Commodity: Tungsten

The RHA Project is located in an area of historic production, approximately 270km northwest of Bulawayo. Premier has advanced the RHA project from an exploration project through to a producing tungsten mining operation.

The project comprises 50 Mineral Claim Blocks, covering 1,800 hectares, consisting of 10 owned by Premier and 40 which are under option. Small-scale surface and underground mining was conducted at the site between 1931 and 1979. Total production from the RHA mine was 1,247.65 tonnes of wolframite concentrate, containing 65% WO3.

The deposit is approximately 800m in strike length and 300m wide. Premier African recently announced a resource of 22.14 million tonnes at 2.45kg per tonne in both the underground and open pit operations. (Please see resource table below)

To date, Premier African Minerals has invested around US$18million in the acquisition and development of the mine as well as the plant and necessary infrastructure.

The processing plant is a conventional gravity processing plant with a capacity of 40,000 tonnes per month. The plant is equipped with an XRT sorter to upgrade the feed to the plant and hence reduce the overall operating costs.

The plant produces a commercial tungsten concentrate (in excess of 60% W03) and the Company currently has an offtake agreement with Noble Resources.

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Table 1: Summary Mineral Resource

 

Category	Gross			Net attributable			Operator
	Tonnes (millions)	WO3 Grade (kg/t)	Contained metal (kg)	Tonnes (millions)	WO3 Grade (kg/t)	Contained metal (kg)
Underground Mineral Resources
Measured	0.029	5.45	157,679	0.029	5.45	157,679	Premier
Indicated	0.076	6.31	479,936	0.076	6.31	479,936
Inferred	1.220	4.61	5,619,877	1.220	4.61	5,619,877
Total	1.325	4.72	6,257,493	1.325	4.72	6,257,493

 

Open Pit Mineral Resources
Measured	-	-	-	-	-	-	Premier
Indicated	0.707	1.47	1,039,655	0.707	1.47	1,039,655
Inferred	20.17	2.37	47,841,458	20.175	2.37	47,841,458
Sub-Total	20.882	2.34	48,863,534	20.882	2.34	48,863,534

 

Notes:

1. Premier is the operator of the RHA Tungsten Project (“RHA”).
3. Premier holds a 49 per cent. interest in RHA. RHA is indebted to Premier in excess of US$20m and until such time as this is settled, all concentrate produced will be attributable to Premier.
5. Mineral Resources which are not Mineral Reserves have no demonstrated economic viability.
7. The effective date of the Mineral Resource is 12 September 2017.
9. Mineral Resources for RHA have been classified according to SAMREC.
11. The Mineral Resource Estimate is based on information compiled by Mr Gerard Evans.
12. The contained WO3 metal values are rounded, actual grades and contained metal kg are accurately stated and any differences in the total are due to rounding.