In the order of how they are seated in the picture above,
Jisung (02) Jeno (00) Mark (99) Renjun (00) Jaemin (00) Chenle (01) Haechan (00)
Their average age is 15.8 y.o and they are supposed to represent the youthfulness of NCT. They will be promoting as a 7 members group. Their song will be released on the 24th and they will appear on MCountdown on the 25th for their debut stage.
original post: here