United Nova Technology (SHA:688469) swung to a net profit attributable to shareholders of 278.3 million yuan in the first half from an attributable loss of 170.3 million yuan a year earlier, according to a Shanghai bourse filing on Tuesday.
Earnings per share were 0.03 yuan compared with a loss per share of 0.02 yuan a year earlier.
Operating revenue rose 31% to 4.56 billion yuan from 3.50 billion yuan in the previous year.
The Chinese semiconductor company's shares jumped 11% in midday trade.