The banking system was centralized early on under the Ministry of Finance, which exercised firm control over all financial services, credit, and the money supply. During the 1980s the banking system was expanded and diversified to meet the needs of the reform program, and the scale of banking activity rose sharply. New budgetary procedures required state enterprises to remit to the state only a tax on income and to seek investment funds in the form of bank loans. Between 1979 and 1985, the volume of deposits nearly tripled and the value of bank loans rose by 260 percent. By 1987 the banking system included the People's Bank of China, Agricultural Bank of China, Bank of China (which handled foreign exchange matters), China Investment Bank, China Industrial and Commercial Bank, People's Construction Bank, Communications Bank, People's Insurance Company of China, rural credit cooperatives, and urban credit cooperatives.