Optical communication concept plate has a strong start, Changfei Optic Fiber and Tongding Interconnect both hit the daily trading limit.

The concept of optical communication started to strengthen, with Changfei Optical Fiber and Tongding Interconnection hitting the limit up, Taichen Guang rose more than 10%, Changxin Bochuang, Hengtong Optoelectronics, Changyingtong, and Tongguang Cable followed the uptrend.