The public * * * resource trading center is an institution responsible for public * * resource trading and providing consulting and services, and it is a service platform for unified trading of public * * * resources. The contents include bidding for construction projects, land and mining rights transactions, state-owned property rights transactions of enterprises, government procurement, procurement of drugs and medical supplies in public hospitals, auction of confiscated goods by judicial organs, auction of state-owned literary and artistic products, etc. All public resources transactions are included in the centralized trading center.