International Academic Partnership Framework Agreement and Application Agreement between Aix-Marseille University, Marseille, France / CDTA, which aims to supervise PhD students in the framework of the PNE, signed on 10/06/2014 for a period of (03) three years renewable on 2 years, expires on 10/06/2019. Memorandum of Understanding (MOU) between Universiti Teknologi Malaysia Johor Bahru (UTM) / CDTA, which aims to optimize collaborative research and project development, signed on 01/09/2016 for a period of (03) three years. Framework Cooperation Agreement between the University of Valenciennes and Hainaut-Cambrésis (UVHC), France / CDTA, with a view to contributing to the development of training and scientific and technological research, signed on 24/10/2013 for (05) five years. General Agreement between University of Technical Sciences,” Technische Universitat Dortmund”(TUD), Germany / CDTA, with a view to establishing relations and creating foundations for mutual cooperation and collaboration in the fields of CDTA and TUD, signed on 01 / 07/2013 (at CDTA) & 11/07/2013 (at the University of Technical Sciences) for a period of (05) five years. Cooperation agreement between the University of “Evry Val d’Essonne” (UEVE), France / CDTA, with a view to extending and deepening scientific and pedagogical relations and deepening their cooperation and contributing to the development of training and research scientific and technological, signed on 11/12/2017 at UEVE & 04/01/2018 at CDTA for a period of (05) five years renewable for approval by the competent authorities. African Union Agreement between CSIR-National Laser Center, South Africa / CDTA, to share knowledge and complementarity in the use of means (experience and modeling), signed in 2016 for a period of (02)two years. African Union Agreement between Ithemba LABS & NILES, South Africa & Egypt / CDTA, to share knowledge and complementarity in the use of means (experience and modeling), signed in 2019 for a period of two years. WBI-Algeria cooperation between the University of Liège, Belgium / CDTA, for the acquisition and sharing of knowledge on the prediction of the properties of materials and tools to use, signed on 2017 for a period of (03) three years.