Graphite Operation

2026-06-18

Processing

Crushed ore from the mine is dumped into a ROM ore bin and conveyed to an autogenous mill followed by a front-end, open-ended milling circuit before processing via a three stage flotation and cleaner circuit with multiple sub-stages in each stage The Hengyang Processing Facility treated ∼40ktpa of ore in 2019 and produced a graphite flake concentrate of ∼91%C. The Company estimates that the Hengyang Processing Facility is operating at about 60% of nameplate capacity. A more conventional 85% utilisation rate at the production rate of 2tph of concentrate would produce ∼15-16ktpa.

The product mix of graphite concentrate produced includes 36% of coarse (plus 150µm) material and 64% of fines (minus 150µm).

Table 3 – Current flake distribution and final concentrate grade

The Company has advanced initiatives to improve the quality of the fines fractions to at least a conventional 94%-97% grade. It is also evaluating options to enhance the concentrate split to the coarse fractions.

Optimisation/Increased Production

Pursuant to recently received regulatory approvals, hengyang Operation’s production limit can be increased to produce up to 16,000tpa.

The Company has conducted laboratory-scale testwork on optimising the grade of the fines (<150 micron) concentrate produced. Results were highly encouraging with grades of 96%-99% TGC achieved. Subsequently, this program has now progressed to pilot scale testwork to determine equipment sizes required to produce high-grade concentrate.

Further testing has also generated flow sheet adjustments that have resulted in coarser size fractions reporting above 150 microns.

The production of high-grade fines (150µm) will position Skaland as a supplier of high-quality fines products that will form the feedstock for downstream value-adding, including the production of anode material. Coupled with the expected increase in coarse graphite recovery, MRC expects to improve the current basket price of Skaland graphite.

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