Cokal Advances Indonesian Coal Exploration Using GEOVIA Minex

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Cokal Advances Indonesian Coal Exploration Using GEOVIA Minex

Case study showing how Cokal upgraded coal resources from 77Mt to 261Mt and saved $200,000 using GEOVIA Minex for geological modeling and drill planning.

Published

June 4, 2026

Read time

3 min read

Source

Cokal Limited used GEOVIA Minex to manage exploration data, validate boreholes, and build JORC-compliant geological models for its Bumi Barito Mineral coal project in Indonesia. The software enabled seam correlation, predictive drill targeting, and resource estimation, reducing manual effort from nine man-months to two weeks per drilling program. Minex supported progression from greenfield exploration to open-pit mine planning while ensuring regulatory auditability.

Key takeaways

Resource estimate upgraded from 77Mt to 261Mt using Minex modeling

Exploration costs reduced by approximately $200,000 through targeted drilling

Drill planning and modeling time cut from nine months to two weeks

Data validation and seam correlation improved model accuracy and JORC compliance

Single integrated platform supports transition from exploration to pit design and scheduling

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