In addition, Talcahuano, which initially was a municipality focused on services, began to concentrate industrial workers from 1952, creating a character that remains today; this role was transferred to Hualpén, an area that was recently declared municipality due to its demographic growth derived from the industrial activity of Talcahuano.
A su vez, Talcahuano, una comuna inicialmente de servicios, concentra trabajadores industriales desde 1952 y mantiene este carácter hasta la actualidad, traspasando este rol a Hualpén que recientemente ha pasado a convertirse en comuna, entre otras razones, por su importante incremento demográfico derivado de la industria de Talcahuano.