In 2019, Greenstone Resources LP and International Base Metals Ltd. entered into a strategic partnership to advance the Omitiomire Copper Project in Namibia through an earn-in agreement over Craton Mining and Exploration (Pty).
Omico brings together extensive experience to maximise return for shareholders
As part of the agreement, Greenstone has management control of the project, and undertook the completion of a Bankable Feasibility Study (BFS) incorporating detailed mining, metallurgical power, water and environmental studies ongoing.
The Bankable Feasibility Study published in 2024 included four phases of metallurgical test work over three years and 25 full-size heap leach columns. The final results have delivered significant economic benefits driven by low acid consumption (9kg/t) and short leach times (119 days).
The BFS demonstrates a low-risk, conventional open-pit mine, utilising a chloride heap leach process and solvent extraction electro winning technology to produce 23-32,000 tonnes per annum (tpa) of LME Grade A copper cathode for 15 years.
- 70/30 grid and renewable hybrid solar PV energy mix;
- Low water consumption – 50 m3/t cathode in closed circuit;
- Minimal negative social impact;
- 800-1,000 direct jobs created;
- Estimated Scope 1&2 CO2 emissions 3,700kg CO2/t cathode;
- Ongoing Phase 4 test work indicates reduced acid consumption, reduced leach times and improved recoveries.
5% of Craton is held by the Craton Foundation Trust, supported by Omico, which undertakes various social initiatives among communities in the project’s zone of influence.
Our Mission: To build a lean and competent mining company, operating to the highest industry standards, and delivering value to our stakeholders in a sustainable fashion.
Strategy: In order to achieve this, we are advancing the Omitiomire Copper Project in central Namibia, with the Bankable Feasibility Study completed in 2024. Drilling to date has identified a proven and probable reserve of 102 million tonnes (“Mt’) at 0.51% Total Copper (“TCu”) for 516,000 tonnes of contained copper.
