They've also only released 3 singles? That's so sad... I genuinely liked them as well, and I'm usually not really into Cpop.
Nope they were a project group like the other groups that were formed from the same series. They may release their final single in October or November
THE9 barely did any group stuff. They mostly did solo activities which is very common for cpop groups.
THE9 has officially disbanded. They had their disbandment concert from Nov 27 to 28. They released their final EP The Nine on December 5th Here's the EP: if the video does not show watch the video here