Aankondiging • 21h
Greentech Metals Limited Reports Drilling Results and Advances Resource Re-Estimation for Munni Munni Pge-Cu-Ni Project
GreenTech Metals Limited reported results from the Phase 1 Munni Munni drilling programme demonstrating new, thicker PGE-Cu-Ni zones and providing expected validation of historic drilling through twin holes and core resampling. New infill drilling results have reported some of the highest individual metal PGE3 (Pt, Pd) + Au grades seen at the Ferguson Reef (8.8g/t PGE3, 0.65% Cu, 0.35% Ni), supporting GreenTech’s focus on shallow zones of high-grade PGE-Cu-Ni mineralisation. New Reverse Circulation (RC) and Diamond (DD) selected drilling results include: 12m @ 3.13 g/t PGE3, 0.30% Cu, 0.17% Ni from 90m; incl. 2m @ 8.37 g/t PGE3, 0.63% Cu, 0.34% Ni from 98m (26GTRC010), 11m @ 1.15 g/t PGE3, 0.15% Cu, 0.11% Ni from 116m (26GTRC011), 15m @ 1.70 g/t PGE3 from 24m; and 3m @ 0.34% Cu, 0.16% Ni from 22m (26GTRC007), 6m @ 2.26 g/t PGE3 from 173m; and 2m @ 1.75 g/t PGE3 from 183m (26GTRC006). Twin Hole Drilling provided direct validation of historic dataset: 11m @ 1.88 g/t PGE3, 0.14% Cu, 0.09% Ni from 526m (26GTDD004), 4m @ 2.29 g/t PGE3, 0.29% Cu, 0.16% Ni from 244m (26GTDD002), 6m @ 1.57 g/t PGE3 from 324m (26GTRCD003), 12m @ 1.08 g/t PGE3 from 186m (26GTDD001). Munni Munni resource re-estimation remains ongoing with wireframing of copper dominant domains prioritised and metallurgical testwork focused on production of a primary Cu-PGE concentrate being advanced to provide Net Smelter Return (NSR) parameters. Independent geochemical review of the Munni Munni PGE-Cu-Ni Project, conducted by Dr Scott Halley, a specialist geochemist with experience in magmatic sulphide systems, provided a new and compelling framework for understanding the broader untested potential of Munni Munni. The review identified discrete high-priority exploration targets around the base of the intrusion, interpreting the key controls on Cu-Ni-PGE sulphide mineralisation. A ground based Fixed Loop EM (FLEM) survey commenced in July and will test for conductors that may represent massive sulphide accumulations along the base of the intrusion. A heritage survey is scheduled to commence in mid-August to enable these targets to be drill tested. After the quarter (3 July 2026), GreenTech provided an update on mobilisation activities for its upcoming drill program at the Munni Munni and Whundo Projects. Drill rig contracted and mobilisation to site in late July 2026, with a second rig anticipated to join on availability of additional heritage cleared areas. 4,750m Reverse Circulation (RC) and 3,560m diamond drilling (DD), including wider-diameter diamond holes for metallurgical composite collection. Government co-funded Fixed-Loop Electromagnetic (FLEM) geophysical survey commenced in early July, over selected sections of the largely untested basal contact of the Munni Munni intrusion. Munni Munni heritage survey scheduled to commence 10 August 2026, to clear new drill locations and access across the mineralised footprint and high-priority basal zone target areas. Ahead of heritage survey completion, drilling to prioritise high potential Cu-Au extensions at Whundo, and drilling from existing cleared pads at Munni Munni. Further core resampling and reconnaissance sampling including infill soil sampling across basal contact to commence as part of site-based activities. The Munni Munni Project is associated with the Munni Munni layered mafic intrusion and represents one of Australia’s most significant occurrences of platinum group elements (PGEs). The mineralisation which comprises platinum, palladium, rhodium, gold and also copper and nickel is hosted by the large, laterally continuous Ferguson Reef. The Project is situated on granted Mining Leases (MLs) with an historical JORC (2004) Mineral Resource Estimate (MRE) of 23.6Mt @ 2.9 g/t 4E (PGE+Au) for 2.2Moz (HLX, 2002). This resource was historically defined in the period 1985–2002 with 91,077m of drilling comprising 328 drill holes. Assay results were reported for the Phase 1 drilling programme completed in March 2026. The drilling demonstrated thicker zones of mineralisation across the Ferguson Reef, including shallow zones of Cu + Ni mineralisation previously overlooked by the historic resource that assumed a 1.9g/t PGE cut-off grade. GreenTech will use the results of Phase 1 drilling and QA/QC to validate all prior drilling that supported the Munni Munni Historic Resource, allowing for re-estimation in accordance with the JORC Code (2012). In summary, 6 new DD/RC holes were completed and drill core from 16 historical drill holes was selected for sampling. In addition, a further 6 infill RC holes were drilled to provide information on resource continuity in selected areas. Technical details of the drilling and sampling are summarised below. Twin Hole Drilling: Six twin holes were completed. Three of these holes were completed by re-entering historical drill holes, reaming to target depth and using a wedge to drill parallel to the original hole. A further 3 drill holes were drilled from surface close to selected historic drill holes. Infill Drill Holes: Six RC holes were drilled in selected new areas to test for continuity of both PGE grade and reef thickness away from the previously reported historic drill holes. Historic Core Resampling: A total of 16 historically sampled drill holes were resampled using the remnant halved core. The samples were taken in a manner to match the original sampling intervals. This resampling was possible due to the excellent preservation of the historic core, which is stored at the Munni Munni site in a core shed and associated core farm. The preservation of this core is of immense value to the project and provided considerable savings to the drill program. GreenTech has engaged resource consultants, Snowden Optiro, to undertake QA/QC validation of historic resource data including the use of the newly generated data for comparative purposes. The validation work is intended to support the preparation of a Mineral Resource Estimate in accordance with the JORC Code (2012). High-grade PGE zones identified: Multiple Ferguson Reef zones up to +8.8g/t PGE3 have been intercepted along the strike of the Ferguson Reef. The design of upcoming exploration programmes will include infill and extensional drilling targeting additional areas with potential for reef thickening. Cu + Ni mineralisation under-recognised: Both new and historic assay results demonstrate Cu + Ni mineralisation presents outside of PGE Reef zones.