The International Halal Science and Technology Conference (IHSATEC) is an international conference devoted to various spectrums of Halal Science and Technology (Industry and Business) for oral and poster presentation in the Academic Presentation Session of Thailand Halal Assembly 2021. The general objective of the conference is to provide a platform and stimulate discussions on issues surrounding Food Science, Nutrition, Food Safety, Management, Natural Products, etc. Topic included in the proceeding are: Food Science and Nutrition, Food Safety and Management, Natural Products and Bioactive Compounds, Biotechnology and Molecular Biology, Blockchain and Internet of Things (IoT), Health and Physical Science, Nanoscience and Technology, Environment and Green Technology, Post COVID-19 Management, Digital Marketing and Data Driven Marketing, E-Business and Mobile Commerce, Artificial Intelligence (AI), Islamic Finance, and Cosmetic Science.