ChemX Materials Ltd December 2022 Quarterly Activities Report

• Work begins on supply of suitable manganese to a proposed battery material refinery hub in Kalgoorlie, Western Australia
• ChemX strengthens executive and non-executive management with significant appointments
• Integrated High Purity Alumina (HPA) Micro Plant facility in Perth commissioned
• Manganese RC Drill Exploration Program Approved for January 2023, designed to Define and Estimate a Maiden Mineral Resource (MRE)
• Metallurgical testing continuing to produce battery-grade manganese from Mt Jamieson ore

ChemX Interim Managing Director Stephen Strubel commented: “It has been another busy quarter for ChemX as we again made good progress at all our projects.

“The establishment of an integrated High Purity Alumina facility in Perth was a major milestone for the Company and the Micro Plant was recommissioned. The HPA Pilot Plant, expected to be constructed later this year, will provide further impetus to the HPA project.

“Following the promising assay results we received for manganese at the Eyre Peninsula tenements, we have commenced a second round of drilling at Mt Jamieson with an aim of producing a maiden manganese resource this year.”

High Purity Alumina

On 18 August, ChemX confirmed it would build a High Purity Alumina Pilot Plant after a Pre-Feasibility Study (PFS) confirmed the viability of the Company’s proprietary HiPurA® technology.

The PFS was conducted by engineering firm Primero Group and was based on a 50 tonne per annum (tpa) pilot plant requiring a capital expenditure of A$2.5 million, with an additional contingency of A$0.41 million. The PFS included data obtained from the Company’s HPA Micro Plant commissioning phase and subsequent operation and incorporated several work streams and equipment modifications which led to the design of an appropriately sized pilot plant.

During the December Quarter, ChemX established a dedicated HPA production facility in Perth, Western Australia, after securing a 1200sqm warehouse with adjacent 1200sqm hardstand external space capable of housing both the HPA Micro Plant and HiPurA® HPA Pilot Plant to be constructed in CY2023.

During the quarter, the Micro Plant completed a staged re-commissioning at the new location. ChemX is awaiting final analysis of base HPA samples it has provided to an external testing laboratory.

During the quarter the company increased head count dedicated to the development of the HPA technology in addition to investing in laboratory equipment which will increase efficiency and reduce reliance on external laboratories. The data gained from the Micro Plant will accelerate preliminary design work for the HPA Pilot Plant.

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