The World Federation for the Metallurgic Industry (French: Fédération mondiale de la métallurgie, FMM) was a global union federation representing workers in the metalworking industry.
It held its first congress in November 1921 in Turin, when it agreed its statutes.
It established offices in Utrecht, and affiliated to the International Federation of Christian Trade Unions.
[1][2] By 1934, the federation had affiliates in Belgium, Czechoslovakia, France, Hungary, the Netherlands, Poland, Switzerland, and Yugoslavia, with a total of 96,656 members.
[3] The federation voted to dissolve in 1983, believing that, with members in eight countries, it could not achieve effective action.