Are the employees of Poly Property established by state-owned enterprises?

Poly Property Company is not a state-owned enterprise, but a central enterprise. We all know that Poly Group is a very famous king of central enterprises. Among all real estate enterprises, China Poly Group should be in the position of 1, and Poly Real Estate belongs to a real estate subsidiary of Poly Group, so I think Poly Real Estate should also be a central enterprise unit. Poly Property's working salary is very good, but the requirements for property personnel are also very high. Moreover, when applying for the security of Poly Property, you must ask whether it is a temporary worker or an establishment. Not all people who work in Poly Property have the establishment, and many people are temporary workers.