HomeFeatures & AnalysisPlymouth Minerals reveals high grade potash assay results for Gabon project

Plymouth Minerals reveals high grade potash assay results for Gabon project

Gabon Plymouth Minerals has intersected shallow, high-grade sylvinite and carnallitite potash mineralisation in the final hole in its Phase 1 drilling programme, including:


  • 7 m at 30.0% KCl (Potassium chloride) (18.92% K2O – Potassium oxide) from 237.8 m
  • 0 m at 29.7% KCl (18.72% K2O) from 264.6 m


  • 9 m at 21.2% KCl (13.4% K2O) from 430.26 m
  • 8 m at 16.0% KCl (10.08% K2O) from 456.98 m
  • 3 m at 18.2% KCl (11.5% K2O) from 471.15 m, and
  • 4 m at 16.0% KCl (10.1% K2O) from 500.61 m

The previous drill hole also intersected wide zones of mineralisation including multiple seams of high-grade potash (sylvinite).

Plymouth is extremely pleased with the Phase 1 drilling results which have confirmed the presence of a large, high-grade potash footprint at the Alpha Target – mineralisation is indicated to be continuous between drill holes BA-002 and BA-003 more than 2.15 km away, and mineralisation remains open laterally in all directions.

An additional potash seam was intercepted in BA-003 which is highly positive and important as it enhances the potential to exceed the top end of the Alpha Target’s 262 Mt – 415 Mt @ 28.5% – 34.8% KCl and 18% – 22% K2O Exploration Target.

 The Phase 1 drilling supports the Exploration Target and increases the potential to convert the Target to Resources, and also highlights the project’s potential to replicate proven high-grade deposits in the Congo Basin including Kore Potash’s Kola deposit 70 km to the south. Kore’s current market capitalisation is ~$130m.

Planning for Phase 2 drilling is nearing completion which is aimed at delivering results to support a maiden JORC Resource estimate.

“This latest set of results and data retrieved from drill hole BA-003 has confirmed our belief that laterally extensive high-grade potash mineralisation would be present on the Alpha Target and in addition, this success so early on in the exploration programme, is extremely encouraging for Plymouth Minerals,” says MD Adrian Byass.

“Our intention now is to expand the mineralised footprint and deliver a mineral resource that we hope will exceed our expectations. Re-supply of consumables including drill casing and field preparation is currently underway for Phase 2 and the location of finalised new drill collars will be announced in the near term.”

About Plymouth Minerals’ potash projects

Plymouth Minerals owns 100% of the Banio and Mamana potash projects in Gabon, a politically stable and resource experienced country in West Africa. Both projects are drill proven, high-grade, shallow potash deposits and have good access to infrastructure with direct access to export ports.

Banio has a total Exploration Target of 6 Bt – 10.4 Bt @ 19.4%-22.7% KCl. Plymouth is focused on drill testing this Exploration Target. Brazil is a major consumer of potash and South America is the largest consumer of sea-borne potash (MOP) in the world. The West African coast and its potash deposits enjoy a significant shipping advantage over other major potash producing regions.