BIODEX-SA is the first company to collect waste oils and transform them into biodiesel in Africa, as well as the first in Tunisia to earn RSB certification. The BIODEX-SA biodiesel plant converts used cooking oil to biodiesel, which is then sold to the European market. ”BIODEX-SA is proud to be the first RSB-certified organisation in Tunisia. RSB certification shows our commitment to respecting the sustainability criteria of waste and the environment,” said Pr. Dr. Mounir Bezzarga, BIODEX-SA’s CEO.