Belarus is a lower middle income country. The Belarus economy was largely suffered from the problems of rising inflation in the late 1990s.The economy is highly industrialized and largely dependent on the import of energy and raw materials. The present economy is running with a state control in the presence of free market system. Forestry and agriculture, notably potatoes, grain, peat, and cattle, are also important. Peat is the country's most valuable mineral resource. Other natural resource includes oak and maple. Belaruss economy is closely integrated with those of Eastern Europe and the other republics of the former Soviet Union, and the breakup of the Soviet Union was highly disruptive to it. It is used for fuel and fertilizer and in the chemical industry.