Cstar has always adhered to the philosophy that technology is the primary productive force. Over the past decade, it has been committed to developing information systems, resulting in a comprehensive customs management system. The system integrates with the Single Window and connects multiple modules, establishing a document preparation center with unified management that significantly reduces costs. Through extensive logical validation, the declaration error rate has been reduced to 0.1%, lowering the quality requirements for business personnel. Additionally, by leveraging AI technology, the automatic input and verification of a large number of documents is achieved, fully utilizing the advantages of advanced information technology to enhance document preparation efficiency.