China A-share fiber-optic sector surged; Wanlong Optoelectronics and Changyingtong hit 20% limit-up, Tongding Interconnect earlier hit the daily limit, and Taichen Photonics, Tengjing Technology, Dekoli, Sanwang Communications and Youlide rose over 1

2026-08-20

China A-share fiber-optic sector surged; Wanlong Optoelectronics and Changyingtong hit 20% limit-up, Tongding Interconnect earlier hit the daily limit, and Taichen Photonics, Tengjing Technology, Dekoli, Sanwang Communications and Youlide rose over 10%.