[general Administration of Market Supervision: blind box operators shall not change the extraction results through background manipulation and arbitrarily adjust the extraction probability to induce consumption in a disguised form] China's General Administration of Market Supervision issued guidelines on the code of conduct of blind box business. Blind box operators shall not change the extraction results or arbitrarily adjust the extraction probability to induce consumption in disguise through background manipulation. It is not allowed to refuse or deliberately delay the distribution of blind boxes by means of discount, repurchase, exchange, etc. You don't have to set an empty box. If the blind box is sold through physical stores, self-help sales equipment and other on-site or non-immediate public means on the Internet, the blind box operator shall retain the setting of the extraction probability and establish a corresponding sampling mechanism for ex-factory probability. Where sales are made public immediately through the Internet, blind box operators shall keep complete records of the extraction probability setting and result extraction, establish a tracking record system, ensure that the goods extracted by consumers are distributed in place, and consciously accept social supervision. The retention time of relevant records is generally not less than 3 years.