The fully biodegradable disposable circular meal box is an environmentally friendly dining utensil product developed by Zaozhuang Tianyao Starch Technology Co., Ltd. for scenarios such as food delivery, fast food chains, and group meal distribution. The product is mainly made of bio based biodegradable materials and processed through scientific molding techniques. Under industrial composting conditions, it can be completely decomposed into carbon dioxide and water by microorganisms, with no plastic residue. It fully complies with the environmental protection requirements of the national "plastic ban" and the green transformation of the catering industry. The product has the characteristics of heat resistance, leakage prevention, and high rigidity, and is suitable for packaging and packing various hot and cold foods, soups, salads, and other foods. The product is circular in design, smooth in shape, stable in structure, and sealed with a cover to prevent leakage. It is an ideal green alternative to traditional polypropylene (PP) lunch boxes and foam plastic lunch boxes