This paper analyses the patterns of pig waste trade, and estimates the possible changes in the context of existing industrialization process. The analysis is based on a synthesis of interviews carried out between April and October 2005 with farmers and local stakeholders in four districts of Thai Binh province, Vietnam. At present, pig manure is traded in its scraped and unprocessed form; it is being used as fertilizers and fish feed; its transport is limited, so exchanges are restricted to a small area. However, links between people are very strong, which guarantee a very strong mutual trust between people, as well as between stakeholders, but this is also what makes exchanges so limited. Thus, to organize this processing and to guarantee markets for manure, a large-scale awareness and extension campaign is necessary among the technical departments of local authorities and with farmers.