Japan Federation of Service &amp; Tourism Industries Workers' UnionsJapan Federation of Service &amp; Tourism Industries Workers' Unions Japan Federation of Service & Tourism Industries Workers' Unions The Japan Federation of Service & Tourism Industries Workers' Unions (STU; , Service Rengo) is a trade union representing workers in the service and tourism industries. The union was founded in July 2001, when the Japan Federation of Leisure-Service Industries Workers' Unions merged with the Hotel and Restaurant Council of the National Federation of General Workers' Unions. It affiliated to the Japanese Trade Union Confederation. The union had 44,029 members in 2009, and this had grown to 47,454 by 2020. Japan Federation of Service & Tourism Industries Workers' Unions The Japan Federation of Service