Ko Yo Chemical (HKG:0827) expects to post a net loss attributable to equity shareholders of about 709 million yuan for 2025, widening from a loss of about 505 million yuan a year earlier, according to a March 13 Hong Kong bourse filing.

Shares of the chemical producer were down more than 20% in Monday's midday trade.

The wider loss was mainly due to a decline in gross profit margin and an impairment loss on fixed assets of about 245 million yuan.