After the end of World War II reconstruction of the Netherlands began, and as part of this process investments were made in the steelworks. A separate company, Breedband NV, was established on 19 June 1950, receiving funding from both the state and the United States, under the Marshall Plan. The project introduced hot and cold rolling mills for thin plate, of 60 and 75 thousand tonnes per year capacity respectively, and a galvanising line. All three installations were operating by the end of 1953. During the same period architect Willem Marinus Dudok was commissioned to design a head office for the company in Velsen, which was completed 1953. The "Breedband" project moved Hoogoven's emphasis into flat rather than long products, which continued in later decades.