Eddie Mbofwana

Company Overview: Munali Nickel Mine | Mazabuka, Zambia

Crushing Plant

• Managed daily operations of a 3-stage closed-circuit crushing plant, optimizing performance to increase throughput from 100tph to 120tph and boost uptime from 73% to 90% through:
  Predictive maintenance programs reducing unplanned downtime.
  Crusher gap adjustments and screen deck optimizations.
  Replacement of woven wire mesh with rubber screen mats, improving screening efficiency by 20%.
• Conducted safety audits and risk assessments, ensuring 100% compliance with SHEC standards in high-risk crushing areas.

DMS Circuit Optimization

• Achieved 97% Ni recovery in sinks through precise ferrosilicon density control (2.9 SG ±0.05).
• Reduced media losses by 30% by increasing feed preparation screen aperture size, enhancing ore screening efficiency.

Milling & Flotation Performance

• Oversaw ball mill grinding (P80 75µm), ensuring optimal feed size from crushing for maximum milling efficiency.
• Managed flotation circuit operations, consistently meeting production targets.

Key Achievements
✔ Crushing: Increased annual production by 20% through throughput and uptime improvements.
✔ Cost Savings: Reduced maintenance costs by 10% through liner wear monitoring and crusher optimization.
✔ Safety: Maintained zero LTIs for 36 months in the process plant.

• Company Overview: Munali Nickel Mine | Mazabuka, Zambia
• Conducted mass and metal balance reconciliations (in line with best practices as stipulated by AMIRA code) for ore processed, concentrates produced, and dispatches, ensuring ±5% variance tolerance.
• Managed concentrate sales, including loading, dispatch reconciliation, and investigation of weight discrepancies with off-takers.
• Audited weightometers, samplers, and assay data to maintain compliance with world wide acceptable metallurgical accounting standards.
• Led plant sampling surveys for metallurgical accounting and optimized control reports for production audits.
• Collaborated with labs and logistics to resolve truck weight variances, improving dispatch accuracy.
• Monitored process anomalies (e.g., recovery drops, grade shifts) and initiated root-cause analyses for corrective actions.
• Successfully facilitated the acquisition of all quarterly export permits, ensuring compliance with regulatory requirements.