This report analyzes developments in bio-based adipic acid technology. Adipic acid derived from bio-based sources can be converted into a number of chemical products, most notably polyamides (e.g., Nylon 6,6), and other polymers - with potential to improve the GHG footprint. The study assesses the technical, commercial, and economic aspects of producing adipic acid via bio-based sources, and also investigates future capacities.