The articles from ICECME 2021 collected in this book are devoted to empowering applied technology and innovation for sustainable development and cover the most recent research results, new ideas, and experiences in materials science, metallurgy, metalworking, and materials synthesis. The authors of the papers represent different countries, including Japan, Germany, Saudi Arabia, India, Malaysia, and Indonesia, thus the book gives information on the worldwide level of research activities in the field. This edition will be helpful to a wide range of engineers and researchers and will serve as a foundation for future collaborative research and publication.