K.Hill battery-grade manganese project, Botswana – update

8th December 2023 By: Sheila Barradas - Creamer Media Research Coordinator & Senior Deputy Editor

K.Hill battery-grade manganese project, Botswana – update

Photo by: Giyani Metals Corporation

Name of the Project
K.Hill battery-grade manganese project.


Project Owner/s
Giyani Metals Corporation.

Project Description
K.Hill will be one of the biggest high-purity manganese sulphate monohydrate (HPMSM) projects in the world. HPMSM is a refined precursor material used in the production of cathode powders for lithium-ion batteries deployed in electric vehicles.

A preliminary economic assessment (PEA), published in July 2023 evaluates a base case scenario that considers a single production line with a feed capacity of 200 000 t/y to process manganese oxide material to produce HPMSM over a 57-year life of project (LoP). The LoP includes a 49-year life-of-mine plus 8 years of stockpile rehandling.

The PEA also evaluates an upside case, which assumes the construction of an additional production line from Year 5 of operations to increase total feed capacity to 400 000 t/y, reducing the LoP to 31 years.

The project includes a crushing facility, including a run-of-mine pad and stockpiles, a three-stage crushing plant and a crushed material bin. It also includes a processing area, including grinding, extraction, purification, fluoride polishing, crystallisation, product storage and handling, water treatment, reagent storage and tails handling; a sulphur dioxide plant; and plant infrastructure and utilities, including steam and air plants and low-voltage switch rooms.

A 4.5 MW solar plant covering 7.6 ha will be built 1.2 km west-north-west of the processing plant entrance gate.

Potential Job Creation
Not stated.

Net Present Value/Internal Rate of Return
The project has a pretax net present value, at an 8% discount rate, of $1.21-billion and an internal of return of 33%, with a payback period of two years.

Capital Expenditure

Planned Start/End Date
First commercial production is expected in the third quarter of 2025, with ramp-up expected to be completed in the third quarter of 2027.

Latest Developments
Giyani Metals has secured $16-million in financing from South Africa’s Industrial Development Corporation (IDC).

The financing forms the cornerstone of a $26-million funding package over the next 15 months to progress the project to a final investment decision.

The remaining $10-million of funding is being secured from a strategic investor, which has signed a nonbinding term sheet that is in the final documentation stage.

“The demand for HPMSM projects with robust economics has never been stronger, as financial institutions begin to understand the enormous demand for this critical mineral as the world moves definitively towards electric vehicles,” Giyani president and CEO Danny Keating has said.

The company is looking forward to starting operations at the demonstration plant to allow for the distribution of samples to potential customers as it finalises its sales and offtaker strategy for the commercial scale plant to be built in Botswana.

K.Hill is an important step in Eco Graf’s strategy to help initiate the development of a battery minerals industry in Southern Africa.

The demonstration plant, which is being completed in Johannesburg, will be used to prepare Giyani for the commercial project construction stage. It will produce up to 600 kg/d of dry HPMSM crystals for shipment to offtakers for product qualification and negotiation of sales contracts, starting in mid-2024.

Several tier-one offtakers have already expressed interest in bringing K.Hill into their battery raw material supply chains and several of them have visited Giyani’s facilities.

Key Contracts, Suppliers and Consultants
SRK Consulting (feasibility study); Mintek (metallurgical test work); and Tetra Tech (metallurgical test work programme).

Contact Details for Project Information
Giyani Metals Corporation, email info@giyanimetals.com.