Changchun High-Tech Industry's (SHE:000661) unit, Shanghai Saizen Medical Technology, obtained a medical device registration certificate from the Shanghai Food and Drug Administration, according to a Shenzhen Stock Exchange disclosure on Thursday.

The certificate is for the biopharmaceutical company's luteinizing hormone detection kit (fluorescence immunochromatography), a kit used to detect luteinizing hormone in human urine samples.

The certificate is valid until Dec. 12, 2029, the disclosure said.

The company's shares slipped over 1% in recent trade.