| Dr | Mayara Aparecida | Rocha Garcia | Sao Paulo State University | Brazil | |
| Prof Dr | Salimeh | Kimiagar | Islamic Azad University Central Tehran Branch | Brazil | |
| Prof Dr | Jonas | Duarte | Federal University Western Pará | Brazil | |
| Prof Dr | CAMILLA DJENNE | BUARQUE MULLER | PUC-Rio | Brazil | |
| Mrs | Aléxia Thamara | Gasparin | Hilab | Brazil | |
| Mrs | Aléxia Thamara | Gasparin | Hilab | Brazil | |
| Assoc Prof Dr | Helton | Santiago | Federal University of Minas Gerais | Brazil | |
| Dr | Maziyar | Sabet | Petroleum and Chemical Engineering | Brunei Darrussalam | |
| Prof Dr | Ganka | Kossekova | Medical University of Sofia | Bulgaria | |
| Dr | Abel | TANKOANO | CNRST/IRSAT | Burkina Faso | |
| Dr | Gullit | Deffo | University of Dschang | Cameroon | |
| Dr | Bel Youssouf | G. Mountessou | Higher Teacher Training College, University of Yaoundé 1 | Cameroon | |
| Mr | Ateunkeng | Jean Gabain | University of Douala | Cameroon | |
| Dr | Angélique Nicolas | MESSI | Département de chimie organique, Université de Yaoundé 1 | Cameroon | |
| Mr | MATIETA | YEMENE VALAIRE | university of Dschang-Cameroon | Cameroon | |
| Prof | Charles | KEDE | University of Douala | Cameroon | |
| Dr | Jourdin | GONGWALA | Université de Maroua, École Normale Supérieure de Maroua | Cameroon | |
| Dr | Edouard | Mboumboue | University of Yaoundé 1 | Cameroon | |
| Dr | Sumera | Aziz | University of Alberta | Canada | |
| Ms | Josefa | Silva | Universidad de Concepcion | Chile | |