The A-share fiber optic concept sector showed mixed performance. Hangzhou Electric Co., Ltd. hit a new high during the session, Tongding Interconnect hit the daily limit, and Xineng Taishan, Yunnan Germanium and Han's Laser followed suit. Farsun fell by more than 7.5%, Zhishang Technology fell by more than 5%, and Fujian Crystal Technology, Guangku Technology and Yangtze Optical Fibre and Cable also fell.