Tan Sri Dato' Seri Shamsul Azhar bin Abbas joined Petroliam Nasional Berhad (PETRONAS) in 1975 and served in various capacities during his 40 years tenure with the organisation including his last held position as President and Chief Executive Officer of PETRONAS from 2010 to 2015.

During the tenure of his leadership he guided PETRONAS in undertaking strategic landmark projects (both for PETRONAS and Malaysia), such as the Pengerang Integrated Refinery and Petrochemical Project (RAPID), the Bintulu Train 9 project, the construction of 2 PETRONAS Floating Liquified Natural Gas (LNG) facilities and Malaysia's first Regasification terminal in Malacca. 

Tan Sri was the President/Chief Executive Officer of MISC Berhad from 1 July 2004 until 31 December 2008 and was its Chairman from February 2010 to 1 August 2011. He also served as Pro-Chancellor of Universiti Teknologi PETRONAS, a member of the Board of Trustees of the Razak School of Government and the Chairman of the National Trust Fund of Malaysia. He was the Chairman of MMC Corporation Berhad and MMC Ports Holdings Sdn Bhd from 16 July 2015 to 31 August 2020. He retired as the Chairman of Sapura Energy Berhad on 7 May 2022.

Enra Group Berhad

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