Complete Guide to Professional Import Agency Services for Six-Part Components from Nanjing

Core Customs Clearance Nodes for Nanjing Import Six-Part Components Agency

Last year,I handled a case where a construction machinery supporting enterprise in Nanjing imported six-part components from South Korea.Due to the omission of "alloy steel material" in the declaration elements,the goods were placed under supervision and inspection by Nanjing Customs,delaying the shipment by 3 days.After supplementary documents were submitted later,the goods were finally released smoothly.Such seemingly minor declaration omissions often become hidden obstacles in the customs clearance of imported six-part components.As a team deeply engaged in port agency,we have summarized four core compliance nodes for Nanjing import six-part components agency.

1.Accurate HS Code Classification is the Foundation of Compliance

In 2026,global import supervision standards for mechanical and electrical products were updated.Six-part components,as supporting components of construction machinery hydraulic systems,fall under tariff heading 8431.4900,and must strictly match declaration elements: brand,model,material,purpose,and manufacturer.Some enterprises easily confuse the classification of "six-part components" with general mechanical components,such as misclassifying them as valve products under 8481.8000,leading to subsequent customs valuation and inspection risks.Our team will check the original factory technical drawings in advance to confirm the structural characteristics of six-part components and avoid classification deviations.

2.Practical Countermeasures for Customs Valuation

The customs valuation control rate for imported mechanical and electrical components at Nanjing Port increased by 12% in 2026.Common points of inquiry include low transaction prices and inaccurate freight declarations.Last year,a customer provided an original factory invoice settled in US dollars but failed to provide separate documents for freight and insurance,requiring supplementary submissions three times by customs.For such cases,we will ask customers to prepare a full set of trade documents in advance,including original factory invoices,trade contracts,ocean bills of lading,freight and insurance documents.If importing from RCEP member countries,customers also need to prepare FORM K certificates of origin in advance to enjoy most-favored-nation (MFN) tariff reductions.

3.Pre-Inspection and Wooden Packaging Control

In 2026,Nanjing Port increased the inspection rate for wooden packaging of imported mechanical components.If six-part components use solid wood packaging,they must carry IPPC fumigation marks.Last year,a batch of six-part components imported from Germany was required to be returned and rectified by the wooden packaging not having marks,resulting in additional terminal storage fees of over 20,000 yuan.Our operation process will pre-audit packaging documents 7 days in advance.If customers do not prepare compliant packaging,we can coordinate to provide fumigation-free plywood packaging as an alternative.

4.Pre-Handling of Import Licenses

Some six-part components are mechanical and electrical products subject to automatic import license management.In 2026,Nanjing Customs required such goods to complete license application 15 days before declaration.We will assist customers in preparing materials such as business licenses and mechanical and electrical product import application forms,and submit them online through the "single window" to avoid demurrage caused by incomplete documents.

Common Risk Warnings for Nanjing Import Six-Part Components Agency

• Bill of Lading (B/L) Exchange Fee Trap: Some small freight forwarders overstate B/L exchange fees,with quotations ranging from 200 yuan to 500 yuan,while the actual port basic fee is only about 200 yuan.We will publicize the official charging standards of Nanjing Port in advance to eliminate hidden charges.
• Demurrage Risk: The terminal storage fee at Nanjing Port is calculated daily,and the fee for exceeding 3 days can reach 800 yuan per day.We will complete document pre-audit 2 days before the goods arrive at the port to ensure declaration upon arrival and avoid unnecessary expenses.
• Anti-Dumping Duty Risk: In 2026,the European Union levied anti-dumping duties on some Chinese-made construction machinery components.If six-part components are originally from non-EU member countries such as South Korea and Japan,the certificate of origin must be authentic and valid; otherwise,additional anti-dumping duties may be imposed.

Practical Case: Customs Clearance Rectification for Six-Part Components of an Auto Parts Enterprise in Nanjing

In October 2025,an auto parts enterprise in Nanjing entrusted an ordinary freight forwarder to import six-part components from South Korea.Due to the failure to provide IPPC marks on the wooden packaging,the goods were detained by the commodity inspection department after arriving at the port.After we took over,we first coordinated with the commodity inspection department of Nanjing Port to apply for a green channel,and contacted the original Korean factory to reissue fumigation certificates.The rectification inspection was completed in 3 days,and the goods were released smoothly.Only 1,200 yuan of expedited inspection service fee was incurred,saving nearly 20,000 yuan in demurrage compared to the customer handling it themselves.

Exclusive Service Advantages of Zhongshitong Nanjing Import Six-Part Components Agency

As a port agency team headquartered in Shanghai,we rely on the linkage resources of national ports to break geographical restrictions,providing import enterprises in Nanjing with full-process services from overseas pickup,international logistics,customs declaration and inspection,to foreign exchange settlement.For mechanical and electrical components such as imported six-part components,we will combine the latest customs supervision rules in 2026 to prepare risk control plans in advance and ensure efficient customs clearance of goods.