According to recent analysis by Sprott, global copper mine output is projected to experience its first year-on-year decline since 2017 in 2026. The forecast challenges conventional market assumptions that elevated prices would stimulate immediate supply growth, pointing instead to structural headwinds. Primary drivers include irreversible declines in average ore grades, which are elevating extraction costs, alongside persistent production shortfalls in Chile, the world’s leading copper producer.
Operational data underscores this downturn. During the first half of 2026, global copper mine output fell 1.1% compared to the same period last year, while Chilean production dropped 6.6%. The contraction accelerated in July, with monthly output declining by 9.4%. In response to these trends, the Chilean Copper Commission (Cochilco) has lowered its full-year 2026 production forecast to 5.27 million tonnes. State-owned miner Codelco, which has failed to meet its targets for seven straight years, officially withdrew its production guidance in August and scaled back long-term recovery ambitions.
The supply outlook remains constrained by extended project timelines. Developing a new copper mine typically requires approximately 17.5 years, while existing expansion plans face delays due to permitting bottlenecks and infrastructure limitations. Consequently, any additional capacity triggered by current high prices is unlikely to reach commercial production until the 2030s, reinforcing expectations of tighter near-term market fundamentals.