International seminar on green chemistry and sustainable engineering is organized by academics and researchers belonging to different scientific areas of the University of Echahid Hamma Lakhdar, El Oued, Algeria. The event has the objective of creating an international forum for academics, researchers and scientists from worldwide to discuss worldwide results and proposals regarding to the soundest issues related to Green Chemistry and Sustainable Engineering. This event will include the participation of renowned keynote speakers, oral presentations, posters sessions and conferences related to the topics dealt with in the Scientific Program as well as an attractive social and cultural program.