Chemx Materials Limited Provides Update on Its Jamieson Tank High Purity Manganese Sulphate Monohydrate Project
A barren cover sequence was defined that includes sand, calcrete, and laterite. Density assumed to be 1.9 t/m3 Oxide domains were not considered. Wireframes were extrapolated one drill spacing along strike where open, or half section spacing between where mineralisation appears to diminish or the extrapolation was not possible. An approximate cut-off of 6% Mn was used to interpreted mineralisation along with logged lithology. Tonnage ranges for the Exploration Target were taken as the Leapfrog wireframe Volume x Density (1.9 t/m3) +/- 25% for the Upper and Lower Ranges. Grade ranges for the Exploration Target were taken as the mean of the raw sample data for the Lower Range, and the 75th percentile for the Upper Range. Grades are length weighted. Significant manganese drill intercepts and assays from the ChemX 2022 work programme were previously reported to the market in the ASX Release dated 23 June 2022. Geological Risks: The main geological risks include the poor mineralisation continuity on sections (across strike) given the limited drilling down dip to define each wireframe. Other risks include the absence of QAQC practices and the use of an assumed density in lieu of a measured density. Recommended Work Programme To mitigate the geological risks and test the validity of the Exploration Target, ChemX intends to undertake an infill drilling programme adopting all appropriate industry standard JORC compliance practices. These include but are not limited to, appropriate geological logging, data collection, assaying, survey, downhole density, QAQC practices, data management and Competent Person signoff of. A drill hole and interpreted manganese mineralisation outline plan is included as Figure 1. Schematic representative cross sections are included as Figure 3 and Figure 4. A summary of sampling techniques and data, estimation and reporting methodologies which support the Exploration Target is contained in JORC Table 1 which is included as Appendix 1 to this ASX release. Additional Manganese Prospect - Hodgins A review of historical drill data has confirmed the presence of significant manganese mineralisation on the Hodgins prospect. Significant grades include: 10m @ 29.2 % Mn (Drill hole HRC05 46 to 56m EOH) - 20m @ 23. 8% Mn (Drill hole HRC05 22 to 42m) - 11m @ 20.8 % Mn (Drill hole HRC03 9 to 20m) - 14m @ 16.8% Mn (Hole HRC01 32-46m). Further work is required to establish the grade and mineralisation continuity of the prospect. A drill hole location plan is included as Figure 5 and schematic cross section (Archer, 201) as Figure 6. A drill collar summary table is included as Appendix 3.