It was formed in 1991 when a number of trade unions disaffiliated from the General Confederation of Labour.

Though the CTA is a left-wing-tendency organization, it is led by unionists with a kirchnerist[3][4] viewpoint.

[5] The Workers' CTA is aligned with Kirchnerism and its leader is the teacher Hugo Yasky.

The most numerous is that of the Workers, who always supported Cristina Kirchner and in which her most powerful base union is the SUTEBA, led by teacher Roberto Baradel.

This article related to a South American trade union is a stub.