Advanced Fiber Resources Zhuhai (SHE:300620) posted first-half attributable net profit of 148.4 million yuan, up 186% from 51.9 million yuan the previous year.
Earnings per share climbed to 0.5859 yuan from 0.2059 yuan, according to a Tuesday filing with the Shenzhen bourse.
Operating revenue rose 73% year over year to 1.03 billion yuan from 596.6 million yuan.
Shares of the core optical component manufacturer were down 2% in recent trade.