On July 21, the CPO concept continued to rebound. As of 13:43, Gongjin Shares, Tiantong Shares, and Ziguang shares had risen and stopped. Many stocks such as Zhongfu Circuit, Zhongji Xuchuang, Liante Technology, Roboco, and JPT had advanced gains.

On July 21, the CPO concept continued to rebound. As of 13:43, Gongjin Shares, Tiantong Shares, and Ziguang shares had risen and stopped. Many stocks such as Zhongfu Circuit, Zhongji Xuchuang, Liante Technology, Roboco, and JPT had advanced gains.