Mining Exploration
The early-stage process of searching for and evaluating mineral deposits through sampling, mapping and drilling, carried out before any decision to build a mine.
Covered in 5 MetalsCost.com News Intelligence articles, most recently on September 26, 2026.
Coverage
Spark Energy Hits Project-Record Gallium Grade at Boa Vista, Brazil
Spark Energy Minerals has returned a project-record gallium grade at its Boa Vista target in Brazil's Lithium Valley, expanding the gallium-rare earth footprint of its Arapaima project. Surface sampling also defined a new, roughly two-kilometre anomalous zone alongside the company's first discovery at Cruzeta.
Rare Earths Americas Doubles Drill Fleet at Brazil's Homer Project
Rare Earths Americas is doubling its drill fleet at the Homer project in Brazil after early assays returned rare earth zones enriched in dysprosium and terbium, the elements most critical to permanent magnets. The company targets an initial resource estimate for the site in 2027.
Rainbow Rare Earths Taps Neo to Design Phalaborwa Separation Circuit
Rainbow Rare Earths has selected Neo Performance Materials to design the separation circuit at its Phalaborwa rare earths project in South Africa, handing Neo offtake rights to future output. The project processes legacy phosphate-fertiliser waste already sitting at the surface.
Bahia Metals Files NI 43-101 Report for 313-Million-Tonne Nickel Find
Bahia Metals has filed an independent NI 43-101 technical report defining 313 million tonnes of inferred nickel-copper-cobalt resource at its Mangueiros project in Bahia state, Brazil. The filing is a formal regulatory step that clears the way for a preliminary economic assessment.
Atlantico Finds Gallium in Every Sample as It Maps 12 Rare Earth Targets in Brazil
A clean multi-commodity target map across gallium, rare earths and lithium gives Atlantico a stronger basis to justify and fund a maiden drilling programme.
