Wafer sales jumped from $12m in the first quarter to $12.7m.

The NYSE-listed polysilicon and wafer producer partly attributed the rise in shipments to stronger sales and higher average selling prices (ASPs) for polysilicon.

The ASP for polysilicon stood at $22.04 per kilogram in the second quarter, Wanzhou-based Daqo said in an online statement.

"We believe continuously growing end-market demand will strongly support polysilicon ASPs in the fourth quarter of 2014 and beyond," said chief executive Dr.