As has been announced by CGM48 General Manager, Izuta Rina few weeks ago, that CGM members are allowed to participate in the 2020 9th BNK48 Senbatsu Sousenkyo.
The next year's General Election registration already opened.
And through it's official @cgm48official Instagram account, they've confirmed all of their members had registered with doing it simultaneously by submitting the form together.