In course of the Economic Governance for Equitable Growth (EG4EG)-project, Anett Großmann and Frank Hohmann assisted the Ministry of Finance (MoF) in Mongolia. During a 3-weeks training in Ulan Batar (Mongolia), a model building plan for a Mongolian macro-econometric input-output model was developed. Together with the MoF staff and training participants amongst others from Mongolian research institutions as well as the statistical office, data requirements were discussed and data availability checked. Afterwards, the participants were trained in preparing a unified database by applying Visual Basic for Applications (VBA in Microsoft Excel). The database is an important prerequisite for building a macro-econometric input-output model for Mongolia.