Du Plessis worked in various management positions in the South African
Rembrandt Group from 1981, and in 1988 he became Group Finance Director of
Compagnie Financière Richemont. In June 2005, he was appointed non-executive chairman of the UK food business
RHM. Du Plessis is also a member of the governing body of the
International Chamber of Commerce UK. In March 2009, it was announced that he would be the new chairman of mining group
Rio Tinto. In 2014 he was appointed to the board of
SAB Miller and July 2015 took over as the chairman. On 9 March 2017,
BT announced that du Plessis would be taking over as chairman from November 2017. On 1 March 2021, du Plessis announced he was retiring. He was succeeded by
Adam Crozier. In December 2021, du Plessis was nominated by the UK Government to lead the UK's accounting and auditing regulator, the
Financial Reporting Council, through its transformation into the
Audit, Reporting and Governance Authority. In February 2022, du Plessis was confirmed as the FRC's new chair. Du Plessis was
knighted in the
2022 New Year Honours for services to telecommunications and business. ==References==