SANTIAGO, Jan 31 (Reuters) - Copper output in Chile, the world's largest producer of the metal, fell 1.1% year-on-year to 497,971 tonnes in December, the country's statistics agency INE said on Tuesday. Manufacturing production in the Andean nation dropped 4.1% in the month, INE added.
(Reporting by Fabian Andres Cambero; Editing by Steven Grattan)