China Extends Anti-Dumping Duties on Indian Optical Fiber for Five Years

China’s Ministry of Commerce announced on August 13, 2026, that it will extend anti-dumping duties on imported single-mode optical fiber originating in India for five more years, effective August 14, 2026. The decision follows an expiry review initiated in August 2025 after domestic producers warned that removing the tariffs could lead to renewed dumping and economic injury. Approved by the Customs Tariff Commission of the State Council, the extension maintains the product scope established in previous rulings from 2014 and 2020.

Single-mode optical fiber is an indispensable component of modern telecommunications, powering long-haul trunk lines, metropolitan networks, cable television, and fiber-to-the-home broadband. Extending tariffs shields domestic Chinese manufacturers from lower-priced Indian imports, helping maintain price stability and market share for local suppliers as China continues expanding its digital infrastructure.

China’s Ministry of Commerce (MOFCOM) announced on August 13, 2026, that anti-dumping duties on single-mode optical fiber imported from India will be extended for an additional five years, effective August 14, 2026. The decision was formally approved by the Customs Tariff Commission of the State Council following a recommendation submitted by MOFCOM based on its final expiry review determination. The review process was initiated on August 13, 2025, under MOFCOM Announcement No. 42 of 2025, in response to an application submitted by China’s domestic single-mode optical fiber industry. Following a year-long investigation into market conditions and import trends, MOFCOM concluded that terminating the existing trade measures could lead to a continuation or recurrence of dumping of Indian-origin single-mode optical fiber, which would subsequently cause recurring material injury to the domestic manufacturing sector. As reported by state media outlets including Xinhua and the Securities Times, the product scope for the extended tariffs remains unchanged from the scope defined in MOFCOM’s 2014 Announcement No. 56 and 2020 Announcement No. 29. Single-mode optical fibers serve as essential hardware components in modern telecommunications networks. They are primarily deployed in high-speed, long-distance transmission scenarios as well as broadband access networks, including long-haul trunk lines, metropolitan area networks (MANs), cable television infrastructure, and fiber-to-the-home (FTTH) connections. Under the Anti-Dumping Regulations of the People's Republic of China, MOFCOM conducts periodic reviews to assess whether trade protection measures remain necessary. The latest ruling ensures that existing tariff measures will remain in force through August 2031, preventing lower-priced imports from distorting domestic procurement structures as Chinese telecom operators continue upgrading nationwide network infrastructure.