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Zimbabwe
RHA Mine

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 Location:
270 km NW from Bulawayo, Zimbabwe

  Project Contacts:
19 John Plagis Alex Park
Harare
Zimbabwe
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  • Overview
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Overview

StageRestarting
Mine TypeUnderground
Commodities
  • Tungsten
Mining Method
  • Longhole open stoping
Mine Life10 years (as of Jan 1, 2021)
Premier has completed a new underground Conceptual Mine Plan for RHA. The objective of the new Conceptual Mine Plan is to assess the potential impact of returning RHA to production and assess whether RHA can generate a return on Premier's investment to date in surface infrastructure, plant and equipment at RHA at minimal additional capital costs, based on using just the existing vertical access shaft (the previous study had included the construction of a new high-capacity decline shaft).


Owners

Source: p. 4,62
CompanyInterestOwnership
Premier African Minerals Ltd. 49 % Indirect
National Indigenisation and Economic Empowerment Fund 51 % Indirect
Premier holds a 49% interest in the RHA Tungsten joint venture, and has operational management control of the RHA Tungsten Mine. Premier’s JV partner is the government-backed National Indigenisation and Economic Empowerment Fund (NIEEF), with a 51% interest.

The plant is owned 100% by Premier.

Contractors

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Deposit Type

  • Vein / narrow vein


Summary:

We discovered that whilst the mineralised quartz veins are identifiable and exhibit strike continuity within the existing underground development, the wolframite mineralisation does not show the same level of consistency. Tungsten grades show extreme variability and range from sub-economic to more than 300kg per ton over short strike distances. This variability in wolframite mineralisation may make application of normal geostatistical methodologies unreliable and this has resulted in the extended sampling and re-evaluation process described above, which is vital to ensure our financial modelling of RHA remains accurate.


Mining Methods

  • Longhole open stoping


Summary:

Conceptual Mine Plan has been based on a revised RHA underground Mineral Resource estimate relating to the parts of the ore body included within the Conceptual Mine Plan. The objective of the new Conceptual Mine Plan is to assess the potential impact of returning RHA to production and assess whether RHA can generate a return on Premier's investment to date in surface infrastructure, plant and equipment at RHA at minimal additional capital costs, based on using just the existing vertical access shaft (the previous study had included the construction of a new high-capacity decline shaft).


Crushing and Grinding


Processing

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Summary:

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Reserves at May 20, 2021:
A cut-off grade of 1.87kg/t WO3

CategoryTonnage CommodityGradeContained Metal
Indicated 122.45 kt WO3 8763 g/t 1,073 t
Inferred 928.57 kt WO3 7253 g/t 6,735 t
Total Resource 1,051 kt WO3 7429 g/t 7,808 t



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 15, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
Annual Report 2016
Corporate Presentation 2014
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