The renovation and extension project of the ZINA unit in Oued El Hajar, Kelibia, was successfully completed in only 6 months, managing to modernize and increase the production capacity of this tomato processing unit while handling significant technical and environmental constraints. This project included the execution of all necessary works for such a plant, including special works such as a settling tank, a reactor, a filtration unit, and a comprehensive deep process network with pipes and special fittings, taking into account the presence of a water table.