Prudential PLC (LSE:PRU)'s chief financial officer James Turner has quit following an investigation into a Code of Conduct issue relating to a "recent recruitment situation".
"The group sets itself high standards and Mr Turner fell short on this occasion," the insurer said in a statement.
Turner will be succeeded by Ben Bulmer, the current CFO, Insurance and Asset Management, and previous CFO of Prudential Corporation Asia.
"He has extensive experience of the group, having served in a variety of leadership positions across the finance function in Asia and London since joining in 1997," Prudential said.
Bulmer will report to Anil Wadhwani, chief executive officer, and continue to be based in Hong Kong.
Prudential stressed "there are no implications for the financial performance, reporting or operations of the business".
Shares fell 1.5% to 1,108p in early exchanges.