CCTCC accepts the public preservation of various biological materials. If the client is willing to compile the preserved cultures or related biological materials into the catalogue of CCTCC for sharing with the others, it will be free of charge, and the culture could be accessible twice a year with no charge during the early five years. The certificate could be provided according to the needs of the depositor, and the paper abstract after the article is finalized should be provided for the request for the preservation certificate. Non-patent preserved cultures are biological materials in public that could be shared socially externally after 3 years from the date of preservation application or once the paper is published.