Core tip: On December 17, 2025, the government of Santa Catarina, Brazil, through the Fisheries and Aquaculture Executive Secretariat (SAQ), officially issued Ordinance No. 010/2025, fully prohibiting the import, circulation, sale, and distribution of tilapia from Vietnam within the state. This decision means that regardless of whether it is fresh fish, frozen fish, whole fish, descaled fish, fish fillets, or fish slices, if it originates from Vietnam, regardless of whether it is used for food, feed, or industrial processing, it will not be allowed to enter the Santa Catarina state market.