The 2019 TICST has three keynote lectures by Professor Ovchinnikov Sergei Gennadievich (Kirensky Institute of Physics, Russia), Professor George Grant Hoag (Department of Chemistry, California Insitute of Technology, USA) and Professor Pin Han Ho (Department of Electrical & Computer Engineering, University of Waterloo, Canada ). The participators will report their latest innovative works and give prospects on several research fields, including 1. Physics, Earth Science and Applied Physics 2. Mathematics and Statistics 3. Chemistry and Chemical Engineering 4. Computer Science and Information Technology 5. Communication, Networking and Signal Processing 6. Biology and Biotechnology 7. Science/Engineering Education and Communication Technology 8. Applied Science and Related Areas