UK-based Arc Minerals has commissioned the Kalaba Demonstration Pilot Plant, which will initially produce copper / cobalt sulphide concentrate.
The company is finalising its plans for future mining at the site, and is completing profiles of oxide resource tonnages and grades, following the completion of modelling activity.
After evaluating the block model of the ore body, Arc Minerals will carry out a review of operational and mining strategy, including the cost-benefit potential of upgrading the oxide ore feed into the plant, which aims to reduce the consumption of acid and related input costs at the plant.
Arc Minerals executive chairman Nick von Schirnding said: “I am very pleased to report that we delivered on our commitment to complete the construction and commissioning of the small-scale demonstration pilot plant at Kalaba.
“In the meantime, we have made major progress regarding our next phase of exploration and our newly identified targets. A more detailed update on this will be made shortly.”
The plant feed will be drawn down from the existing stockpile of 10,000t at 2% copper, and as a result, the company will complete initial production at no additional cost.
Arc Minerals is also investigating the possibility of enhancing revenue streams through the production of separate copper and cobalt sulphide precipitates.
Arc Minerals has a portfolio of mining projects with interests in Slovakia, Eritrea, the Democratic Republic of the Congo and Zambia.
The company owns a 100% interest in CASA Mining, a 66% equity interest in Zamsort and 100% ownership of the Kremnica Mining Licence Area in Slovakia.
The company reached an agreement in June last year to acquire an additional 6% interest in Zamsort from two separate shareholders.