Shenzhen Fangyi Urban Service Development Co., Ltd., Chengdu Jieding Medical Testing Technology Co., Ltd, Beijing Hongfeng Property Services Co., Ltd. and Beijing Tianjian Zhiqin Property Management Co., Ltd, Chen Mengfan and Kang Jianhua agreed to acquire 70% stake in Shenzhen Jiuyi Green Operation Management Co., Ltd. from Shenzhen Institute of Building Research Co., Ltd. (SZSE:300675) for CNY 7.3 million on December 30, 2023. Acquisition was part of public auction through the Shenzhen United Equity Exchange. Transaction was already approved by Shenzhen Institute of Building Research Co., Ltd. 's Board of director's and shareholders.

Shenzhen Fangyi Urban Service Development Co., Ltd., Chengdu Jieding Medical Testing Technology Co., Ltd, Beijing Hongfeng Property Services Co., Ltd. and Beijing Tianjian Zhiqin Property Management Co., Ltd, Chen Mengfan and Kang Jianhua completed the acquisition of 70% stake in Shenzhen Jiuyi Green Operation Management Co., Ltd. from Shenzhen Institute of Building Research Co., Ltd. (SZSE:300675) on December 30, 2023.