The major outage at the Grasberg mine, which supplies 3% of the world's copper, is turning a previously balanced market into a significant deficit for 2025 and 2026. This highlights supply chain fragility, as there were no existing surpluses to absorb the shock.
The Grasberg mine disruption provides a fundamental catalyst for higher copper prices. This is amplified by a macro environment where investors are rotating into real assets like copper due to inflation risks and economic uncertainty, creating a potent combination for a price surge.
While prices above $10,000/ton are expected to depress Chinese demand, the current supply disruption is so significant that this response is unlikely to restrain the price surge. The supply shock is the dominant market driver, overpowering near-term demand-side resistance.
High U.S. copper inventories (COMEX) are unavailable to the global market due to a persistent price premium over the LME. This regional inventory isolation means global supplies are much tighter than headline figures suggest, as the U.S. stockpile isn't alleviating scarcity elsewhere.