COM 2021 will offer a broad range of topics in hydrometallurgy, light metals, materials and manufacturing, mineral processing, pyrometallurgy and sustainability. The conference will provide an international forum for both industrial and academic researchers to meet and discuss recent advances in the field. It gives us great pleasure to invite you to contribute and participate digitally to COM 2021. Programming will feature symposia on : -Challenges of Industry 4.0: sensors, control, automation and the use of digital information -Advances in Materials Manufacturing V - Dr. Xinjin Cao Memorial Symposium -Advances in Mineral Processing: Challenges and Opportunities -WALSIM IX: Water, Air, and Land Sustainability Issues in Mining and Metal Extraction -Light Metals for Harsh Environments -Advances in Additive Manufacturing of Light Metals -Chloride Metallurgy -Corrosion and Environmental Degradation of Materials The virtual conference will feature daily live speakers with several panel discussions where attendees can ask live questions and chat. Furthermore, the conference will offer a series of recorded on-demand lecturers, a certificate of attendance, and full Peer-Reviewed Proceedings. In addition, the conference will have add-on professional short courses to enhance your learning. To celebrate the 60th Anniversary, we will also have fun by hosting our annual trivia challenge live online and host the annual Awards gala. Venue details: Online