All Japan Water Supply Workers' Union
Trade union in Japan
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The All-Japan Water Supply Workers' Union (Japanese: 全日本水道労働組合, Zensuido) is a trade union representing workers in the water industry in Japan.
The union was founded in 1951 by municipal workers involved in water supply and sewerage.[1] The union affiliated to the General Council of Trade Unions of Japan, and by 1967, it had 31,699 members.[2] It has been affiliated to the Japanese Trade Union Confederation since the late 1980s. By 2020, its membership had fallen to 16,281.[3]