Appointments, resignations and board changes at Africa's miners and the firms that serve them — logged as they are announced.
July 2026
Chief Executive Officer and Director, Gemfields
Gemfields said Sean Gilbertson would leave as CEO and director on 15 July 2026 by mutual agreement with the board. The announcement came with a warning that lower ruby grades, security problems and unpaid VAT refunds at Montepuez in Mozambique would weigh on output and cash flow, and the JSE-listed share price fell to record lows the following week.
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Out
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Interim
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