National Federation of Ceramic Industry Workers' Unions
The National Federation of Ceramic Industry Workers' Unions (, Zenyoren) was a trade union representing workers in the ceramic industry in Japan. The union was established in 1949, and later affiliated to the Federation of Independent Unions. By 1970, it had 40,777 members. In 1989, it affiliated to the Japanese Trade Union Confederation. In 1995, it merged with several smaller unions to form the All Japan Federation of Ceramics Industry Workers. References

Ceramics and pottery trade unions
Trade unions established in 1949
Trade unions disestablished in 1995
Trade unions in Japan