Colonel Romero finally exiled in Mexico. He, his wife and daughter arrived to the port of Veracruz on 22 May 1942, after nearly a month's cruise aboard the second of three voyages made from Casablanca by the Portuguese ship "Nyassa" carrying to Mexico large contingents of refugees. In this country Romero re-founded the technical magazine "Defensa Nacional" ("National Defense") with the participation of Spanish military refugees in cooperation with the Mexican Armed Forces. With his children Carmen and Carlos Romero Ortega created a publishing company named 'Sociedad Mexicana de Publicaciones' (Carlos Jr., fighting at a young age for the defense of Madrid was separated by the war from his parents. He obtained political asylum in the Dominican Republic and later in Mexico). Colonel Romero established and directed "Maderas Industrializadas y Reconstituidas", a company that pioneered industrialized wood.