FMI opines the Bio Based Epoxy Curing Agents was valued at USD 319.6 million in 2025. Sales are expected to reach USD 344.8 million in 2026 and USD 737.5 million by 2036. Phenalkamines / CNSL-based curing agents are expected to lead by Chemistry type with 34.0% share in 2026, and Cashew nutshell liquid derivatives are poised to dominate by Bio-feedstock source through 2036.