Job Responsibilities:1. Carry out the company's trade business, implement trade regulations, and develop markets;2. Responsible for contacting customers, preparing quotations, participating in business negotiations, and signing contracts;3. Responsible for production tracking, delivery, and on-site supervision of installation;4. Responsible for document review, customs declaration, settlement, after-sales service, etc.;5. Customer expansion and maintenance;6. Sorting and filing of business-related materials;7. Report on related business work.