The plan calls for about $9.5 billion for El Pachón and roughly $4–4.5 billion for MARA, with total spending likely above $15 billion across the full build-out. If national and provincial approvals move on schedule, MARA could enter production around 2031 and El Pachón in 2033. Argentina’s Copper Projects Poised to Boost Global SupplyExecution and scale are the differentiators. El Pachón is a large copper-molybdenum system in the high Andes with by-product credits that can support project economics. Why it matters beyond Argentina: copper is a bottleneck for electrification.