The first part summarises our end-of-training internship in a women’s group called ‘ifê-lêgbê’. In this part, after an introduction, we presented the group in which we did the internship, the activities we carried out there and an analysis of the group’s strengths, weaknesses, opportunities and threats (SWOT). It can be noted that this women’s group has proven experience in the production of gari and tapioca. The second part summarises our project to set up a production and marketing unit for fine gari in the commune of Adja-Ouèrè. In fact, this part allowed us to carry out technical and economic studies. These studies show that the project is technically feasible and economically profitable. Furthermore, indices such as the internal rate of return, which is 30.30%, the payback period of the invested capital, which is 5 months, and the net present value, which is 13.85%, enabled us to better analyse the economic profitability of the project.