The 2019 Research, Invention, and Innovation Congress is the first RI2C which was held at the Arnoma Grand Hotel Bangkok, Thailand from 11 – 13 December 2019. This conference aims to provide a forum for researchers, academics, scientists, engineers, and industrialists to share their research works in three main categories, including

• Materials and Mechanics (MM)
• Electricals and Electronics (EE)
• Sustainable Sciences (SS)

Over 250 written versions of the research works were submitted to the conference editorial staff who were responsible for the review assignment The conference program was organized to allocate all submitted research works in six parallel oral sessions to provide sufficient time to be presented. Based upon the above categories, those manuscripts were published in Key Engineering Materials, IEEE Xplore and E3S Web of Conference. In the conference, we were honored to have an opportunity to attend the lectures from our Keynote speakers; Prof.Dr. Ashwani K. Gupta (University of Maryland), Prof.Dr. Yu-Shen Cheng (National Yunlin University of Science and Technology), Assoc.Prof.Dr. Rapeephun Dangtungee (KMUTNB), Mrs. Kalyaporn Ungsamatkosa (Robert Bosch Automotive Technologies (Thailand) Co., Ltd), and Invited speakers; Prof. Oh Seok Kwon and Prof. Chul Soon Park (Korea Research Institute of Bioscience and Biotechnology, South Korea), Prof. Joonwon Bae (Department of applied Chemistry Dongduk Women’s University, South Korea) and Prof. Dr.-Ing. Joachim Kaschta (Institute of Polymer Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany).