Exploration zone
Historical exploration-zone description; not a resource, reserve or drill-defined boundary. Later project data control.
6 Oct 2025 sourceTechnical disclosure
Definitions and methods behind the results.
Use this page to distinguish head grade from recovery, understand the reported project areas and find the QA/QC, no-recovery and Qualified Person information behind the 8 September 2026 drilling results.
01
Project stage
Exploration, not a development decision.
Minas Americas is an exploration-stage rare-earth project in Minas Gerais, Brazil.
Minas Americas is an exploration-stage rare-earth project. Reported drill results are head-grade assays from drilled intervals; true thickness has not been determined. Selected diagnostic leach tests on trench samples do not establish metallurgical recoveries or commercial process performance. No mineral resource, mineral reserve, project economics, recovery estimate, production guidance or development decision has been disclosed. There is no certainty that further exploration will result in the delineation of mineral resources or mineral reserves, or that any development decision will be made.
Open the latest results02
Definitions
The language behind the numbers.
- TREO
- Total rare earth oxides as defined for the cited assay method and dataset.
- MREO
- MREO is defined as Nd₂O₃ + Pr₆O₁₁ + Dy₂O₃ + Tb₄O₇.
- HREO
- For the 8 September 2026 results, the sum of Y2O3, Dy2O3, Tb4O7, Ho2O3, Er2O3, Tm2O3, Yb2O3 and Lu2O3. MREO and HREO overlap through Dy2O3 and Tb4O7 and are not additive.
- DyTb
- The combined Dy2O3 and Tb4O7 heavy-magnet subset.
- Head grade
- Concentration measured in the original sample before metallurgical recovery is considered.
- Drilled interval
- Length measured along the drill hole. True thickness has not been determined for the reported intervals.
- Diagnostic solution result
- Concentration measured in solution after one defined laboratory test; not extraction or recovery.
- Recovery
- The fraction of the original inventory reaching a defined stream or product under a complete mass balance.
- Payable recovery
- The portion for which a customer would pay after specifications, impurities and commercial deductions.
03~5,500 ha >15 km² >3.5 km²
Spatial evidence
Three areas. Three meanings.
Mapped geological unit
Not drill-confirmed throughout and not a mineral-resource boundary.
17 Mar 2026 sourceDrill-result footprint
Not a mineral-resource boundary, reserve, tonnage estimate or proof of continuous mineralisation.
17 Mar 2026 source04
Data quality
Methods and review.
8 September 2026 drilling disclosure
Auger and RC samples were submitted to SGS Geosol Laboratorios S.A. Analyses used lithium-borate fusion followed by ICP-MS/OES determination. The QA/QC programme includes blanks, certified reference materials, field duplicates and laboratory controls.
MAV_RC_0012 contains a documented no-recovery interval from 30 m to 31 m. No composite crosses that interval. Incomplete holes and holes subject to an unresolved QA/QC hold were excluded from the reported results.
The scientific and technical information in the 8 September 2026 release was reviewed and approved by Carlos Leite, MAusIMM CP(Geo) (No. 1006695), an independent consultant to Magnes and a Qualified Person under NI 43-101.
Applies to the scientific and technical information in the cited 8 September 2026 source; it is not a blanket approval of unrelated website content.
Open the technical source05
Operational risk
Inputs that can change cost, permits and schedule.
Water, reagents, land, residues, radiological controls, infrastructure and community obligations depend on a project-specific process and development concept.
Those inputs remain to be measured against a defined route before project-level performance claims can be made.
Review the operational workstreamsTechnical boundaries established
Return to the investment decision.
Revisit the reported evidence or the principal risks that the next work programme is designed to test.