Copper LME Slips Below $14,000 as Inventories Drain, but ICSG-Bank Divide Widens on Supply

London Metal Exchange (LME) copper traded at approximately $13,880 per tonne on July 25, down roughly 4.5% from early-June levels above $14,500. The decline has been orderly rather than panicked, driven by profit-taking after the record-setting rally of January through May and a seasonal slowdown in Chinese physical buying. COMEX copper held firmer at $6.33/lb ($13,960/t equivalent), with the transatlantic arb widening as US tariff-driven tightness deepens.

The physical market is tightening visibly. LME warehouse stocks dropped from 306,500 tonnes on July 10 to 284,175 tonnes by July 22, a net decline of 22,725 tonnes in under two weeks. More critically, cancelled warrants now stand at 177,025 tonnes, representing 62.3% of all LME stock. That is a near-record share indicating metal is being withdrawn from exchange warehouses at an accelerating rate. Accessible inventory is far tighter than the headline number suggests.

The supply-demand debate has become unusually polarized. On one side, ING Bank projects a refined copper deficit of roughly 600,000 tonnes in 2026, citing mine disruptions in Chile and Peru, smelter constraints, and the tariff-driven diversion of copper into US-bonded warehouses. Goldman Sachs corroborates the deficit view, estimating an ex-US market shortfall of 640,000 tonnes. On the other side, the International Copper Study Group (ICSG), in its April 2026 update, forecasts a 96,000-tonne surplus for 2026, widening to 377,000 tonnes in 2027, arguing that secondary production from scrap will surge as prices stay elevated and that demand growth is slowing to 1.6% globally.

The gap between these forecasts matters enormously for buyers. A 600,000-tonne deficit represents roughly 2.3% of global refined consumption, enough to drive prices significantly higher if exchange stocks continue falling. A 96,000-tonne surplus is noise. The answer likely lies in the details neither side fully captures: the banks' deficit models weight mine disruptions heavily (which are probabilistic) while the ICSG surplus assumes scrap response rates that may not materialize at current collection infrastructure levels.

Chinese demand, the traditional copper bellwether, is sending mixed signals. The official manufacturing PMI has held above 50 in recent months, but copper semis output growth has slowed to approximately 2% year-over-year, down from 5-6% in 2024. Grid investment remains robust, supported by Beijing's infrastructure push, but property construction continues to contract. The net effect is flat-to-slightly-positive demand growth, not the acceleration deficit bulls need for their thesis.

On the supply side, disruptions continue accumulating. Codelco's production in the first half of 2026 ran below guidance as grade decline at Chuquicamata and El Teniente persisted. BHP's Escondida produced at near-record rates but faces labor contract negotiations in August. In Peru, Las Bambas has operated intermittently due to community roadblocks. Concentrate treatment charges (TCs) remain near zero in China, confirming that miners, not smelters, hold the bargaining power.

Tariffs are creating a bifurcated market. The US 25% tariff on copper imports, plus the threat of further escalation toward the 50% level imposed on aluminum, has incentivized massive copper inflows into US warehouses. ING estimates over 500,000 tonnes of copper is now held in US-bonded storage, effectively removed from the global pool. This 'trapped' copper is the single largest distortion in the market. If tariff policy shifts or the US administration signals relief, the release of those stocks could crash premiums and drag LME prices lower within weeks.

Analyst views diverge sharply on the trajectory for the rest of 2026. Panmure Liberum's Tom Price sees copper drifting toward $12,500/t by Q4, arguing that Chinese demand is structurally weakening and that the tariff premium is unsustainable. Goldman Sachs maintains its $15,000/t target for year-end, pointing to exchange stocks that could hit critical lows by September if the current drawdown rate continues. Citi occupies the middle ground at $14,000-14,500/t average for H2, expecting the scrap response and mine restarts to prevent a blow-off top but not enough to flip the market into surplus.

The forward catalyst calendar is dense. August brings Escondida labor negotiations, which could remove 1.2 million tonnes of annual production from the market if talks fail. September marks the seasonal demand pickup in China after summer maintenance shutdowns. October is the deadline for the next US tariff review cycle. Each of these represents a binary risk event that could move prices $500-1,000/t in either direction.

What the splits in analyst forecasts reveal is a market genuinely uncertain about its own supply-demand balance. When the ICSG, a body funded by copper-producing governments, sees a surplus while banks with trading desks see a deficit, the divergence itself is a signal: this is a market where data quality is poor, non-transparent inventory (bonded warehouses, off-exchange stockpiles) is vast, and no single institution has a complete picture. Buyers operating on any single forecast are taking unrecognized risk.