Name of the Project
K. Hill manganese project.

Location
The Kanye basin, in south-eastern Botswana.

Project Owner/s
Giyani Metals Corp.

Project Description
An updated preliminary economic assessment (PEA) has incorporated 1.7-million tonnes of inferred mineral resources into the project grading 25.7% manganese oxide, 10.5% aluminium oxide, 30.9% silicone oxide, 16.8% iron and 8.7% LOI.

The project is expected to produce 891 000 t of high-purity manganese sulphate monohydrate over its ten-year mine life.

Potential Job Creation
Not stated.

Net Present Value/Internal Rate of Return
The updated PEA has increased the project’s pretax net present value, at a 10% discount rate, from $357-million in the April 2020 PEA to $431-million in the April 2021 PEA. The internal rate of return has decreased from 82.1% to 80%. The project has a payback of three years.

Capital Expenditure
The project will require a capital investment of about $153-million.

Planned Start/End Date
Not stated.

Latest Developments
Metallurgical testwork undertaken by Mintek in South Africa has successfully produced high-purity manganese sulphate monohydrate (HPMSM), with less than 1% total impurity and with a manganese content of more than 31.5%.

These preliminary results were achieved by the evaporative crystallisation of a purified solution. Completed activities include leach optimisation, bulk leach, base metal precipitation, iron and aluminium precipitation, representing a number of the initial steps of the process flowsheet to produce HPMSM from the K.Hill project ore.

Ongoing purification and crystallisation testwork will focus on further reducing the total impurity in the pregnant crystalliser feed solution to remove trace quantities of deleterious elements.

Comminution testwork, the first step in the ore treatment process, will also be completed as part of the overall testwork program.

Key Contracts, Suppliers and Consultants
Mintek (metallurgical testwork).

Contact Details for Project Information
Giyani Metals Corp, tel +1289291 4032 or email info@giyanimetals.com.