E-commerce platform operators are banned from clearing overstocked inventory with "\\;blind box"\\; sales amid the COVID-19 resurgence, according to a notification released by Shanghai's market regulators on Wednesday.The warning to regulate the business operation of e-commerce sites also states that operators should take measures to enhance management of delivery workers and stop "\\;malicious price hikes"\\; for their services.Oversight of delivery persons' registration should be beefed up, and e-commerce businesses should take measures to ensure the quality of the goods, particularly fresh food, they deliver.