Both options are available. According to the shipper’s actual situation, Shanghai Yiqi International Freight Co., Ltd. can provide integrated customs declaration together with space booking (we complete export customs declaration while booking space, offering a single point of contact for logistics and customs clearance). We can also cooperate with the customer’s designated customs broker for declaration, by providing shipping documents such as manifests, draft bills of lading and packing lists, and coordinating release and loading before the closing time. Under both arrangements, the shipper/consignee of the import and export goods bears primary customs clearance liability. In other words, the shipper is responsible for the truthfulness, accuracy and completeness of the declared information. If entrusting a customs declarant, both parties shall sign an electronic customs declaration power of attorney via the China International Trade Single Window or China E-Port to define entrusted matters and authorization scope. Once the commodity name, specifications, quantity and other details are confirmed and bill of lading or manifest data is available, export goods can be declared to customs up to seven days prior to arrival at the customs supervision zone. Customers need to submit documents in advance, including commercial invoice, packing list, contract, customs declaration power of attorney and any required permits. The preferred method is recommended based on whether the shipper can handle self-declaration, cargo regulatory requirements, tax rebate arrangements and local port practices.