Ukraine possesses rich farmlands (wheat, rye, flax, corn, barley, sugar beets, sunflowers and potatoes are the major crops), vast mineral resources (iron, manganese, coal, anthracite, aluminum, mercury, nickel, natural gas, oil, zinc, titanium and bauxite), a well-developed industrial base (steel, tractors, machinery, building materials, chemicals, fertilizers are major products) and highly trained labor. Yet, the economy remains in poor condition due to underdeveloped infrastructure, corruption, bureaucracy and political turmoil. On the production side, services are the biggest sector of the economy and account for nearly 68 percent of total GDP, of which the most important are; domestic trade (14 percent) and accommodation and food service (13 percent). Industry accounts for 22 percent of GDP and is divided by manufacturing (11 percent); and agriculture (10 percent).