 Group 5 contained a large number of unions - 26 in 1934 - and while the Amalgamated Engineering Union (AEU) reliably won at least one seat, unions like the Electrical Trades Union (ETU) and United Patternmakers' Association (UPA) often won seats.The Iron and Steel and Minor Metal Trades Group was originally Group 6, but was renumbered in 1968.The Iron and Steel Trades Confederation (ISTC) was the largest union in the group, and consistently held one of its seats.