Our operations
Discover how our integrated mining operations drive efficiency, sustainability, and value, from exploration to processing and beyond. We combine innovation, expertise, and environmental stewardship to deliver responsible growth at every stage.
Mining
Our primary method of extraction is underground mining, which allows us to access and recover ore bodies located deep beneath the surface with precision and efficiency. We have two mining sites:
Site 1 – Kalwalo
At our Kalwalo site, underground operations are centered around a primary vertical shaft, which currently supports two active drifts (horizontal tunnels). This enables efficient ore extraction and haulage.
We are currently in the process of sinking the shaft deeper to establish an additional level of drifts. Once completed, this new level will significantly increase our production capacity by providing access to deeper ore zones.
Site 2 – Mikei (Expansion of Site 1)
Site two, located nearby, is a strategic expansion of our Kalwalo operations. we are developing a new shaft designed to intersect the existing drifts at Site 1 at a depth of approximately 120 meters. This connection will create an integrated underground system, enhancing operational flexibility and enabling a further increase in tonnage during production.
Processing
For processing we use a Carbon-in-Pulp (CIP) circuit to ensure efficient and maximum gold recovery from ore.
1. Early Gold Capture
Before the ore reaches the main processing circuit:
- A copper plate traps larger gold particles.
- A grass-like matting surface captures heavier soil and fine gold, which is then washed using mercury to recover additional gold.
2. CIP Circuit
The remaining slurry is pumped into a series of eight processing tanks:
- 4 leaching tanks dissolve the gold into solution.
- 4 carbon tanks containing activated carbon that adsorbs the dissolved gold.
3. Elution & Recovery
Once the carbon is fully loaded with gold, it is transferred to our elution system, which efficiently strips the gold from the carbon for final recovery, the carbon is afterwards regenerated.
4. Tailings Management
After gold extraction, the leftover material is safely transferred to our Tailings Storage Facility which meets environmental standards and ensures responsible waste management.
Processing Sites
- Nyalgunga (Migori-Muhuru Road)
Find out why we do what we do, and how we get it done