| Prof. Dr | Vladica | Ristić | Beopolis University, Belgrade , Serbia | Serbia |
| Prof. Dr | Marija | Maksin | International Research Academy of Science and Art | Serbia |
| Mr | Бојан | Грбовић | Факултет за примењену екологију Футура | Serbia |
| Prof. Dr | Aleksandar | Jovovic | University of Belgrade | Serbia |
| Dr | ALMOHANNAD | ALGHAMDI | Saudi Aramco | Saudi Arabia |
| Mr | Abdullah | Rajab | SMC | Saudi Arabia |
| Assist. Prof. Dr | MAHIR | SHARIF | Prince Sattam ibn Abdelaziz University | Saudi Arabia |
| Dr | MOUNIR | JAOUADI | Arab Open University | Saudi Arabia |
| Prof. Dr | Mohamed | Abdel-Megid | Mohamed Abdel-Megid | Saudi Arabia |
| Prof | Ahmad | Zamil | Prince Sattam bin Abdulaziz University | Saudi Arabia |
| Dr | Lateef Ahmad | Wani | King Faisal University | Saudi Arabia |
| Prof | Evgeny | Tretyakov | N. D. Zelinsky Institute of Organic Chemistry | Russia |
| Prof. Dr | Alexey | Beskopylny | Don State Technical University | Russia |
| Prof. Dr | Vladimir | Chigrinov | RUE/RUDN | Russia |
| Prof | Vladimir | Chigrinov | HKUST | Russia |
| Prof | Vladimir | Chigrinov | HKUST | Russia |
| Dr | Oana | Panazan | Transylvania University of Brasov | Romania |
| Ms | DEFTA | MONICA | Transilvania University of Brasov | Romania |
| Prof | Silvius | Stanciu | Dunarea de Jos University of Galati, Romania | Romania |
| Dr | Ana | Alves | SERQ, Innovation and Competence Forest Centre, 6100-711 Sertã, Portugal | Portugal |