LONGi Green Energy Technology (SHA:601012) posted first-half attributable net loss of 3.68 billion yuan, compared with 2.57 billion yuan the previous year.
Loss per share widened to 0.49 yuan from 0.34 yuan, according to a filing with the Shanghai bourse.
Operating revenue declined 18% year over year to 27.0 billion yuan from 32.8 billion yuan.
The solar wafer company's shares were down 4% in recent trade.