Mr. Jack Garman reports

ENDEAVOUR REPORTS FATAL ACCIDENT AT MANA MINE

A contractor colleague of Endeavour Mining PLC passed away on March 6, 2026, as a result of injuries sustained in an incident that occurred during maintenance activities at the scrap yard at the Mana mine in Burkina Faso.

Mining and processing activities remain uninterrupted while Endeavour conducts a comprehensive internal investigation into the incident.

The health, safety and welfare of Endeavour Mining's colleagues are the company's top priority, and the company is deeply saddened by this news. Endeavour Mining extends its sincere sympathies and support to his family, colleagues and friends.

About Endeavour Mining PLC

Endeavour Mining is one of the world's senior gold producers and the largest in West Africa, with operating assets across Senegal, Ivory Coast and Burkina Faso and a strong portfolio of advanced development projects and exploration assets.

A member of the World Gold Council, Endeavour is committed to the principles of responsible mining and delivering sustainable value to its employees, stakeholders and the communities where it operates. Endeavour is admitted to listing and to trading on the London Stock Exchange and the Toronto Stock Exchange under the symbol EDV.