The EU is slapping large tariffs on Chinese optical fibre cables after finding they’re being sold at artificially low prices.

On Thursday, the EU announced that it will be introducing the anti-dumping duties following a European Commission investigation. The duties are intended to remedy damage to European producers such as Prysmian, Corning, and Acome.

Major Chinese optical fibre cable manufacturers include Yangtze Optical FC, Hengtong Group, Fiberhome, and...