Since the end of last month, with the boost of the fourth batch of corn purchasing and storage in the country, the price rebound of corn in Northeast China has gradually increased. Some traders believe that selling at preferential prices in the later period of the State Reserve will inevitably increase the market price, so they began to hoard a large number of goods, which led to active buyers in the corn market in the producing areas. With the rapid increase of acquisition speed and quantity, the cost of corn in the hands of traders has also increased, and some traders have exceeded their own purchasing and storage limits. At the same time, the current policy purchasing and storage task has not been completed, and there is only one month left before the deadline. It is expected that the purchase price of the northeast corn market will continue to rise. At present, the purchase price of corn by trading enterprises and grain merchants has gradually approached the policy price. Although it is supported by preferential price sale, the future price increase of corn should be limited due to the weak demand of downstream enterprises. Therefore, market participants still need to be cautious when buying corn in the market, and should not blindly chase after it to avoid the risks that may be brought about by falling prices. Generally speaking, under the control of national preferential purchasing and sales policies, the long-term trend of domestic corn market is still optimistic, but some areas in Huanghuai producing area of North China may still face the pressure of high callback. At the same time, due to the dual constraints of downstream enterprises' demand and poor efficiency, the price of corn in the afternoon is relatively limited, so its price is still mainly fluctuating in the short term.