Guide to Streamlining Customs Clearance at Chinas Yangshan Port

Published: 08/21/2025
Yangshan Port Consolidated Customs Clearance Secondary Release
This article provides an in-depth analysis of the consolidated customs clearance process at Yangshan Port, with a focus on the "Secondary Release" mechanism. It offers practical operational guidelines to help navigate special circumstances such as customs system downtime and missing EDI information. Furthermore, it provides professional advice on common issues like chemical classification and HS code inquiries, aiming to assist foreign trade enterprises in achieving efficient customs clearance. This guide helps streamline operations and avoid delays, ensuring smooth import/export processes through Yangshan Port.
Guide to Streamlining Customs Clearance at Chinas Yangshan Port

For international traders, the complex customs clearance process at Yangshan Port—particularly its unique "two-release" mechanism—has long been a source of confusion. This guide breaks down the port's operational procedures to help businesses streamline their logistics operations.

Yangshan Port: More Than a Port, a Logistics Powerhouse

Established under Shanghai Customs Announcement No. 25 (2005), Yangshan Free Trade Port Zone operates on a "declare first, enter later" model for export goods. Unlike traditional bonded zones, this deep-water port combines port functionality with special customs supervision, implementing a dual-release system comparable to Hong Kong's customs protocols.

Understanding the "Two-Release" Mechanism

The clearance process involves two critical stages:

  • First Release: Customs approval for goods to enter the port area after declaration
  • Second Release: Automatic system clearance when electronic container data matches declaration details (assuming no inspection required)

A third step—terminal release—occurs when vessels approach berthing, completing the final administrative procedure.

Practical Guide to Yangshan Clearance

To ensure smooth operations:

  • Pre-declare shipments: Complete customs formalities immediately after cargo preparation to avoid operational delays
  • Prepare for inspections: Designate containers for inspection holding areas and maintain communication with customs brokers
  • Document finalization: Secure port departure certificates after clearance for carrier pickup authorization

Troubleshooting Common Issues

When electronic data systems fail to update after maintenance downtime, manual updates by Yangshan Customs officers have proven effective, though direct contact channels remain limited.

Special Considerations

Chemical classification requires particular attention—customs typically evaluates products by either primary use or dominant chemical composition. For complex mixtures, classification under HS Code 3824909990 (other unspecified products) may apply pending final customs determination.

Dangerous goods shipments require pre-approved port entry plans to ensure compliance with safety protocols.

Under China's customs integration system, local declarations now permit direct shipment to Yangshan or Waigaoqiao ports, with automated gate recognition systems handling subsequent inspection processes.

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