Oilseed and protein crop supply chains bring together a set of crops intended for the production of vegetable oils and proteins, as well as numerous co-products recovered in human food, animal feed and industrial uses. In France, they play a structuring role for agriculture, the agri-food industry, energy and the bioeconomy, while being strongly integrated into international trade. These chains are characterised by relatively standardised processing routes — particularly around crushing operations — and by a close articulation between main products and co-products, which conditions their outlets and their economic balance.