CASE STUDY Mine: Minera Los Pelambres Owners: 60% Antofagasta Minerals 40% Nippon LP Resources B.V Mitsubishi Materials Marubeni Mitsubishi Corp. Location: Coquimbo Region, Chile Production: 357.800 TMF COPPER (2018) OVERVIEW Up until 2019, the Drilling Quality Control (QC) process called for a high level a data processing and analytics but it was not possible to have on-line data for timely decision making when faced with deviations arising during the process. On-line QC allows users to control over/sub-drilling, deviations from blasthole collar, number of rework tasks, drilling speed, operational parameters (RPM, torque, pulldown, air pressure); contrast geotechnical units; the effective utilization rate on available basis, availability and status of

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