Welcome to the 50th International Congress on Science, Technology, and Technology-Based Innovation (STT50). It is a great honor to serve as the host institution for this prestigious science and technology conference at The Empress Hotel in Chiang Mai, Thailand, from November 25th to November 27th, 2024.

During the disruptive era, creativity has propelled various breakthrough scientific developments, such as robotics, artificial intelligence, and innovations inspired by nature. Regarding the role of the scientific community, this is an exceptional occasion to gather together innovators and scientists to exchange concepts, and to push the envelope in order to advance science and technology. Hence, we have chosen the motto "Science x Creativity: Crafting the World" for this occasion to bring to the attention of all participants at the "Chiang Mai Creative City," a renowned hub for creativity, surrounded by an inspiring natural setting. During the event, Chiang Mai will be in its ideal season thanks to the pleasant weather and the numerous traditional festivals.

Five STT congress events were previously hosted by our faculty in 1978, 1984, 1989, 1997, and 2012. It is a momentous occasion to commemorate the fifth decade of STT and the sixth decade of the Faculty of Science at CMU in 2024. Regarding academic activities and the reception of Thai and worldwide participants, we are diligently working towards ensuring that the congress is enjoyable for all participants. We believe that this congress will lead to remarkable scholarly achievements that will not only promote deeper integration of science and technology but also contribute to the progress of the nation's economy and society.

We hope that you will all enjoy the 50th International Congress on Science, Technology, and Technology-Based Innovation hosted by Chiang Mai University.

Distinguished Professor Torranin Chairuangsri, Ph.D.
Dean, Faculty of Science, Chiang Mai University