The BIOCHAR 2021 project is an applied research project whose objective is to demonstrate the technical and economic feasibility of a national sector for the manufacture of soil improvers and crop supports with high agronomic value incorporating biochars, and combining the technical capacities and know-how of composting platforms. The ambition is also to strengthen the competitiveness of territories based on “short circuit” channels for the high added value valorisation of plant co-products endemic to these territories.