This book presents high-quality peer-reviewed articles from the 2nd International Conference on Biomass Utilization and Sustainable Energy 2022 (ICoBiomasSE 2022) organized by the Centre of Excellence for Biomass Utilization (COEBU), Universiti Malaysia Perlis (UniMAP), Malaysia. The theme of the conference "Emerging Technology for Future Sustainability" is chosen in view of the current revolution and rapid developments in the field of biomass innovation towards sustainable development. The contents are broadly divided into five parts: (1) sustainable biomass resources for decarbonizing the economy, (2) biomass conversion technologies for bioenergy and biofuels, (3) biomass conversion to intermediates and products, (4) bioeconomy sustainability, impacts and policies and (5) bioenergy integration. It provides a platform for students, professionals, researchers, academicians, policymakers and industries working in the areas of biomass utilization and sustainable energy to solve long-standing environmental issues for a healthier planet.