知名打假人质疑潮发牛肉虚假宣传，最新回应

Group 1 - The core issue revolves around allegations made by a well-known professional whistleblower, Wang Hai, who claims that the "fresh Wagyu" beef sold at Chao Fa Hotpot is not authentic Wagyu, as the advertised 1400-acre breeding base has been significantly overstated [1][2] - Chao Fa Hotpot has prominently marketed "fresh Wagyu" as a key selling point, emphasizing its 1400-acre breeding base in Ningxia and promoting the integration of high-end Wagyu into traditional Chaoshan beef hotpot [2][4] - The breeding base, Ningxia Benfa Ecological Agriculture Co., is controlled by Guangzhou Chao Fa Investment Co., and it has been revealed that the cattle are actually Angus and hybrid Wagyu, with purebred Wagyu being rare in the domestic market [5][8] Group 2 - The hotpot chain has recently updated its in-store signage to clarify that not all beef comes from the Ningxia breeding base, indicating collaboration with other suppliers, and that "F1 Wagyu" refers to hybrid cattle [7][8] - The term "F1 Wagyu" and "hybrid Wagyu" lacks a formal industry standard, as purebred Wagyu is scarce and cannot meet market demand, leading to confusion among consumers [8] - Wang Hai has reported Chao Fa Hotpot to the Guangzhou market regulatory authority for suspected false advertising, and the situation is currently under investigation [8]