Project evaluation allows to resources optimisation, improving business's productivity and viable investments. The aim of this research was to provide technical and economic elements, to support decisions about the feasibility or not to run an agribusiness oriented to fertilizer's formulas production, used for potato and maize crops during establishment and maintenance in Toluca Valley, Estate of Mexico. The methodology used was project formulation and evaluation. The main markets were Toluca, Zinacantepec, Sultepec, Valle de Bravo and Temascaltepec municipalities. The discount rate was 13.1 %, with an estimated Net Current Value of $ 2 981 061, the Internal Return Rate (IRR) was 78.36 %, and the Modified Internal Return Rate (MIRR) was 181.44 %. The evaluation indicators exceed their critical values, reason of which, is feasible and viable to take an investment decision.