Following the successful first three  congress held in Gafsa, Tozeur and Sousse ( CMME2010, CMME2012 and CIMATEN2014) the Research Unit “Materials, Energy and Renewable Energy” in collaboration with the German Office of Academic Exchange Service (DAAD), the University of Gafsa and the Tunisian Association of Education, Scientific Research and Development (ATERSD) organizes the forth International Conference on Materials and Energy CIMATEN2016. It is a conference that is addressed to the academic and industrial research community (engineers, project managers, policy makers, business leaders …) who are interested in up-to-date, informative reviews and original articles in the valorization of materials and energy explorations. This conference aims at contributing to the promotion of natural resources (materials and renewable energies) and promoting fruitful exchange between academic researchers and industry.