Copper posted weekly gains as two structural forces aligned: measurable demand recovery in China and emerging supply constraints from the world's largest producer.

China's manufacturing purchasing managers' index expanded, signaling increased factory output in construction and electronics—the metal's largest end-use sectors. The index reading marks a departure from prior weakness and suggests industrial demand is accelerating rather than remaining depressed.

Simultaneously, reports of a potential production disruption at a significant Chilean copper mine added support. Chile accounts for roughly 28 percent of global refined copper output. While Chilean mining authorities have not yet confirmed the scope or duration of the reported issue, any reduction in supply from the world's largest producer typically commands price weight in a market where annual deficits are already projected.

The demand-supply squeeze is real but fragile. Chinese consumption, while rebounding, remains below 2021 peak levels. If the Chilean disruption proves temporary or localized, the supply shock will dissipate quickly. Conversely, if Chinese manufacturing momentum stalls—a recurring pattern in prior cycles—demand support evaporates.

The next critical data points are China's official manufacturing PMI (due later this month), any production updates from Chilean operators, and broader economic data from Beijing that would confirm whether factory expansion is durable or cyclical noise.