28, 1947, ESKI and EMKA organized a labour congress in Teheran. Present were 84 ESKI delegates and 46 EMKA delegates. The cooperation between ESKI and EMKA did not last, however. And in December 1947, shortly after the break between the two centers, ESKI thugs carried out an attack on an EMKA club building. The attack on EMKA further discredited ESKI. Latter period As of December 1947, ESKI claimed a membership of 75,000. At the first congress of ESKI, held in November 1949, 21 out of 36 delegates were engineers. Only two delegates were workers. At the labour congress held in February 1951, a new trade union centre called the Iranian Trade Union Congress was formed. Both ESKI and EMKA merged into the ITUC. ITUC inherited ESKI's ICFTU membership. References Trade unions in Iran International Confederation of Free Trade Unions Iran 1946 establishments in Iran Trade unions established in 1946 Trade unions disestablished in 1951