Results of the International Call for Expressions of Interestfor the pre-selection of technical and financial partners for SONAMINES S.A. in view of the development and commissioning of the Lomie-Nkamouna cobalt, nickel and manganese polymetallic deposit,

The General Manager of the National Mining Corporation (SONAMINES S.A.) hereby informs tenders of the International Call for Expressions of Interest (ICEI) No. 000002/AIMI/SONAMINES/DG of 9 January 2026, for the pre-selection of technical and financial partners for SONAMINES S.A. in view of the development and commissioning of the Lomie-Nkamouna cobalt, nickel and manganese polymetallic deposit, East Region of the Republic of Cameroon, as well as all stakeholders in the national and international mining sector, that following the evaluation of the tenders received, the pre-selection procedure is hereby declared VOID, as no tender met the eligibility criteria.

Committed to promoting the mining heritage of the Republic of Cameroon, SONAMINES S.A. prioritises top-tier strategic partnerships with companies or groupings with proven technical and financial capabilities.

SONAMINES S.A. is now open to negotiations with any investor with proven expertise and the technical and financial capabilities needed for the development of its project, in strict compliance with the Mining Code and best practices in the international mining industry. To this end, interested parties may email the corporation on the following address:projet-cobalt-nickel-manganèse@sonamines.cm

Fait à Yaoundé, le 18 AOUT 2026

The General Manager

Serge Hervé BOYOGUENO