 XHMK began as XEMK-AM 1490, with a concession awarded on June 19, 1965.It was owned by Juana María Infante and later by Radio Progreso de Huixtla, S.A. By the early 2000s, XEMK had moved to 930 kHz.As part of wholesale format and operator changes at Radiorama Chiapas in August 2019, XHMK became "La Poderosa", dropping the La Bestia Grupera brand.