Summarised Mineral Resources and Mineral Reserves report

at 30 June 2021

Adding value

Extracting optimal value from the Mineral Resources and Mineral Reserves in our portfolio is fully aligned to ARM’s purpose of delivering competitive returns and create sustainable value for all stakeholders through its strategic pillars:

    STRATEGIC PILLAR   HOW WE ADD VALUE
  Operate our portfolio of assets safely, responsibly and efficiently   Manage life-of-mine Mineral Resources and Mineral Reserves for each operation efficiently, revising mine plans as required.
  Allocate capital to value-creating investments   Undertake exploration activities on-mine and apply stringent criteria in allocating capital for the work, to ensure value creation in the areas we explore.
  Allocate capital to value-creating investments   Maintaining the appropriate balance between Mineral Reserves depletion and growth to ensure a sustainable company.

A Mineral Resources and Mineral Reserves report is issued annually to inform shareholders and potential investors of the mineral assets held by African Rainbow Minerals Limited (ARM).
The full report is available on www.arm.co.za.
This summary should be read with the detailed 2021 ARM Mineral Resources and Mineral Reserves report on our website.

Introduction

ARM’s method of reporting Mineral Resources and Mineral Reserves complies with the South African Code for Reporting of Exploration Results, Mineral Resources and Mineral Reserves (SAMREC Code of 2016), the South African Code for reporting of Mineral Asset Valuation (SAMVAL Code, 2016) and Section 12.13 of the JSE Listings Requirements.

The SAMREC Code of 2016 sets out minimum standards, recommendations and guidelines for Public Reporting of Exploration Results, Mineral Resources and Mineral Reserves in South Africa. It was launched and adopted by the Johannesburg Stock Exchange (JSE) in May 2016. The 2021 ARM Mineral Resources and Mineral Reserves report is based on the SAMREC Code of 2016.

The reporting of Mineral Resources and Mineral Reserves is a disciplined annual process, shown below:

Reporting of Mineral Resources and Mineral Reserves flow chart

1 QAQC: Quality Assurance/Quality Control.

Formal guidelines have been formulated to assist competent persons in the estimation, classification and reporting of Mineral Resources and Mineral Reserves. The guidelines are available at the corporate office on the Mineral Resources Management (MRM) server.

  As part of ARM’s management process of Mineral Resources and Mineral Reserves, quarterly divisional forum meetings are conducted with the following objectives:
 
  • Skills and technical knowledge transfer in the Mineral Resources and Mineral Reserves fields
 
  • Ensuring that best practices through SAMREC compliant standard procedures are shared and applied
 
  • Facilitate internal peer reviews and audits
 
  • Advance professional development and registration of technical personnel.

The convention adopted in this report is that the Measured and Indicated Mineral Resources estimates are reported inclusive of that portion converted to Mineral Reserves. Inferred Mineral Resources have not been included in feasibility studies or life-of-mine plans. Mineral Resources and Mineral Reserves estimates are quoted as at 30 June 2021 unless stated otherwise.

Underground Mineral Resources are in situ tonnages that have reasonable prospects for eventual economic extraction (RPEEE) at the postulated mining width, after deductions for geological losses. Underground Mineral Reserves reflect tonnages that will be mined and processed. Open-pit Mineral Resources are quoted as in situ tonnages that have reasonable prospects for eventual economic extraction and Mineral Reserves are tonnages falling within an economic pit-shell. Surface Mineral Resources and Mineral Reserves consist of stockpiles already mined. All Mineral Reserves are quoted at the grade fed to the plant.

The classification into Measured, Indicated and Inferred Mineral Resources is done by consideration of geostatistical parameters, spacing of boreholes, geological structures and continuity of the mineralisation.

External consulting firms audit the Mineral Resources and Mineral Reserves of the ARM operations when substantial geological borehole data has been added to the previously established database or every three years whichever comes first. During the past reporting cycle Beeshoek Iron Ore Mine Mineral Resources were independently audited by SRK consultants.

Please refer to the detailed ARM Mineral Resources and Mineral Reserves report under Beeshoek for audit comments.

Management of risk factors that relate to environmental, social and governance (ESG) aspects that could impact on the Mineral Resources and Mineral Reserves estimates are reported in this report, in the material matters and risk management sections, and the ESG report in the material matters, environment and social sections.

The Mineral Resources and Mineral Reserves are reported on a 100% basis and the attributable interest is noted in the footnotes of the tabulations. Rounding of figures may result in minor computational discrepancies on the Mineral Resources and Mineral Reserves tabulations.

Competence

The lead competent person with overall responsibility for the compilation of the 2021 Mineral Resources and Mineral Reserves report is Shepherd Kadzviti, an ARM employee. He confirms that the information in this report complies with the SAMREC Code (2016) and that it may be published in the form and context in which it was intended.

Shepherd graduated with a BSc in geology and mathematics and an MSc in exploration geology from the University of Zimbabwe. He later completed a graduate diploma in mining engineering (GDE) at the University of the Witwatersrand. He worked at RioZim’s Renco Gold Mine for 14 years in various capacities as geologist, technical services superintendent and mine manager. In 2005, he joined Anglo American Platinum at Union Mine as an evaluation geologist with responsibilities for geological database management and Mineral Resource estimation. After two years at the mine, he was transferred to the Anglo American Platinum corporate office where he was appointed resource geologist. He then joined ARM as Mineral Resources specialist in 2008, and was involved in the evaluation of various mineral deposits for the group. In 2012, he was appointed group mineral resources manager for ARM. He is registered with the South African Council for Natural Scientific Professions (SACNASP) as a professional natural scientist (PrSciNat) in the field of practice of geological science, registration number 400164/05. SACNASP is based in the Management Enterprise Building, Mark Shuttleworth Street, Innovation Hub, Pretoria, 0087, South Africa. He has a total of 31 years’ experience in various aspects of mining and exploration geology, database management and Mineral Resource estimation and as such is considered to be a competent person.

All competent persons at the ARM corporate office and the operations have sufficient relevant experience in the type of deposit and in the activity for which they have taken responsibility. The competent persons consent to the inclusion of the Exploration Results, Mineral Resources and Mineral Reserves information in this report, in the form and context in which it appears. Details of ARM’s competent persons are available from the company secretary on written request.

The following competent persons were involved in the estimation and/or compilation of Mineral Resources and Mineral Reserves. They are employed by ARM or its subsidiaries and/or joint venture (JV) partners:

  ARM corporate office     S Kadzviti, M Mabuza, V Moyo, R Jooste
  PGM (Two Rivers Mine)     JZ Khumalo, JA Coetzee, TJ Horak
  PGM (Modikwa Mine)     J de Kock, M Setuke (Anglo American plc)
  Nickel (Nkomati Mine)     N Strydom, T Mogano
  Manganese (Black Rock Mine)     B Ruzive, J Smuts
  Iron ore (Beeshoek Mine)     AMJ Burger, R Jooste
  Iron ore (Khumani Mine)     MA Burger, IJM van Niekerk, B Muzima
  Coal (Goedgevonden)     M Smith (Glencore head office)

 

Shepherd Kadzviti PrSciNat
Group mineral resources manager

African Rainbow Minerals
24 Impala Road
Chislehurston
Sandton
South Africa

8 October 2021

Managing performance