-- Joinn Laboratories (HKG:6127, SHA:603127) posted net profit attributable to shareholders of 238.4 million yuan for the first quarter, up 480% from 41.1 million yuan a year earlier, according to a Wednesday Hong Kong bourse filing.
Hong Kong-listed shares of the drug research firm were down over 6% in Thursday's late-morning trade.
Earnings per share came in at 0.32 yuan, up from 0.05 yuan a year earlier.
Revenue increased 10% to 316.1 million yuan from 287.3 million yuan in the prior-year period.