The decision locks in many of the preliminary duties put in place this summer – and in some cases even raises them.

The rates

Following the pattern laid out in this summer's preliminary ruling, the DOC imposed the lightest anti-dumping (AD) duties on Trina – the world’s largest supplier of PV modules in 2014 – at 27%.

Jinko and Renesola were hit with AD rates of 78%, while several dozen other Chinese suppliers, including last year’s leading supplier Yingli, face an AD rate of 52%.

The