Abstract submission deadline is extended to 31 May 2023 due to the request from students and researchers who would like to attend MST2023 but are not ready to submit their abstract. It is an exciting opportunity for participants of MST2023 since there are the participants that already submitted from many countries, i.e. China, England, France, Indonesia, Malaysia, Singapore, South Africa, South Korea and Thailand. MST 2023 organizer welcomes you to Phuket, Thailand.  We are looking forward to meeting you at MST2023.