Petrofac, a specialist in the design, build and maintenance of energy infrastructure, said that Ayman Asfari has decided to retire as Group Chief Executive at the end of the year to focus on his family, health and charitable interests. Sami Iskander will join as Deputy Chief Executive on November 1, 2020 and, following a short transition period, will assume the role of Group Chief Executive from January 1, 2021, at ...