Job description: 1. Responsible for billing, shipment audit and packaging of exhibition hall customers. 2. Be responsible for daily settlement work, such as material transfer, advance payment, material exchange, etc. Cooperate with finance department to manage customer accounts. 3. Be responsible for statistics and settlement of accounts and materials of the day, making relevant documents and checking with business and finance. 4. Be responsible for checking the information accuracy of the goods to be printed. 5. Be responsible for the transmission, communication and coordination of documents, statements and data information with relevant departments.