In 1908, it organised a conference in Berlin which established the international union, with headquarters in the city.
[1] The secretariat ceased operations during World War I, but was re-established in 1920 at a conference in Amsterdam.
Its headquarters were in Amsterdam for four years, before returning to Berlin, then moved to The Hague around the end of the decade.
[1][2] In its early years, the IUHR was one of the smaller international trade secretariats.
In 1961, it merged into the International Union of Food, Drink and Tobacco Workers' Associations, which renamed itself as the "International Union of Food, Agricultural, Hotel, Restaurant, Tobacco and Allied Workers' Associations".