In the contemporary era, state control of food has become increasingly important. The basic reason is that the world's food market has been controlled by monopoly capital. These four large grain multinational companies are abbreviated as "ABCD". They are the American ADM, American Bongji , American Cargill and French Louis Dreyfus .

The four major grain merchants control 80% of the world's grain transaction volume, which determines the price of world food. They do not have much social moral responsibility except for profit . If they do not firmly hold the jobs of 1.4 billion people in the hands of the Chinese, they will be handed over to the hands of the US monopoly capital.

Here we only take American ADM company as an example:
At the beginning of the 20th century, Archer and Daniel of Minnesota, USA were engaged in the linseed oil pressing industry. After that, the industry expanded to flour, food addition, feed, special food, cocoa and nutritional products industries. It is the promoter of genetically modified grain . ADM is a huge multinational company with a total of about 270 manufacturing factories, distributed all over the world. In addition, it has also entered industries such as agricultural and grain reserves, transportation and transportation; ADM is also the world's largest producer of activated fuel ethanol, investing a large amount of grains into ethanol production, exacerbating the surge in world food prices.

According to the latest statistics from the Food and Agriculture Organization of the United Nations, global food prices have risen by 40%. The Food and Agriculture Organization of the United Nations has issued an alarm on food shortage for the first time in the 40 years since its establishment. Mauritaria in Africa, Central America Haiti and Mexico, Indonesia and Philippines in Asia, riots occurred due to rising food prices.
During the November SARS epidemic in 2002, the world's food was in owed, and the four major grain merchants were in danger. A large amount of stockpiling wheat and rice was used to rush the prices of wheat and rice, soaring from US$291 in 2005 to US$1,334 in 2008. The food industry in many countries went bankrupt directly.

China's population is 1.4 billion, and it requires 2.8 billion jin of grain a day, nearly 100 billion jin a year. If the price quadrupled like last time, it is an astronomical figure.
Due to the high attention of our government and the central grain reserve management, our country has always controlled the prices of wheat and rice very low. The four major grain merchants raised the prices of rice and wheat, so our country took the initiative to sell and try to lower the prices. my country's corn continues to rise in 2021, but most of the corn in the reserve grain has been sold, suppressing the sharply rising grain prices. Our country is the only grain importer in the world who is unwilling to compromise with the four major grain merchants and is not restrained by the four major grain merchants.

In the period when the price increase of nearly five times in other countries, my country has been well controlled and has only minor fluctuations.
The people regard food as heaven, and "Heaven" cannot be controlled by capital. Guanzi said: "If there are soldiers in the world, the accumulated grain will be enough to prepare the grain." This is Guanzi's plan to set up a garrison. The food market can only be controlled by a country representing the public interest - this is the greatest enlightenment given to us by the plan to settlement.