Orosur Mining Inc Announces Lithium JV, Nigeria

· First results from mapping and sampling program on first licence.

· Abundant pegmatites evident, with LiO2 results in excess of 2%, analysed by way of XRF and LIBS.

· Two additional licences confirmed, expanding land position in the key Lithium districts to 533km2.

LONDON, UK / ACCESSWIRE / November 28, 2023 / Orosur Mining Inc. ("Orosur" or the "Company") (TSXV:OMI)(AIM:OMI), is pleased to provide an update on exploration progress at its new Lithium West Joint Venture ("the Project) in Nigeria,.

Foto: Accesswire

Details
As announced on Oct 16^th 2023, the Company has entered into a Joint Venture ("JV") with Nigerian company Jurassic Mines Ltd ("Jurassic"), whereby Orosur, via a new 100% owned UK subsidiary, Lithium West Limited ("Lithium West"), may earn up to 70% equity in the Project by spending US$5m over 5 years in two phases:

1. Phase 1 - Lithium West can earn 51% equity in the Project by spending a total of US$3m over a maximum of three years.

2. Phase 2 - Lithium West can earn an additional 19% equity in the Project, up to a total of 70%, by spending an additional US$2m over a maximum of two years.

Results
Immediately upon signing of the JV, the Company's exploration teams mobilised to site to begin preliminary reconnaissance mapping and sampling, beginning on the western most Exploration Licence EL 43953. The decision to commence on EL 43953 was taken purely for logistical reasons, with no consideration of prospectivity.

The objective of the program was to undertake preliminary geological mapping of the licence, in order to confirm the regional interpretation and prospectivity assessment that had led to its selection and to take a number of samples for assay with a view to planning further work.

Several hundred samples of various outcrops were taken, with approximately 70 then being analysed by way of XRF and LIBS for lithium content as well as a number of other pathfinder elements.

XRF/LIBS are not as accurate as laboratory chemical assay, but as no certified geochemical laboratory yet exists in Nigeria, XRF/LIBS provide a faster, cheaper and sufficiently accurate alternative for the purpose at hand.

Geological mapping quickly identified that the licence hosted numerous swarms of potentially lithium bearing pegmatites, consistent with granitic and gneissic lithologies and the major country scale "schist belt" structures, that had been postulated as the primary controlling structures.