This book gathers the proceedings of the 9th International Conference and Exhibition on Sustainable Energy and Advanced Materials (ICE-SEAM 2023), held on 14 September 2023, in Putrajaya, Malaysia. It focuses on a diverse range of subtopics: Additive Manufacturing—Advanced Materials and Processes—Design and Optimization—Energy Efficiency, Energy Engineering and Management—Modelling and Simulation—Surface Engineering and Tribology—Thermal and Fluids—Vibration and Control. The content caters to academicians, researchers, students, practitioners working in the field of sustainable energy systems and advanced materials.