Duhe, who has worked at Newcrest Mining, Woodside Energy, Shell and Exxon Mobil, replaces Anthea McKinnell, who is leaving the gas and oil exploration firm for family reasons.
Tonkens was previously chief financial officer at Building Materials Europe and replaces Stephen Pope, who is transitioning to a strategic advisory role.
Winnie Chen is due to onboard in Singapore from September, replacing recent retiree, Faisal Ameen, as regional leader of the region’s Global Payments Solutions division.
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