Shanghai Conant Optical Co (HKG:2276) reported a profit attributable to owners of 272.9 million yuan for the six months ended June 30, up nearly 31% from 208.7 million yuan a year earlier, according to an Aug. 8 Hong Kong bourse filing.

Shares of the spectacle lenses manufacturer were down over 3% in Monday late-afternoon trade.

Earnings per share came in at 0.59 yuan compared with 0.50 yuan.

Revenue climbed over 11% to 1.08 billion yuan from 976.4 million yuan in the prior year.

The board declared an interim dividend of 0.15 yuan per share.