The Light Metals symposia at the TMS Annual Meeting & Exhibition present the most recentdevelopments, discoveries, and practices in primary aluminum science and technology. Theannual Light Metals volume has become the definitive reference in the field of aluminumproduction and related light metal technologies. The 2022 collection includes contributionsfrom the following symposia:• Alumina and Bauxite• Aluminum Alloys, Processing and Characterization• Aluminum Reduction Technology• Aluminum Reduction Technology Joint Session with REWAS: Decarbonizing the Metals Industry• Cast Shop Technology• Electrode Technology for Aluminum Production• Primary Aluminum Industry—Energy and Emission Reductions: An LMD Symposium in Honor of Halvor Kvande • Recycling and Sustainability in Cast Shop Technology: Joint Session with REWAS 2022