Beijing Hongshan Information Technology Research Institute Co., Ltd. signed an equity transfer agreement to acquire 20.4% stake in Shenzhen STEC Communication Technology Co., Ltd. from Shenzhen SDG Information Co., Ltd. (SZSE:000070) on September 23, 2020. Shenzhen SDG Information Co., Ltd reviewed and approved the deal. After the completion of the equity transfer, the company's shareholding ratio in the target company will be reduced from 51.0% to 30.6%, and Shenzhen Stec Communication Technology Co., Ltd will no longer be included in the company's consolidated statements.