Xu Qiao, Zhang Kui, Gui Zhengfu and Zhang Lamei agreed to acquire additional 14% stake in Wuhan Haisheng Kexun Technology Co., Ltd. from Beijing Zhongkehaixun Digital S&T Co., Ltd. for CNY 0.99 million

Beijing Zhongkehaixun Digital S&T Co., Ltd. is a China-based company mainly engaged in the sonar product business. The Company focuses on the research, development, manufacture and sales of related products in the sonar field, mainly providing customers with signal processing platforms, sonar systems, underwater acoustic big data and simulation systems, and unmanned detection systems. The Company mainly operates its business in the domestic market.