Biodiversity is fundamental for human life and vital for the functioning of ecosystems. Human welfare depends on biodiversity, as it provides natural services such as fresh water and clean air, biological resources such as medicinal plants and food, as well as economic benefits of industrial development. Recognizing the importance of biodiversity to the quality of life and the economy, Thailand has been ramping up the effort in research into biodiversity and sustainable utilization as well as conservation. The richness of biodiversity and intensive effort in diversity exploration and conservation in Thailand, therefore, serve as a perfect backdrop for IBD2019. IBD2019 will consist of scientific conference and comprehensive exhibition dedicated to showcase the work of various local and international research organizations, government agencies, universities, schools, non-profit organizations, local communities and private companies contributing to biodiversity research and conservation in Thailand and neighboring countries.