The Circular Bio-based Europe Joint Undertaking 2025 call will open on 3 April 2025. With a budget of €165 million, this call supports projects advancing competitive circular bio-based industries in Europe. Explore the 13 call topics, join the Info Day on 3 April and start preparing your proposal based on the CBE JU Annual work programme 2025 document (PDF download). 

The two calls below have closer links to construction: 
HORIZON-JU-CBE-2025-RIA-03 Alternative biomanufacturing routes for natural and synthetic rubber
• Total indicative budget for the topic is EUR 6 million
• RIA, TRL-Level 4-5 at the end of the project
Projects results are expected to contribute to the following expected outcomes:
• Wider availability of sustainable sources of natural and/or bio-based synthetic rubber supporting European industrial competitiveness and strategic autonomy across various sectors of the (bio)economy.
• Competitive and robust production routes for natural and/or synthetic rubber, with high environmental performance, resource efficiency and sustainability.
• Biomanufactured alternatives to conventional natural and/or to fossil-based synthetic rubber meeting market requirements for targeted final applications

HORIZON-JU-CBE-2025-IAFlag-04 Retrofitting of industrial plants towards higher-value bio-based products
• Innovation Action, TRL 4-5, at the end of the project
• Total indicative budget for the topic is EUR 20 million 
Projects results are expected to contribute to the following expected outcomes: 
• Full-scale biorefinery based on a retrofitted industrial plant towards bio-based products with a higher value than the ones produced in the old configuration. 
• Deployment of a competitive, replicable, regional/local business model, encompassing all segments of the value chain, centred on the reconfiguration of the targeted industrial site. 
• Improvement in overall sustainability and circularity compared to the old configuration. 
• Increased value for society, in terms of direct and indirect employment at local and regional levels, considering also maintaining jobs in plants risking closure/downsizing.