He succeeded Marius Kloppers on 10 May 2013 .
Andrew Stewart Mackenzie ( born 20 December 1956 ) FRS is a Scottish businessman , CEO of BHP Billiton , the world 's largest mining company .
Andrew Stewart Mackenzie succeeded Marius Kloppers on 10 May 2013 .
Andrew Stewart Mackenzie ( born 20 December 1956 ) FRS is a Scottish businessman , CEO of BHP Billiton , the world 's largest mining company .