Antofagasta Results Presentation Deck
Los Pelambres
Expansion - Phase 1
52% complete
Desalinated water system
Marine Works progress over 60%
in Discharge and Intake tunnels
Desalination plant civil works close
to completion
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Growth projects update
Concentrator
New flotation circuit being erected
• Stockpile expansion completed
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Zaldívar
Chloride Leach
3600001
76% complete
Chlorine corrosion-resistant
materials installed in three of four
solvent extraction (SX) trains
New reagents facilities and
washing ponds on schedule
Centinela
Esperanza Sur Pit
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Pre-stripping completed in July
First autonomous trucks arrived in
June
Operating autonomy tests start in
September
Centinela
Second concentrator
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ANTOFAGASTA PLC
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EIS update approved and
SERNAGEOMIN critical permits
granted
Started detailed engineering for
concentrator EPC
Bidding processes for new tailings
storage facility, water pipeline and
other infrastructure are in progress
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