What was the nature of supply and marketing cooperatives in the 1960s and 1970s?

At first, shortly after the founding of New China, supply and marketing cooperatives were collective economic organizations. Later, some were classified as state-owned enterprises, and some were collective economic organizations; The nature of the supply and marketing cooperatives at the city and county levels is owned by the whole people, and township, village or collective ownership. There are also state-owned and collective enterprises in cities. There are also state-owned and collective companies under the Commercial Bureau. But the state and the collective are all in one system-the supply and marketing system. Supply and marketing cooperatives and commercial bureaus are directly under the control of the government finance Committee.