The new party sent its spokeswoman, Phannikar Wanit and dpeuty deputy leader Dr Chamnarn Chanruang to open its branch in Khon Kaen's Muang district and to recruit party members at 9am on Saturday.
Prim Boonpattaraksa, the mother of Jatupat, was among local residents who turned up to welcome the Future Forward leaders and to apply for membership.
Jatupat, known widely as “Pai Dao Din”, was sentenced to two years and six months in prison for a lese majeste charge after he shared a BBC report profiling the monarch.
Prim said she wanted to take part in the establishment of the party to push for changes on issues where people are treated unfairly.