Mantoverde

1. Project Overview

The Mantoverde project is located approximately 56 km southeast of Chañaral, Chile. The operation is an open-pit copper-gold mine and represents one of Capstone Copper’s key assets in the country.

The deposit lies within the Atacama Metallogenic Belt, a geologically significant district characterized by major copper mineralization systems.

2. Main Challenges

• Systematic identification and classification of operational risks associated with the Tailings Storage Facility (TSF).

• Alignment of quantitative risk assessment with the Global Industry Standard on Tailings Management (GISTM).

• Adaptation of risk methodologies to a facility under construction supporting concentrate operations.

• Development of Trigger Action Response Plans (TARPs) translating complex technical risks into actionable operational thresholds.

3. Our Approach and Solutions

GA Consultores implemented a structured risk management framework based on hazard identification and scenario-based analysis.

Applied Strategies

• Interdisciplinary technical workshops to validate and prioritize critical risks.

• Application of international best-practice risk methodologies for TARP development.

• Definition of objective and measurable activation thresholds applicable under real operational conditions.

• Delivery of structured response protocols supporting timely decision-making during critical events.

4. Results Achieved

• Implementation of a structured risk management framework aligned with GISTM principles.

• Early identification of critical TSF scenarios and corresponding mitigation strategies.

• Strengthening of organizational safety culture and operational awareness.

• Clear definition of roles and responsibilities across management levels.

• Alignment of technical, operational, and environmental governance under a unified tailings safety vision.