Frozen corn, frozen dumplings, frozen corn kernel processing, packaging, marketing; Corn planting; Soybean planting; Grain purchase; Rice, mountain products, edible vegetable oil, five grains porridge, porridge paste, corn flour sales; Beef cattle raising, meat products processing and marketing; Vegetables are dehydrated and pickled; Sales of edible fungi and Chinese herbal medicines (except national limited varieties); Grain and oil, quick-frozen food goods import and export.