Premier African Minerals (LON:PREM) shares went higher on Monday as it unveiled positive tantalite findings from its Zulu project in Zimbabwe.
The firm has sampled along a 750metre strike on the eastern side of the Pegmatite and identified distinct high grade zones in the area pitted.
Estimated tantalite grades in the -4mm fraction in the anomalous zones have been identified of up to 990 ppm (parts per million).
But further testing is needed, the firm said - expected to start in January next year, which will guide the potential development of tantalite exploitation at Zulu.
Tantalite is the source of tantalum, which has a high melting point and is frequently used as a substitute for more expensive platinum.
It is used in chemical plants, nuclear plants, aeroplanes and missiles.
George Roach, Premier's chief executive, said: "Zulu remains a multi-commodity opportunity and the possible production of tantalum would represent a real value addition if developed in conjunction with the exploitation of Lithium minerals.
"In addition, we note the presence of an average 450 grams per ton in the -4mm faction, Scheelite, is a tungsten-bearing mineral with possible value as a byproduct if tantalum production proceeds."
The firm also noted that tantalite was always expected to be an addition to the main anticipated commercial exploitation of lithium compounds at Zulu.
Shares added 5.26% to stand at 0.5p.