Koryx Copper expects to release a pre-feasibility study (PFS) for its Haib Copper Project in southern Namibia by the end of November 2026, as the company advances plans for a large-scale milling and flotation operation.
Koryx President and Chief Executive Officer Heye Daun said conversion drilling required for the PFS has been completed, while metallurgical, infrastructure and permitting work is progressing.
“With conversion drilling now completed for the PFS and our metallurgical, infrastructure and permitting workstreams all advancing in parallel, we remain firmly on track to deliver the Haib PFS before the end of November 2026,” Daun said.
The company has revised the proposed processing flowsheet for Haib, removing heap leaching from the PFS base case and focusing on milling and flotation.
A debottlenecking study has increased planned crushing throughput to 48 million tonnes per annum (Mtpa), while coarse particle flotation is expected to reject about 12 Mtpa of low-grade coarse gangue before material reaches the main flotation circuit.
Koryx said metallurgical testwork is nearing completion, with interim results broadly consistent with historical testing and supporting the project’s processing assumptions and potential recovery of by-products.
Testing showed that partially liberated sulphides of up to 450 micrometres could be recovered using coarse particle flotation. Koryx said the process could reduce the amount of material requiring fine milling, lowering energy requirements.
Jameson cells are also planned alongside conventional flotation to improve concentrate grades while maintaining copper recovery and reducing power and space requirements.
Infrastructure studies are advancing in parallel, with Haib expected to have maximum electricity demand of about 260 MVA and annual consumption of approximately 1.45 TWh.
Koryx has signed a memorandum of agreement with NamPower, with engineering underway for a proposed 68-kilometre, 220kV grid connection from the Harib substation. The grid supply is expected to be supplemented by solar photovoltaic generation and battery storage.
The company has also signed a memorandum of understanding with NamWater for the project’s water requirements, with the Orange River selected as the preferred bulk water source.
The proposed abstraction point is about nine kilometres south of the mine, while an off-channel storage reservoir is planned to maintain supply during periods of low river flow and drought.
Koryx has also selected a preferred tailings storage facility site from nine options assessed during the PFS. The site is expected to accommodate approximately 1.15 billion tonnes of tailings over the life of the mine.
On permitting, Environmental and Social Impact Assessment and Environmental Management Plan documents were submitted to the Ministry of Environment, Forestry and Tourism in August and September 2026 for the mining licence area and proposed Orange River water abstraction.
Koryx expects a decision on the Environmental Clearance Certificate applications before the end of 2027.
Haib is a large porphyry copper deposit with associated gold and molybdenum. Koryx’s March 2026 mineral resource estimate contains 2.09 million tonnes of copper in the Indicated category and a further 1.385 million tonnes in the Inferred category.
