China Hits US Optical-Fiber Imports With Anti-Dumping Tariffs

China started imposing levies on additional US optical fiber imports after a six-month investigation found that American companies circumvented the country’s anti-dumping measures.

The duties, ranging from 33.3% to 78.2%, took effect Thursday Beijing time on “certain cut-off shifted single-mode optical fiber” from the US, according to a statement from the Chinese Ministry of Commerce.