How about Foshan Branch of Hunan CNNC Geotechnical Engineering Co., Ltd.?

The company is very small, and it should be contracted management right, not state-owned enterprise. The recruitment website is in the name of CNNC Foshan Branch, but you will be asked to sign another small company when you join the company (unless you are a designer). Three-month probation period, 20% discount on salary, no social security, and no social security after becoming a full member. The staff will change a new batch every six months! !