What is the treatment of China Zhong Jian Design Group Co., Ltd. (directly under the headquarters)?

There is no comparability. If this company wants to leave, it must do a practical investigation. There are many links under China Construction. Moreover, even if it is a direct operation, I have been there, and some small offices have less than ten people. At first glance, structural engineers are in their early thirties, not to mention the talent echelon. There is no echelon. It was hard to cheat Lao Tzu in those days. Moreover, big companies have no responsibility at all for reneging on their promises.