If the preliminary determination stands, major players Suntech and Trina Solar would receive dumping rates of 31.22% and 31.14%, respectively, with 59 other exporters getting a similar rate of 31.18%, according to the DOC.

All other Chinese producers will face a dumping margin of 249.96%, the DOC says, effectively pricing them out of the US market.

Combined with countervailing duties of 2.9-4.73%