What does Huaian 333 industry mean?

Green food industry ranks first in Huaian 333 industrial system. In 2020, the top ten enterprises in the food industry in the city are Huaiyin Cigarette Factory, Liquor Industry, Shuanghui Food, Su Meat Products, Shiwei, Baimei Sugar Industry, Want Want Food, Huaiyin and Wanxiang Technology. In addition, enterprises such as Huashi Agriculture, Tianshen Aquatic Products, Shi Wen Animal Husbandry and Xintiandi are also developing well.