Raytron Technology (SHA:688002) posted first-half attributable net profit of 1.26 billion yuan, up 259% from 351.0 million yuan the previous year.
Earnings per share climbed to 2.56 yuan from 0.76 yuan, according to a Tuesday filing with the Shanghai bourse.
Operating revenue rose 73% year over year to 4.40 billion yuan from 2.54 billion yuan.
The glass fiber manufacturer declared a semi-annual cash dividend of 5.00 per 10 shares, according to a separate filing.
Shares of Raytron Technology were down 4% in recent trade.