Prior to joining Vnesheconombank, Klepach was a deputy economics minister of Russia, and since 2004 the director of macroeconomic forecasting department of the Ministry of Economic Development and Trade of the Russian Federation. In that capacity, he dealt with the forecasting model inflation in the Russian economy, the financial situation of enterprises and industries, enterprises and the non-payment ratio of supply and demand money, market surveys of industrial
enterprises, and study strategies for their survival and restructuring. Klepach has published about 50 scientific publications.