The Etéké Project is 80% owned by Managem and consist of mining lease which cover an area 810 km² awarded in April 2022. The initial exploration permit covered an area of 1,408 km² was awarded in August 2007, and was the subject of exploration activities and development work that led to the award of the operating permit.
The concession is located in the Ngounié province, 420km from the capital Libreville, in the Etéké gold district, known as Gabon's first gold district. Gold mineralization is of orogenic gold type, of Paleoproterozoic age and related to the Eburnean orogeny.
Exploration work includes airborne, geochemistry, mapping, prospecting, trenching, shallow auger drilling and core drilling for reconnaissance and delineation. 
Managem's work on the permit resulted in the identification of an Indicated Resource of 674,000 ounces and an Inferred Resource of 207,000 ounces. The pre-feasibility study carried out concluded on a Probable Mineral Reserve of 452,000 ounces of gold on three (3) deposits: Dondo Mobi, Dango and Ovala.
The external pre-feasibility study is based on open-pit mining of three (3) deposits: Dondo Mobi, Dango and Ovala.  For an initial CAPEXt of US$138 million, a gold price of US$1,700/Oz and a treatment recovery of 93%, gold production is 422,000 ounces, the NPV of the project is US$131 million, the IRR is 36%, the AISC is US$704/Oz and the payback period is 2.8 years.
Aiming to improve the project fundamentals,  Managem continue to extend mineralization beyond the current deposits, and drill selected advanced exploration targets enhanced by ML data processing.