According to their Vyrl post, EXO’s sub-unit will be called EXO-CBX. Their first mini-album is titled “Hey Mama!” and will be released on October 31 at midnight KST.
The website also features the sub-unit’s logo, which incorporates the letters CBX into the classic cube shape of EXO’s official logo.
At the bottom of the website are links to a notice board, a schedule, and a fanboard. The notice board and schedule are empty at the time of writing but the fanboard is already full of encouraging messages from EXO fans looking forward to the new unit.