CEU - While I am concerned with the training facility, the math in your post needed to be re-calibrated though.
Remember that CEU is for supplementary education training, not regular schools. The students do not stay in the school the whole day, they just stay long enough for the training classes.
Capacity for 1200 students means they have 1200 seats to host students at any given time.
Each seat can be used by different students at any given time.
In US, you can pay as much as $2000 for a 3 or 5 day training class. So it is not unusual for a Chinese training facility to generate $10K/year per seat. Those seats can be utilized at 7x12 basis (seven days a week, 12 hours each day.)
For example, if they hold 5 training sessions (3 by day, 2 at evenings) each day, that's up to 5x1200 students.
If you schedule the training sessions per MWF and TThu, then Sat/Sun, and you multiply the student population by another 5 or even 10.
Provided that they indeed have those students.