Zhitong Finance App News, *ST Dongyang (002086.SZ) announced that valproic acid, carbamazepine, and phenytoin detection reagents (liquid chromatography-tandem mass spectrometry) independently developed by the company's subsidiary Mass Spectrometry have recently obtained registration approval from the Shandong Drug Administration and obtained a medical device registration certificate (in vitro diagnostic reagent).

Mass Spectrometry Biotechnology Co., Ltd. had little impact on the company's performance this year. The commissioning of valproic acid, carbamazepine, and phenytoin detection reagents (liquid chromatography-tandem mass spectrometry) approved for marketing is uncertain and the subsequent impact on the company's performance. Investors are invited to pay attention to investment risks.