Antofagasta H1 copper output rises 11% as by-product gains cut costs

Antofagasta reported a robust Q2, with group copper production rising 3% quarter-on-quarter to 160,100 tonnes, contributing to an 11% year-on-year increase for H1. Net cash costs significantly declined by 27% sequentially to $1.12/lb, bolstered by strong by-product credits. The company reiterated its full-year copper output guidance of 660,000–700,000 tonnes, expecting costs at the lower end of the range, and projects production increases through year-end with major growth initiatives on track. CEO Ivan Arriagada remains bullish on copper, citing rising demand from decarbonization, AI, and infrastructure against constrained supply.

Analysis

Antofagasta (ANTO) demonstrated strong operational performance in its second-quarter report, with group copper production increasing 3% quarter-on-quarter to 160,100 tonnes, contributing to an 11% year-on-year rise for the first half. A key highlight was the significant reduction in costs, as net cash costs fell 27% sequentially to $1.12/lb, driven by lower underlying expenses and substantial by-product credits from a 13% QoQ increase in gold production and a 42% surge in molybdenum output. Management has reaffirmed its full-year copper production guidance of 660,000–700,000 tonnes and now expects net cash costs to finish at the lower end of its $1.45–$1.65/lb guidance range. The outlook for the second half appears positive, with production expected to increase sequentially following the completion of maintenance activities. The company's long-term growth projects remain on track and on budget, underpinning a bullish management view on copper's future, citing demand from decarbonization, AI, and infrastructure against a backdrop of constrained supply. However, the report includes a note of caution from an external AI-driven analysis, which suggests that ANTO may not be among the most undervalued stocks, implying its current valuation might already reflect this strong performance.

Key Decisions for Investors

• Given the strong operational momentum, significant cost reductions, and improved cost guidance, investors could interpret these results as a bullish signal for near-term earnings momentum.
• The CEO's conviction in long-term copper demand, supported by on-track growth projects, reinforces the long-term investment case, though this depends on sustained commodity price strength.
• Investors should monitor copper, gold, and molybdenum prices, as the company's low-cost profile is heavily dependent on by-product credits, which represents a key variable for future profitability.
• Despite the positive operational update, the mention that an external tool does not rank the stock as a top undervalued pick suggests it is prudent to conduct thorough valuation analysis to assess if the positive news is already priced into the shares.