Does Poly Union have anything to do with Poly development?

Yes

Poly United and Poly Real Estate are the relationship between group companies and subsidiaries.

Poly United Chemical Holding Group Co., Ltd. was established in July 2002, 18. The legal representative is Sheng Jie, and the business scope of the company includes: if it is prohibited by laws, regulations and the State Council, it shall not operate; If the laws, regulations and the State Council decisions require permission (approval), they shall operate with the permission (approval) documents after being approved by the examination and approval authority; If the laws and regulations and the decision of the State Council do not require permission (examination and approval), the market entities shall choose to operate independently.