Foreign guests at the Malang congress included two Australians, Ted Roach and Mike Healy, and two Dutch trade unionists, Blokzijl (of Eenheids Vakcentrale) and RKN Vijlbrief.
Tamu asing di kongres Malang termasuk dua warga Australia, Ted Roach dan Mike Healy, dan dua anggota serikat buruh Belanda, Blokzijl (dari Eenheids Vakcentrale) dan RKN Vijlbrief.