Yantai Zhenghai Biotechnology (SHE:300653) renewed its medical device registration certificate for its surgical packing sponge with the Shandong Provincial Medical Products Administration, according to a Shenzhen bourse filing on Thursday.
The device is used as a temporary compression after a nasal cavity surgery.
The certificate is valid until Dec. 6, 2031.
The biotechnology company's shares fell 4% at the close.