Md Arif Mahmood, a Malaysian aged 52, holds a Master of Business Administration from  Massachusetts Institute of Technology, USA and a Bachelor of Science degree in Electrical Engineering from Boston University, USA. He joined PETRONAS in 1984 and is currently the Executive Vice President and Chief Executive Officer, Downstream Business.  Prior to assuming this position, he has held various senior positions in PETRONAS including the Senior Vice President, Corporate Strategy and Risk, Vice President Oil Business, Managing Director/Chief Executive Officer of ASEAN Bintulu Fertilizer Sdn Bhd, Senior General Manager of Retail Business Division, PETRONAS Dagangan Berhad and General Manager (Gas Processing – Plant B), PETRONAS Gas Berhad. Currently, he is also a member of the Management Committee of PETRONAS and he sits on the Board of several other companies within the PETRONAS Group.