Andrew Mackenzie

Sir Andrew Stewart Mackenzie (born 20 December 1956) is a Scottish businessman, who is the chairman of Shell plc and formerly CEO of BHP Billiton, the world's largest mining company. He succeeded Marius Kloppers, on 10 May 2013, and was succeeded by Mike Henry, at the start of 2020. Early life Andrew Stewart Mackenzie was born in December 1956, grew up in Kirkintilloch, Scotland, and was educated at the University of St Andrews where he graduated with a first class bachelor's degree in geology in 1977. He went on to study at the University of Bristol where he was awarded a PhD in organic chemistry in 1981. Career Mackenzie was a postdoctoral research fellow with the British Geological Society. He was a Humboldt fellow and worked at the Nuclear Research Centre in Jülich, Germany. He published over 50 research papers as a scientist. In 1983, Mackenzie joined BP's research division. He worked his way to BP Finance, and then as head of capital markets. After 22 years at BP, he left as group vice-president petrochemicals.