[4] During World War I the Government of the United Kingdom asked Colville's to intervene in some of the nearby struggling steel plants, and to that effect they took over the running of the Clydebridge Steel Company works in Cambuslang in 1915, and the Glengarnock works in 1916.
[5] 1951 saw the company taken into public ownership, under the direction of the Labour government of Clement Attlee, as part of the Iron and Steel Corporation of Great Britain.
In 1957 construction of the integrated Ravenscraig steelworks at Motherwell was completed at a cost of £20 million, and as a result of this, a number of older Colville furnaces were demolished.
[6] Tata Steel closed the Dalzell and Clydebridge works in 2015, but both reopened in 2016 following the sale of the sites to Liberty House Group.
[7][8][9] However, the viability of the sites was again placed in doubt when the Liberty holding company was issued with a winding-up petition in early 2022 over substantial debts, a situation compounded by the collapse in productivity caused by the COVID-19 pandemic in Scotland.