Collection of selected, peer reviewed papers from the 2013 2nd International Conference on Materials Science & Technology (ICMST 2013), April 11-12, 2013, Hong Kong, China. The 139 papers are grouped as follows: Chapter 1: Materials Engineering and Chemistry. Research and Technologies of Manufacturing and Processing; Chapter 2: Other Topics Related to Materials and Chemistry; Chapter 3: Applied Research and Development in the Field of Mechanical Engineering, Construction and Information Technologies.