Driven by AI compute buildouts, Chinese fiber-optic cable makers say order books are full. Production has been at full capacity since Q4 2025 and scheduled orders now run into 2027. Jiangsu Hengtong Fiber Technology Co. reported Q1 output up 35% YoY and overseas shipments up 55%; exports are concentrated in North America and Southeast Asia. The main bottleneck for further capacity expansion is optical preforms; leading domestic firms are accelerating in‑house R&D and preform capacity expansion.

2026-06-03

Driven by AI compute buildouts, Chinese fiber-optic cable makers say order books are full. Production has been at full capacity since Q4 2025 and scheduled orders now run into 2027. Jiangsu Hengtong Fiber Technology Co. reported Q1 output up 35% YoY and overseas shipments up 55%; exports are concentrated in North America and Southeast Asia. The main bottleneck for further capacity expansion is optical preforms; leading domestic firms are accelerating in‑house R&D and preform capacity expansion.