China Extends Anti-Dumping Duties on Indian Single-Mode Fiber from Aug 14, 2026, Rates at 7.4%-30.6%
China will extend anti-dumping duties on single-mode optical fiber from India for five years starting August 14, 2026, with rates unchanged at 7.4%-30.6%. The decision, announced by the Ministry of Commerce on August 13, follows a sunset review initiated in August 2025. Sterlite Technologies faces a 7.4% rate, while Aksh Optifibre and Finolex Cables each face 30.6%. China first imposed the duties in August 2014 and extended them in 2020.
The Ministry of Commerce announced on August 13 that it would continue to impose anti-dumping duties on imported single-mode optical fiber originating from India from August 14, 2026, for a period of five years.
The anti-dumping duty rates remain unchanged, ranging from 7.4% to 30.6% for different Indian exporters. Among them, Sterlite Technologies is subject to a rate of 7.4%, while Aksh Optifibre and Finolex Cables each face a rate of 30.6%. Single-mode optical fiber is mainly used for high-speed, long-distance and access network transmission, and is widely employed in long-haul trunk lines, metropolitan area networks, cable television and fiber-to-the-access networks.
China first imposed anti-dumping duties on Indian single-mode fiber in August 2014, and extended the measures for five years in 2020. In August 2025, China launched a sunset review investigation into the relevant anti-dumping measures, and this renewal decision is based on the findings of that investigation.
Why this event matters
The event has a measured impact on 1 industry. The strongest current signal is positive for Network Equipment, with intensity 30/100 and 80% confidence over a medium term horizon.
Impact figures are analytical estimates that combine direction, intensity, confidence and event importance. They are not investment advice.