The public asset management transaction management center is an institution responsible for public resource transactions and providing consulting and services, and it is a service platform for public resources to enter the market in a unified manner. The main contents include project bidding, land and mining rights transactions, state-owned property rights transactions of enterprises, government procurement, drugs and medical supplies procurement of public hospitals, auction of confiscated materials by judicial organs, auction of state-owned literary and artistic products, etc. All public resources transactions are included in the centralized transaction.