| | | | |
| Wakhidin | PT. Indonesia Power Priok POMU | Indonesia | • MLA I |
| Suwoko | PT PJB UP Muara Tawar | Indonesia | • MLA I |
| Darmawan | PT. Pembangkitan Jawa Bali (PJB) | Indonesia | • MLA I |
| Theophilus Segatike Phasha | Anglo American | South Africa | • MLA I |
| Sharizan Bin Ramli | Malaysian Refining Company SDN BHD | Malaysia | • MLA I |
| Vibhor . | Tata Steel | India | • MLA III • MLA II |
| Teddy @ Erick Alfred | Petronas | Malaysia | • MLA I |
| Ahmad Syairazi A Rahman | Petronas | Malaysia | • MLA I |
| Narenthiran A/L Tharmareddy | kellogg | Malaysia | • MLT I |
| Suwew A/P Thavil | Metalux Oil Analysis Sdn Bhd | Singapore | • MLA I |
| Viggo Aanonsen | MHWirth | Norway | • MLA I |
| Rodney lee Aastrom | Basin Electric Power Cooperative | USA | • MLA II • MLA I |
| Mohammad Aatif | Baker Hughes | India | • MLA III • MLA II • MLE |
| Mohd Khairi Asyraf Ab Hamid | Bumi Armada Berhad | Malaysia | • MLA II |
| Muhammad Faiz Bin Ab Malek | Malaysian Refining Company SDN BHD | Malaysia | • MLA II • MLA I |
| Ahmad Faizal Bin Ab Talib | Yinson Lavender Operations Sdn Bhd | Malaysia | • MLA I |
| Dayang Nor Ainin Sofiya Binti Abang Mortadza | Kinsajasa Sdn. Bhd. | Malaysia | • MLA I |
| Amr Hassan Abayazeed | Egyptian Petrochemicals Company | Egypt | • MLA I |
| Feras Abbas | Unknown | Saudi Arabia | • MLA I |
| Yousif Abbas | Bahrain Petroleum Company; BAPCO | Kingdom of Bahrain | • MLA I |
| Muhammad Noman Abbas | Unknown | Pakistan | • MLA II • MLA I • VIM • VPR |
| Adnan Abbas Abdullah | Kuwait Oil Company | Kuwait | • MLA I |
| Elamin Abbashar | Afton Chemical Corporation | U.A.E. | • MLA II • MLT I |
| Michael Thomas Abbate | RelaDyne | USA | • MLT I |
| Thomas Abbate | RelaDyne | USA | • MLT I |
| Jared Abbot | Rio Tinto | Australia | • MLA I |
| Earl Abbott | RelaDyne | USA | • LLA II • MLT I |
| Billy Abbott | Georgia Pacific | USA | • MLT I |
| Abdalla Abd El Monteleb Abd El Lateef | Cooperative Petroleum Company (CPC) | Egypt | • MLA II |
| Mostafa Mohamed Abd El-Haleem | EPROM | Egypt | • MLA I |
| Mohamed Atta Abd El-lattif | Cooperative Petroleum Company (CPC) | Egypt | • MLA II |
| Ahmed Hussein Abd Elmoneam | Gastec | Egypt | • MLA I |
| Omar Mohamed Abd Elsalam Aziz | Petromaint | Egypt | • MLA I |
| Elifazlin Binti Abd Fattah | PETRONAS Gas Berhad | Malaysia | • MLA III • MLA II • MLT I |
| Muhammad Aslam B Abd Gafar | Colt Engineering Sdn Bhd | Malaysia | • MLA I |
| Ahmad Sofian Bin Abd Ghani | Enhanced Performance Solutions | Malaysia | • MLA I |
| Nurhazwani Shahirah Binti Abd Jamil | PUSPEKA | Malaysia | • MLA III • MLA II |
| Mohamad Khairolnizam Abd Karim | Pengerang Refining | Malaysia | • MLA I |
| Mohamad Khairil Izwan bin Abd Khalid | Vale Malaysia Minerals | Malaysia | • MLT I |
| Syahril Rafieq Abd Manab | Petronas | Malaysia | • MLA I |
| Fatin Myra Bt Abd Manan | Metalux | Malaysia | • MLA II |
| Ahmad Lokman Abd Rahim | Malakoff Corporation | Malaysia | • MLA I |
| Nydia Nathasha Binti Abd Razak | PUSPEKA | Malaysia | • MLA II |
| Muhammad Luthfi Muslim Bin Abd Razak | Tenaga Nasional Berhad | Malaysia | • MLA I |
| Mohammed Iraqi Abdallah | Cooperative Petroleum Company (CPC) | Egypt | • MLA II |
| Mahmoud Abdallah Abou-khattab | Cooperative Petroleum Company (CPC) | Egypt | • MLA II |
| Sami Abdel Rahman Abdel Razeq Mdallal | Jordan Bromine Company (JBC) | Jordan | • MLT I |
| Abdel-Aty Abdallah Abdel-Aal | Khalda Petroleum Company | Egypt | • MLA I |
| Mohamed Farrag Abdelalim Farrag | Enova by Veolia | U.A.E. | • MLA I |
| Ahmed Fahmy Abdelaziz | Khalda Petroleum Company | Egypt | • MLA I |
| Mohamed Emad Abd-Elaziz | BAPETCO | Badr Petroleum Company | Egypt | • MLA I |
| Sharaf Eldeen Abdelbagi Adam | Petrobash. M.A Co. Ltd, | Sudan | • MLA I |
| Amjed Amin Abdelgail Mustafa | Chevron AlBakri Lubricants | Saudi Arabia | • MLA III • MLA II • MLA I |
| Amr Mohamed Mahrous Abdelghani | Saudi Aramco | Saudi Arabia | • MLA I |
| Ehab Abdelghany Ibrahim Abdelghany | Gastec | Egypt | • MLA I |
| Mostafa Mohamad Abdelhady | Petrobel | Egypt | • MLA I |
| Hussein Galal Abdelhamid | Unknown | Egypt | • MLA I |
| Mahmoud Yahia Abdelkader | EPROM | Egypt | • MLA II • MLA I |
| Khaled Ahmed Abdelmoniem | Khalda Petroleum Company | Egypt | • MLA I |
| Hassan Abdelsalam Abdelnabby | Zeina Group | Egypt | • MLA I |
| Hesham Fathy Abd-Elnaby | Unknown | Egypt | • MLA I |
| Hatem Atef Abdelhalim Abdelraouf | Khalda Petroleum Company | Egypt | • MLA I |
| Mohamed Gamal Abd-El-Sadek | Quality Oil for Lubricants and Petroleum Derivatives | Egypt | • MLA II |
| Mosab Abdelal Abden Mohamad | Oman Oil Marketing Company | Oman | • MLA II • MLA I |
| Ahmed Mohamed Elsayed Abdo | Midor | Egypt | • MLA I |
| Mohd Nazim Shah Bin Abdol Rahman | Petronas Chemicals Methanol SDN BHD | Malaysia | • MLA I |
| Mohd Fadzli Abdollah | Universiti Teknikal Malaysia Melaka | Malaysia | • MLA I |
| Mahmoud Abdou | Methanex | Egypt | • MLA II |
| Mohamed Abdalfatah Abdrabouh | Unknown | Egypt | • MLA I |
| Siti Maryam Abdul Aziz | Jimah O&M Sdn Bhd | Malaysia | • MLA III • MLA II |
| Amnan Azhan Abdul Aziz | Unknown | Malaysia | • MLA I |
| Hamsatun Abdul Ghani | Sadara Chemical Company | Saudi Arabia | • MLA III • MLA II • MLT II • MLT I • MLE |
| Mohd Harizarul Azlan Abdul Halim Lau | Malakoff Corporation | Malaysia | • MLA I |
| Muhammad Azlan Shah bin Abdul Latif | PrefChem | Malaysia | • MLA I |
| Khairul Ashraf Bin Abdul Latif | Port of Tanjung Pelepas | Malaysia | • MLA II |
| Mohamad Khairi Bin Abdul Muin | kellogg | Malaysia | • MLT I |
| Muhammad Abdul Nasir | Total Energies | U.A.E. | • MLA I |
| Muhammad Rizam Bin Abdul Rahman | Malaysian Refining Company SDN BHD | Malaysia | • MLA I |
| Khairul Hazwan bin Abdul Rahman | PETRONAS Gas Berhad | Malaysia | • MLA II |
| Mohd Kamarularifin Abdul Rahman | Pengerang Refining | Malaysia | • MLA I |
| Zaty Hazwanie Binti Abdul Rais | Glide Technology SDN BHD | Malaysia | • MLA I |
| Mohd Annafi Bin Abdul Razak | Kinsajasa Sdn. Bhd. | Malaysia | • MLA I |
| Mohammed Ali Abdul Razak | Moove Lubricants | UK | • MLA II • MLA I • MLT I |
| Mohammad Abdulhaleem | Saudi Aramco | Saudi Arabia | • MLA I |
| Muhannad Abdulhamid Alhazmi | Saudi Aramco | Saudi Arabia | • MLA I |
| Mohd Azman Bin Abdullah | Universiti Teknikal Malaysia Melaka | Malaysia | • MLA III • MLA II • MLT I |
| Azhar Abdullah | Petronas Lubricants Marketing Sdn. Bhd. | Malaysia | • MLA III • MLA II • MLE • VIM |
| Hilmi Abdullah | Malaysian Refining Company SDN BHD | Malaysia | • MLA I |
| Mohd Nazri Abdullah | Kinsajasa Sdn. Bhd. | Malaysia | • MLA II |
| Hamad Abdullah Almugarry | Saudi Aramco | Saudi Arabia | • MLA I |
| Saad Khalifah Abdullah AlOmar | Saudi Aramco | Saudi Arabia | • MLA I • MLT I |
| Ruslan Abdullayev | KAZ Minerals | Kazakhstan | • MLA I |
| Akram Mouazy Abed | Petronas | Iraq | • MLA I |
| Sylvie Abingeneye | Laurentide Controls Ltd. | Canada | • MLA I • MLT I |
| Nadiya Abitova | KAZ Minerals | Kazakhstan | • MLA I |
| Belal Ibrahim Aboelfetouh | TCI Sanmar Chemicals S.A.E | Egypt | • MLA II • MLA I |
| Moataz Mohamed Abouelhamd | Khalda Petroleum Company | Egypt | • MLA I |
| Amr Zakaria Khalifa Aboutaleb | Unknown | Egypt | • MLA II • MLA I |
| Simon Abraham | Sadlers | USA | • MLA I |
| Andrew Abram | Genesis Alkali | USA | • MLT I |