in long-dated power contracts as much as in copper futures. Constellation signed a 20-year power purchase agreement with Meta in June 2025 for the entire output of the 1.121 GW Clinton Clean Energy Center in Illinois, with delivery commencing in June 2027 (Constellation press release, June 2025; Data Center Dynamics, 2025). Amazon Web Services expanded its Susquehanna arrangement with Talen Energy in June 2025 to up to 1,920 MW at full contract quantity, delivered in steps (840 to 1,200 MW from 2029 and 1,680 to 1,920 MW from 2032) and running through 2042 with extension options, transitioning the load to a front-of-the-meter retail structure with Talen as the licensed retail supplier and PPL Electric as the transmission delivery utility (Talen investor release, 2025-06-11; Utility Dive, 2025). Each gigawatt of new firm load carries kilometres of copper through substations, transformers, and rack-level distribution. US warehouse stocks themselves tell the inventory story: copper held in US warehouses surged more than 300 percent during 2025 to roughly 400,000 tonnes as buyers front-ran the tariff uncertainty (commodity coverage citing CME and warehouse data, 2026).

China angle

The Chinese position is moving from offtake to ownership of the copper that diversifies away from Chile. CMOC’s combined DRC copper production reached about 741,100 tonnes in 2025, with the Tenke Fungurume mine running above its 450 thousand tonne nameplate across five production lines and the Kisanfu mine adding more than 200 thousand tonnes. National DRC copper output is forecast to grow about 6 percent in 2026 to 3,404.1 thousand tonnes as Kamoa-Kakula and TFM normalise (CMOC 2025 interim and full-year disclosures; Mining Technology analyst commentary, 2026). The new wrinkle is structural: Gécamines is exercising its right to purchase about 100,000 tonnes of TFM’s 2026 production, roughly 20 percent of mine output, aligned with its equity stake. Separately, the DRC has stated plans to direct 100,000 tonnes of copper to the United States, a state-led marketing layer that overlays the Chinese operator (Mongabay reporting, January 2026). The pattern matches what Beijing has been doing in rare earths: ownership and offtake decoupled, with state intermediaries skimming a margin and a strategic option on direction of flow.

What it means

This is no longer a story about whether the AI buildout needs more copper. The IEA, Goldman Sachs, J.P. Morgan, the ICSG, and the LME tape all converge on yes. It is now a story about who books the upside. Chile’s output rolls over while its 2026 price forecast keeps rising. Vale is the cleanest Western expansion play and is openly preparing to sell shares against it. CMOC keeps the African production but is sharing the volume with Gécamines. For Brazil specifically, the next eighteen months should resolve the question of whether the country can convert its geological copper inventory into a listed, capitalised, and globally indexed asset. SDX exposure to VALE inside Tantalum’s Southern Diversification Index sits on the right side of that thesis.

What to watch

The desk’s three indexes read this moment as follows. TAI is being pulled up by TAI-M, with copper doing most of the work. SOV50 is rising on the concentration premium even though copper itself is not a SOV50 constituent, because the concentration story (Chile fade, DRC state participation) reads as a sovereignty event. SDX should be the obvious beneficiary if VALE separates, though year-to-date it sits at 98.2 against TAI at 105.7 (Tantalum indexes, week of 2026-05-22). That gap is the trade the next two quarters will judge.