Hong Kong's Centre for Food Safety said on September 2, 2026, that a chicken egg sample imported from Vietnam contained the pesticide fipronil at 0.044 milligram per kilogram, exceeding the legal limit of 0.02 mg per kg. The sample was collected at the import level under the routine Food Surveillance Programme; other pesticide tests were satisfactory. The product's manufacture date was June 2026, the importer was Rich Country Develop Limited, and the eggs came from QL Farms (Tay Ninh) Liability Limited Company.

The centre instructed the importer to stop sales, remove the affected batch from shelves and begin a recall, and urged the trade to stop using or selling the product. It suspended the Vietnamese farm's permission to import chicken eggs and said all chicken eggs imported from Vietnam would be held for testing and released for sale only with satisfactory results. The importer's recall hotline is 2765 8123 during office hours.

A spokesman said adverse health effects would not be caused under usual consumption at the detected level, and advised the public to buy eggs from reliable sources. The centre said it was in contact with Vietnamese authorities, that investigations were ongoing, and that prosecution would follow if evidence sufficed.