The 7th International Conference on Mining, Material, and Metallurgical Engineering (MMME’20) aims to become the leading annual conference in fields related to mining, material and metallurgical engineering. The goal of MMME’20 is to gather scholars from all over the world to present advances in the relevant fields and to foster an environment conducive to exchanging ideas and information. This conference will also provide an ideal environment to develop new collaborations and meet experts on the fundamentals, applications, and products of the mentioned fields. MMME is an acronym for International Conference on Mining, Material, and Metallurgical Engineering.