Certain A Shares of Suzhou Institute of Building Science Group Co., Ltd. are subject to a Lock-Up Agreement Ending on 5-SEP-2020. These A Shares will be under lockup for 1104 days starting from 28-AUG-2017 to 5-SEP-2020. Details: The Company's holding shareholders and actual controllers Wu, Wang Huiming, Wu Qichao, and Huang Chunsheng, director and shareholder Zhao Qiang, shareholders Suzhou Riya Wuzhong Guofa Venture Capital Enterprise and Suzhou Huyang Linfengyi Investment Center, supervisors Chen Jian, Li Dongping, Gu Xiaoping, director, secretary, and shareholder Qian Qingfang, and shareholders and core technical staff Chen Xiaolong, Jiang Wenlin, and Wu Gefu committed to not transfer or entrust to a third party the Company’s shares they hold directly or indirectly before the issuance, or allow the company to repurchase those shares within 36 months from the listing date, September 5, 2017. The Company's other shareholders committed to not transfer or entrust to a third party the Company’s shares they hold directly or indirectly before the issuance, or allow the company to repurchase those shares within 12 months from the listing date.