1. China Grain and Oil Business Network: It provides information on the prices and futures spot prices of various agricultural products, and is a large-scale professional consulting service website for grain, oil and feed in China.

2. Alibaba: There are many grain and oil wholesalers who can find primary sources through this platform.

3. benefit farmers. Com: It has abundant information on the supply of grain, oil and rice flour, and can directly connect with factories or traders through this platform.