In November 1987 he was elected General Secretary of the Metal Federation of the CCOO replacing Juan Ignacio Marín, a position he held until November 1995, when the Metal and Mining Federations of the union merged.
En novembro de 1987 é elixido Secretario Xeral da Federación do Metal de CCOO en substitución de Juan Ignacio Marín, cargo que ocupou até novembro de 1995, cando se fusionan as federacións do Metal e de Minería do sindicato.