The document announces the 2nd International Conference on Anaerobic Digestion Technology: Sustainable Alternative Bioenergy (ADTech-SAB) to be held June 4-7, 2018 in Chiang Mai, Thailand. The conference will address traditional and innovative topics related to anaerobic digestion including energy and nutrient recovery, degradation of recalcitrant compounds, and process engineering. Keynote speeches will be given by experts in the field. The first conference in 2015 had 160 participants from 17 countries. The deadline for abstract submissions is October 6, 2017.