Jamieson Tank Manganese & HPMSM Project Update

ChemX Materials (ASX:CMX) (ChemX or the Company), a materials technology company focused on providing critical materials required for electrification and decarbonisation, is pleased to provide the following update on its Jamieson Tank High Purity Manganese Sulphate Monohydrate (HPMSM) Project, focusing on the exploration activities at the Company’s Eyre Peninsula tenements EL6634 and EL5920 in South Australia.

The ChemX Jamieson Tank HPMSM project is poised to become a vertically integrated project, with manganese ore to be sourced from its 100% owned manganese (Mn) project on the Eyre Peninsula, South Australia. ChemX intends to process ore based on a developed metallurgical testwork program. The first stage of HPMSM testwork was very encouraging (ASX announcement: 11 May 2022), with the second stage of testwork scheduled to commence in August 2022.

The collation and consolidation of historical exploration work, together with assays received from ChemX’s 2022 drilling programme, provide significant confidence in the Jamieson Tank manganese mineralisation.

Key Highlights

• Extensive historical data search completed over tenements EL6634 and EL5920, including validation and consolidation of ChemX results, previous tenement owners, and South Australian Resources Information Gateway (SARIG) digital records into a managed industry standard DataShed database.
• Included capture of an additional +200 drill holes and +2000 surface samples dating from the 1950s to 2010s targeting multi commodity exploration.
• Integrated database will underpin a thorough interrogation of all historical exploration, enabling a focused strategy towards exploring and delineating critical materials required for electrification and decarbonization.
• Area work history documented including previous exploration works for metals: base metals, gold, kaolin/alumina, diamonds, silver, graphite, iron ore, uranium and manganese. Of particular focus for the development of the HPMSM project are the Manganese prospects (Figure 1):
  • Jamieson Tank (Mn)
  • Bunora West (Mn)
  • Hodgins (Mn)
  • Windyzell (Mn)
  • Francis (Fe, Mn)
  • Polinga (Mn)
• Majority of historical work focused on identifying high grade direct ship ore (DSO) manganese, with drilling completed between 2008 to 2012 on Jamieson Tank prior to ChemX ownership.
• ChemX focus on Jamieson Tank moved to High Purity Manganese Sulphate Monohydrate (HPMSM), with a completed initial Mn drilling program providing significant confidence in the Jamieson Tank manganese mineralisation. Further infill drilling is planned at Jamieson Tank.

High Purity Manganese Sulphate Monohydrate (HPMSM)

HPMSM is a critical part of many lithium battery cathode chemistries. Whilst manganese currently has a large and established global market, not all manganese is able to be efficiently upgraded to the more valuable HPMSM. ChemX has completed an initial HPMSM testwork program, designed to test the efficacy of Jamieson Tank Mn ore. First stage testwork results were very encouraging, with a second stage of HPMSM testwork scheduled to commence in August 2022.

The geological work undertaken by CSA Global Pty Ltd (CSA Global), combined with the HPMSM testwork program, has provided a solid foundation for the development of the vertically integrated HPMSM project.

Manganese Exploration Target - Eyre Peninsula, South Australia

Based on 2022 ChemX drilling and historical drilling data, mining consultant CSA Global has completed a geological re-interpretation and estimated a manganese Exploration Target for Jamieson Tank, summarised in Table 1.

Table 1: Exploration Target summary results

*Totals may not sum correctly due to rounding.

The potential quantity and grade of the Project’s manganese is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if future exploration will result in an estimation of a Mineral Resource.

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