Chinese solar-grade polysilicon producer Daqo New Energy Corp (<a href="https://www.nasdaq.com/market-activity/stocks/dq" target="_blank">NYSE:DQ</a>) booked an attributable net loss of USD 345.2 million (EUR 332.6m) in 2024, against a profit of USD 429.5 million a year ago, as revenues halved and operating costs increased.