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Which call topics will be supported?

We welcome advanced proposal drafts for the following call topics:

2025 Materials (2nd stage DL 14 Apr 2026)

HORIZON-CL4-2025-05-MATERIALS-42-two-stage: Innovative Advanced Materials (IAMs) for product monitoring, smart maintenance and repair strategies in the construction sector (RIA)
HORIZON-CL4-2025-05-MATERIALS-43-two-stage: Innovative Advanced Materials (IAMs) for robust, fast curing sealants and coatings for manufacturing and final assembly (IA)
HORIZON-CL4-2025-05-MATERIALS-51-two-stage: Development of safe and sustainable by design alternatives to Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) (IA)

2025 Twin-Transition (2nd stage DL 14 Apr 2026)

HORIZON-CL4-2025-05-TWIN-TRANSITION-11-two-stage: Enhanced logistics and operations of construction sites (IA)
HORIZON-CL4-2025-05-TWIN-TRANSITION-21-two-stage: Demonstrators for clusters of social circular enterprises (IA)
HORIZON-CL4-2025-05-TWIN-TRANSITION-35-two-stage: Developing and embedding upcycling technologies into viable business (IA)

2026 Materials-Production (DL 21 APR 2026)

HORIZON-CL4-2026-01-MAT-PROD-01: Advanced manufacturing for key products (IA)
HORIZON-CL4-2026-01-MAT-PROD-04: Optimise the usage of resources in a circular economy (RIA)
HORIZON-CL4-2026-01-MAT-PROD-05: Circular innovative advanced materials: facilitating the transition from design to markets (RIA)
HORIZON-CL4-2026-01-MAT-PROD-11: Innovative technologies and tools for exploration and data modelling of raw materials (RIA)
HORIZON-CL4-2026-01-MAT-PROD-12: Technologies for innovative extraction of critical raw materials (RIA)
HORIZON-CL4-2026-01-MAT-PROD-14: Improving availability of secondary raw materials through recycling (IA)
HORIZON-CL4-2026-01-MAT-PROD-23: Accelerating the discovery and development of chemicals and innovative advanced materials through digitalisation and artificial intelligence (IA)
HORIZON-CL4-2026-01-MAT-PROD-31: Efficient capture / purification / utilisation of CO2 for the production of competitive products (RIA)
HORIZON-CL4-2026-01-MAT-PROD-48: ‘Proof of market’ to improve valorisation and commercialisation of Horizon generated R&I results (IA)