China A-share fiber-optic sector extended gains as Zhongtian Technology and Hangdian Co. hit daily limit-up; earlier limit-ups seen in Yangtze Optical Fibre & Cable, Hengtong Optic‑Electric, Yongding Co. and Huiyuan Communications. Changyingtong advanced over 10%.

2026-06-02

China A-share fiber-optic sector extended gains as Zhongtian Technology and Hangdian Co. hit daily limit-up; earlier limit-ups seen in Yangtze Optical Fibre & Cable, Hengtong Optic‑Electric, Yongding Co. and Huiyuan Communications. Changyingtong advanced over 10%.