Magnum’s Piracanjuba North target enters the resource-definition phase

Piracanjuba North moves from target generation to resource definition

Magnum Mining and Exploration Limited (ASX:MGU) has finished the broad drilling phase at Piracanjuba North in Brazil and is now concentrating its effort on a 32.5 square kilometre Plateau Zone. The shift matters because the company is targeting a maiden JORC Mineral Resource Estimate by the end of November 2026, although it allows up to two extra weeks if laboratory delays persist.

The quarter’s work included about 10,314 metres of auger drilling across 867 collars at the 15 September data cut, with the reconciled database later reaching 894 collars and 10,668 metres. A further roughly 2,000 metres of diamond drilling is being used to improve geological control, collect density and metallurgical samples and support later resource classification rather than add material to the initial resource dataset. The programme builds on the 10,000m drilling milestone, which earlier marked the project’s move towards a November resource estimate.

Large conceptual target carries a useful but important qualification

Magnum’s maiden Exploration Target covers approximately 700 million to 1.2 billion tonnes grading 500ppm to 650ppm whole-rock head TREO across three conceptual domains totalling about 44 square kilometres. That is a substantial exploration footprint, but it is not a Mineral Resource: the company says there has not been enough exploration to estimate one, and further work may not produce a resource.

The more encouraging signal is the composition of the material released in laboratory desorption testing. Across 200 qualifying Plateau holes, average desorbable TREO was 160ppm, while magnet rare earth oxides rose from 23.7% of head-grade TREO to 33.1% of desorbable TREO. Magnum says this fraction is richer in NdPr, terbium and dysprosium, but the figures remain initial screening results under an ammonium sulphate protocol. They do not measure process recovery, product quality or economic value.

Assay coverage continued to expand after quarter-end. A further 119 holes reported on 12 October lifted the analytical database to 492 holes, including 294 within the Plateau Zone, while four coherent high-desorption clusters covered about 7.19 square kilometres. The update strengthened the continuity story described in the 119-hole assay update, but the company still has to convert exploration patterns and laboratory screening into a compliant resource and workable metallurgy.

Cash runway puts the November milestone under pressure

Magnum ended September with A$1.976 million in cash after a quarterly net operating outflow of A$1.666 million and A$76,000 of investing outflows. Exploration and evaluation payments rose to A$1.403 million as the company completed Piracanjuba drilling and assaying and finished the Feirinha programme at Palmares. On the Appendix 5B calculation, that leaves an estimated 1.19 quarters of funding.

The company says spending should moderate as work moves from auger drilling into resource estimation, selective infill drilling and metallurgical testwork. It also says it expects to fund the next stage through a capital raise, asset divestment, strategic partnerships or a combination of those options. Preliminary joint-venture and divestment discussions are underway, but no transaction is certain. That funding question sits alongside the technical one: even a timely resource estimate will not by itself establish recoveries, economics or development funding.

Elsewhere, the U.S. Bureau of Land Management determined the exploratory drilling notice for the Parker Gold-Copper Project in Arizona complete, clearing a regulatory pathway towards first-pass drilling. Historical selective rock-chip results include grades as high as 178 grams per tonne gold and 18.30% copper, but those samples do not demonstrate continuous mineralisation or mineable widths. Magnum also strengthened its board, appointing Antonio Vitor Junior as Executive Chairman and Rowan Parchi as Executive Director, while Michael Davy remains a non-executive director.