Ramaco Resources, a pure play met coal miner with operations in West Virginia and Pennsylvania, has discovered new potential magnetic rare earth elements at its Brook mine.

Colombia-focused explorer has made four notable discoveries, including the Apollo high-grade porphyry system.

O3 Mining expects to release an initial mineral resource estimate by the end of the second quarter of 2023.

The updated 2023 MRE comes after the company completed an additional 40,000 metres of infill drilling.

The assays were for hole FCD-22-023 drilled outside the extent of the known mineral resource.

A wildcat drill hole had also intersected a broad new mineralized breccia to the east.

One hole intersected exceptionally high gold grades of 1,636 and 697 g/t, both over 1 metre.