Africa-Press – Namibia. London Stock Exchange-listed tin producer Andrada Mining Limited has reported a significant increase in tungsten grades at its Brandberg West project, with feed material grades rising from 0.24% to 1.45% in concentrate.
At the same time, tin and copper showed notable improvements.
According to a statement issued by the company, the initial results are from its ore-sorting test work undertaken at the Brandberg West project.
The initial test work forms part of a multi-phased assessment programme at Brandberg, which includes evaluating the tailings and waste material from the historical mine, and an exploration drilling programme.
There was an uplift across all nine samples with significant grade increases from the feed to the concentrate because of ore-sorting.
Tungsten grade increased from 0.24% to 1.45%, while copper increased from 0.73% to 2.81% and tin increased from 0.31% to 2.09%.
Commenting on the results, Andrada chief executive Anthony Viljoen says: “These results represent an important validation milestone in highlighting the economic potential of tungsten as a key critical metal at the Brandberg West project, particularly against a backdrop of exceptionally strong commodity prices.
“The grades achieved in this test work on the historically mined waste dumps are significantly higher than the global average for tungsten deposits with corresponding high recovery rates.”
Viljoen says this outcome reinforces Andrada’s confidence as the company advances towards larger-scale test batches and firmly positions tungsten as a cornerstone critical metal within the company’s overall portfolio.
The Brandberg West Mine, located on EL5445, has historically been recognised for its significant tin, tungsten, and copper mineralisation.
This initial testing programme focused on nine grab samples collected from various locations within the historical mining area.
They were derived from previously blasted or waste material and represent the diverse mineralisation styles at the project.
The results from these grab samples validate the inclusion of the discard and waste areas in this phase of the agreement as it may accelerate the production timeline since the material is readily available at surface in large volumes.
Each of the grab samples weighed approximately 30kg and comprised loose material found at each of the sample locations.
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