Concept of optical fiber fluctuates weakly, Chang Fei Optical Fiber and Topcom Interconnect hit the limit down.

In early trading, the concept of fiber optics fluctuated weakly, with Changfei Optics and Tongding Interconnection hitting the limit down. Changyingtong fell more than 10%, while Yongding Shares, Hentong Optoelectronics, Tefa Information, and Zhongtian Technology were among the top decliners.