Later, in October 2017, during the 3rd ITUC World Women’s Conference/Women’s Organizing Assembly, 200 female trade unionists gathered from around the world in Costa Rica, and trade unionist representatives from Latin America, primarily from Argentina and Brazil, asked the unions to take part in the second International Women's Strike call on March 8, 2017.
Posteriormente, en outubro de 2017, na 3ª Conferencia Mundial de Mulleres da CSI/Asemblea de Organización de Mulleres, que reúne a 200 mulleres sindicalistas do mundo, celebrada en Costa Rica, representantes sindicais de América Latina, especialmente de Arxentina e Brasil pediron aos sindicatos participar na convocatoria do segundo Paro Internacional de Mulleres do 8 de marzo de 2017.