China's Top 10 Ports Dangerous Goods Handling Rules | Shanghai/Ningbo/Yantian DG Declaration 2026

Special Segregation Requirements (Class 8):

Lithium Battery Special Requirements (Most Common in Class 9):

❓ Q1: DG declaration rejected, how to handle?

Common reasons: (1) Classification error (wrong UN number); (2) Incomplete documents (missing packaging certificate); (3) Port restrictions (exceeding storage period). Solution: Contact forwarder or port DG department immediately, confirm specific rejection reason, re-complete documents or change plan.

❓ Q2: Different terminals in same port have different DG requirements?

Yes. Different terminals under the same port may have different standards. For Shanghai Port: SICC, Yangshan Deepwater Port etc. have varying requirements. Confirm with the actual handling terminal, do not rely solely on overall port regulations.

❓ Q3: Why Class 8 (acids, alkalis) absolutely cannot be co-loaded?

Acids and alkalis undergo neutralization reaction, generating large amounts of heat. In a sealed container, this can cause rapid temperature rise, container rupture, and leakage. IMDG Code explicitly prohibits "Away From" segregation, international shipping regulations and ports strictly enforce this.

❓ Q4: Port requires "3rd party classification report", what is it?

A formal report issued by government-recognized qualified testing institutions (such as chemical research institutes, commodity inspection) confirming the cargo's DG classification, UN number, hazard class, etc. This is mandatory for strict ports like Shanghai and Hong Kong. Cost approximately USD 150-450.

❓ Q5: Why different lithium battery restrictions for air vs ocean?

Air transport has higher risk (high-altitude low-oxygen, enclosed cabin) -> stricter SoC ≤30% restriction. Ocean transport also has risk but relatively more lenient. Passenger vs cargo aircraft: Passenger aircraft have highest safety requirements, most lithium batteries can only go via cargo aircraft.

❓ Q6: Received "Port Dangerous Goods Operations Attachment Certificate" - what is this?

This is a certificate obtained by port operating enterprises from government authorities, indicating the terminal has qualifications to handle certain specific dangerous goods. Freight forwarders need to confirm whether the terminal's attachment certificate covers your cargo categories. DG outside the attachment scope cannot be handled at that terminal.

✅ DG Port Operations "Golden Rules"

📍 Port Selection Guide

• Full-service ports (recommended): Shanghai, Ningbo-Zhoushan, Dalian -> Most strict but complete, all DG classes handled
• Efficient ports: Guangzhou Nansha, Yantian -> Fast approval, suitable for medium-risk cargo
• International ports: Hong Kong -> English declaration, international standards, but higher cost
• Regional ports: Qingdao, Tianjin, Xiamen -> Lower price, but confirm category restrictions in advance

🚨 Common Pitfalls (Must Avoid)

• ❌ Arranging DG entry without port confirmation -> Rejection and return, huge losses
• ❌ Wrong classification or UN number -> Cargo detention, fines, personnel liability
• ❌ Acid-alkali co-loading or improper segregation -> Port seizure, environmental fines, accident liability
• ❌ Submitting documents without complete package -> 95% rejection probability, another 24h for re-filing
• ❌ Ignoring storage period limits -> Forced destruction or fines for overdue cargo