Abstract
One-carbon (C1) biomanufacturing serves as a substitute for fossil-based feedstocks, aiming to de-fossilize chemical production and foster a circular carbon economy by recycling waste greenhouse gases. Here, we review the key economic and technical barriers associated with the commercialization of C1 biomanufacturing through case studies. Additionally, a viable roadmap to enhance cost competitiveness is unveiled, underscoring its potential to facilitate carbon neutrality as scalable and sustainable alternatives to traditional chemical production.