Operational issues at Premier African Minerals Limited's (LON: PREM) RHA tungsten project in Zimbabwe have been well documented but the new look crushing screens have now been commissioned, it told investors.
The new mesh inserts top adjust sorting size upwards have now been installed and commissioned, it said on Friday.
Earlier this month the multi-commodity mining group said that hopefully will show the project can produce profitably, even at current depressed tungsten prices.
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Premier will further update on RHA's performance in the chairman's statement contained in its interims, due for release next Tuesday (Sep 27).
Meanwhile, it will provide details of the immediately available underground resources before the end of this month.
RHA went into production earlier this year and targeted throughput is set at 8,000 tons per month at a grade of 6kg, with recoveries running at 80%.
According to Premier African’s studies, RHA should run profitably with recoveries at 70% and a tungsten price of US$180 per metric tonne unit.
Accordingly, if RHA can be made to work at these prices, once the anticipated upswing comes, the margins will be considerable.