Goldman Sachs Copper Price Outlook Cut as 2026 Surplus Forecast Widens

Goldman Sachs

Goldman Sachs copper price outlook has been lowered for 2026 as the bank expects weaker demand growth from the Middle East energy shock to outweigh stable supply assumptions. The bank now forecasts the global refined copper market will record a 490,000t surplus in 2026, up from its previous estimate of 380,000t.

Goldman Sachs copper price outlook for average 2026 copper prices was cut to $12,650/t from $12,850/t. The revision reflects a downgrade in expected global refined copper demand growth to 1.6% from 2%, based on the assumed effect of higher energy prices on world economic growth.

Goldman Sachs copper price outlook remains volatile in the near term because markets are still assessing the impact of the Iran conflict and potential disruption around the Strait of Hormuz. The bank expects prices to average $12,700/t in the second quarter under its base case, before drifting toward a medium-term fair value near $12,000/t later in 2026.

Energy Shock Weakens Near-Term Copper Demand

The main driver of Goldman’s downgrade is weaker macroeconomic demand rather than a change in mine or refined supply assumptions. The bank assumes the energy price shock will cut world real GDP growth by 0.4 percentage points, reducing copper demand growth accordingly.

Goldman estimates that a one percentage point slowdown in global real GDP growth typically reduces copper demand growth by around 0.9 percentage points. That relationship implies a larger inventory build and a softer price path than previously expected.

The bank expects ex-US copper balances to remain close to flat this year, but the global refined market is now expected to carry a larger surplus. This reinforces the near-term view that copper prices may face pressure if demand recovery slows or energy costs remain elevated.

Downside risk remains linked to the duration of disruption around the Strait of Hormuz. If energy flows do not recover from mid-April as assumed, higher fuel prices could further weaken industrial activity, manufacturing demand and copper consumption.

DRC Sulphur Risk Could Narrow the Surplus

Goldman has not included direct Middle East-related supply disruption in its base-case forecast. However, the conflict could still affect copper production in the Democratic Republic of Congo, where some solvent extraction-electrowinning output depends on sulphur moving through Middle East trade routes.

The DRC accounts for about 15% of global copper mine production. The country reportedly holds up to three months of sulphuric acid inventories, which means a short disruption may have limited impact on copper supply.

A longer interruption would be more significant. If sulphur exports through Hormuz remain constrained, acid availability could tighten, leaching costs could rise and DRC copper output could fall. That would narrow the projected refined copper surplus and provide some support to prices.

Goldman maintained its longer-term bullish copper view despite the 2026 downgrade. The bank still expects copper to rise to $15,000/t by 2035, supported by constrained supply growth and stronger demand from grid and energy infrastructure, which it sees accounting for 60% of global copper demand growth to 2030.

The Metalnomist Commentary

Goldman’s revision shows that copper’s near-term risk is shifting from supply shortage to demand sensitivity. However, the long-term copper story remains tied to grids, electrification and energy security, where structural demand still looks stronger than the 2026 surplus headline suggests.