Antofagasta cuts Antucoya water use 20% with SIRO Ácido leaching platform in Q1 2026

By Public Technologies
  • Antofagasta deployed SIRO Ácido at Antucoya in 2025 to optimize sulphuric acid and water use in leaching using real-time ore data.
  • In Q1 2026, the platform cut water consumption by 20% and reduced acid consumption by 3%.
  • System flagged misallocation of acid, with about 25% of material over-treated and 27% under-treated, supporting more precise dosing.
  • Tool also estimates optimal irrigation duration using recovery rates and economic variables, including acid prices, to improve copper recovery potential.
  • Platform designed for replication across other oxide operations, including Centinela and Zaldívar, extending resource-efficiency gains.


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