LME copper continued its uneasy equilibrium above $13,200/mt in the final week of June, capping a volatile first half of 2026 in which the metal touched a record $13,387/mt on January 6 before spending most of the second quarter oscillating between $12,800 and $13,500. The 3-month closing price of $13,287/mt on June 28 represents a 26% premium over the same date in 2025 and keeps copper firmly in the top quintile of its 10-year real price range. COMEX copper, at $6.207/lb, is up 2.25% on the session, while SHFE copper at ¥106,510/mt reflects a 2.1% gain driven by lingering optimism around China's infrastructure stimulus.
The fundamental narrative shifted significantly in June. The International Copper Study Group's latest assessment, released during its biannual Lisbon meeting, now projects a 150,000-tonne refined deficit for 2026 — a sharp reversal from its earlier forecast of a 209,000-tonne surplus. The revision reflects two forces pulling in opposite directions: mine supply is growing (ICSG expects +2.5% global mine output in 2026, driven by Kamoa-Kakula ramp-up, Oyu Tolgoi expansion, and recovery in Chile and Zambia), but refined production growth is collapsing as concentrate availability tightens. The ICSG now sees refined output declining 1.5% in 2026, largely because smelters cannot secure enough feedstock at viable economics.
The concentrate market is in crisis by any measure. Spot treatment and refining charges (TC/RCs) for 26% clean copper concentrate hit -$46.40 per dry ton in late 2025 — the first negative TC/RC in history — and have since deteriorated further. S&P Global reported spot TCs at approximately -$70/t by late March 2026. The 2026 annual benchmark, settled between Chile's Antofagasta and China's leading smelters, was set at $0/ton, marking what the industry now calls the 'zero processing fee era.' Chinese smelters, which process more than half the world's copper, are squeezed between collapsing treatment revenue and rising operating costs. Sulfuric acid by-product credits have partially offset the damage, but the economics are unsustainable. The industry has initiated 'anti-internal competition' measures — a coordinated signal that capacity rationalization is coming unless the concentrate supply picture improves.
On the demand side, the picture is more nuanced than the headline deficit suggests. The ICSG cut its 2026 refined copper usage growth forecast from 2.7% to 1.8%, with China's growth dropping to just 0.8% — effectively flat for the world's largest consumer. Goldman Sachs Research estimates that Chinese refined copper consumption fell 8% year-on-year in Q4 2025 alone, as the boost from stimulus policies and tariff front-loading faded. Property and appliance demand remain weak. But grid investment, electric vehicle production, and data center construction are providing structural support. A Chinese research note estimated that data centers alone could add 200,000-300,000 tonnes of incremental copper demand annually by 2028. The net result is a demand picture that is weak at the headline level but concentrated in high-growth electrification sectors that happen to be copper-intensive.
US tariff policy remains the dominant exogenous variable. The Section 232 investigation into copper imports, launched in 2025, triggered an estimated 600,000 tonnes of cathode stockpiling inside the United States as buyers and traders pre-positioned metal ahead of potential duties. This 'suction effect' physically redirected cathode flows away from Asia, tightening spot availability for Chinese smelters and inflating the COMEX premium over LME to record levels. The 50% tariff on semi-finished copper products took effect on August 1, 2025, but the bigger question — whether refined copper imports will face a separate tariff — remains unresolved. Goldman Sachs expects the US Commerce Secretary to recommend at least a 25% tariff on refined copper by mid-2026. If implemented, the tariff would lock in the COMEX premium structure; if delayed or abandoned, the unwind of US stockpiles could release 600,000+ tonnes back onto the global market, pressuring LME prices downward.
Mine supply disruptions continue to constrain the system. Chile's output fell by approximately 210,000 tonnes in 2025 versus 2024, while Peru's production also declined modestly. Indonesia's higher export tariffs on copper concentrate reduced seaborne shipments by 3.2% year-on-year as some capacity redirected to domestic smelters. The Grasberg and Kamoa-Kakula mines both experienced unplanned disruptions that, according to industry analysts, removed at least 150,000 tonnes of contained copper from 2025 supply. S&P Global estimates that copper stripping ratios hit 1.79-to-1 in 2025 — a measure of declining ore grades that signals rising extraction costs and lower recovery rates across the industry's aging mine fleet.
Analyst views diverge on where copper goes from here. Goldman Sachs Research maintains a $10,000-$11,000/mt range for LME copper through 2026, arguing that a 160,000-tonne surplus (per their modeling) prevents sustained prices above $11,000 and that the unwinding of the tariff-driven stockpile will eventually loosen the physical market. At the other end, S&P Global's base case sits at approximately $12,100/mt average for 2026, with the view that concentrate tightness will eventually force smelter curtailments and tighten the refined balance regardless of demand growth. Reuters' consensus survey of bank analysts clusters around $10,500/mt for the 2026 average, with a bullish tail rising to $12,500 if mine disruptions deepen. PricePedia projects an LME trading range of $10,800-$12,000/mt for the year. The disagreement is fundamentally about whether the concentrate bottleneck translates into refined scarcity before US stockpiles unwind — and no one has a clear answer.
For the week ahead, the market's attention is fixed on three catalysts: first, any signal from the US Commerce Department on the refined copper tariff recommendation (due by mid-2026 per the Section 232 timeline); second, LME inventory data, which has shown four consecutive weekly draws at time of writing and sits at elevated levels above 350,000 tonnes but declining; and third, Chinese PMI data due in the first week of July, which will confirm or challenge the narrative of stabilizing industrial demand. The copper market in late June 2026 is not expensive relative to its own supply cost curve — S&P Global estimates the 90th percentile of the global copper cost curve at approximately $8,500/mt — but it is expensive relative to a global economy that is slowing. The resolution of that tension will define the second half of the year.
Copper buyers face a market that is expensive and likely to stay that way through 2026. The concentrate bottleneck is structural — mine development timelines stretch to 20-25 years, meaning the supply response to current prices will not materialize until the early 2030s. This is not a short-term squeeze; it is a multi-year tightening cycle. Procurement strategy should prioritize three things. First, secure annual contract volumes now, before smelter curtailments reduce refined output. The TCRCs at zero mean smelters are losing money on every ton they process from spot concentrate; capacity cuts are not a question of if but when. Second, hedge Q3 and Q4 exposure. The $10,000 floor that analysts cite is credible given the cost curve, but the upside risk from a tariff announcement or a major mine disruption could push copper to $13,500-$14,000 in a matter of days. A simple collar structure — buy a $13,500 call, sell a $10,500 put — would protect against both tails. Third, diversify cathode sourcing away from US-exposed supply chains. The COMEX premium over LME has widened again, and any refined copper tariff would lock in that spread. Asian and South American cathode, priced off LME, offers a material discount. If you have storage capacity, build a 4-6 week buffer inventory now — the physical market tightens sharply when LME stocks draw, and the current downward trend in LME inventories suggests that moment is approaching.