Antofagasta Centinela Expansion Adds 370M lb Capacity, Lowers Costs
Antofagasta Plc's Centinela expansion will add 370 million pounds of annual copper capacity and lower unit costs, placing the company in the global first cost quartile. Robust copper and gold prices are expected to drive record profitability and cash flow in H2 2025 and 2026.
1. Robust Q4 Production Performance
Antofagasta reported fourth-quarter copper output of 177,000 tonnes, marking a 9% increase from the prior quarter and bringing full-year production to 653,700 tonnes. This quarterly rise was driven by strong throughput at the Los Pelambres and Centinela operations, where ore grades improved by 4% and 3% respectively. The company also maintained its sulfide expansion projects on schedule, supporting its full-year guidance of 650,000–660,000 tonnes.
2. Copper Price Rally Strengthens Revenue Outlook
Copper futures climbed 7% to $6.34 per pound during the quarter, extending the year-on-year gain to nearly 48% as tight supply and surging electrification demand put upward pressure on prices. This price environment is forecast to boost Antofagasta’s annual revenues by approximately $1.2 billion based on current production levels, significantly enhancing free cash flow generation and underpinning dividend sustainability.
3. Gold Tailwinds Add Diversification Benefits
In addition to copper, Antofagasta’s gold by-product stream delivered higher margins as spot gold prices remained above $2,000 per ounce. Gold sales of 220,000 ounces in the year contributed roughly $400 million to revenues, helping offset the company’s fixed cost base and improving overall cash margin by 3 percentage points compared with the prior year.
4. Centinela Expansion to Drive Next-Phase Growth
The ongoing expansion at Centinela is set to add 370 million pounds of annual copper capacity by mid-2026, at an expected capital cost of $1.1 billion. Once complete, Antofagasta forecasts a 10% reduction in unit cash costs, positioning it in the lowest quartile of the global cost curve. Management estimates the project will generate an internal rate of return of 18%, underpinning long-term earnings growth and shareholder returns.