Lianyungang
Jiangsu's Yellow Sea port, with a simplified document list for 'new three' cargo since 2024 and its own guide for energy-storage units on break-bulk ships.
North America · sea freight from Lianyungang
Lianyungang to Duluth
Yellow Sea · Korea Strait · Tsugaru Strait · Panama Canal · Windward Passage · Cabot Strait · Gulf of St. Lawrence · St. Lawrence Seaway
From Lianyungang to Duluth, cargo moves through Lianyungang port, crosses a long voyage ending in the North Atlantic or the Gulf of St Lawrence, and is discharged at the port of Duluth.
The US side adds a 25% Section 301 duty line, forced-labour scrutiny of lithium supply chains and an ISF deadline that falls before loading. Below are 6 route-specific points to plan for, what we do about each, and the documents to have ready before booking.
What we need to start
Route profile
Jiangsu's Yellow Sea port, with a simplified document list for 'new three' cargo since 2024 and its own guide for energy-storage units on break-bulk ships.
Section 301 duty on Chinese lithium-ion batteries at 25% since January 2026, UFLPA scrutiny of lithium supply chains, ISF 24 hours before loading, and a US-only marking rule for SP188 packages.


Where this route gets difficult
Loading port first, then the sea leg, then Duluth and the United States market.
For energy storage shipped on break-bulk vessels, Lianyungang MSA's June 2025 guide classes ESS cabinets as UN3480 and ESS containers as UN3536, recommends 20–50% remaining charge, and requires converters and monitoring switched off, series and parallel circuits disconnected, packages spread evenly with a low centre of gravity, and a safety meeting before the ship arrives.
What Anxin does: For ESS units we confirm the UN number the unit ships under, get the state of charge and isolation steps in writing from the manufacturer, and join the pre-arrival safety meeting with the stowage details.
Between April and July sea fog is a major marine hazard in the Yellow and Bohai Seas, the China Meteorological Administration says. Lianyungang, like Qingdao, can see vessels held at anchor by fog, and moving a box to another vessel means amending its DG filings.
What Anxin does: In fog season we keep slack between stuffing and the DG cut-off and have the filing data ready to amend.
Atlantic hurricanes run from 1 June to 30 November, with the peak around 10 September and most storms between mid-August and mid-October, on the approach to Duluth.
What Anxin does: For August–October arrivals we plan slack and pass the carrier's revised arrival to your consignee.
USTR's 2024 review moved lithium-ion batteries of HTSUS 8507.60.0020 (the 'other', non-passenger-EV line) from a 7.5% to a 25% additional duty for entries from 1 January 2026; EV traction batteries under 8507.60.0010 reached 25% in 2024. Other China-specific duties can stack on top and change with little notice, so the landed cost depends on the exact classification and entry date.
What Anxin does: We do not give duty rulings. We make sure the invoice describes chemistry, configuration and application precisely enough for the importer's customs broker to classify it, and we flag the entry date when a vessel's arrival could straddle a duty change.
Under 19 CFR 4.7 the carrier's cargo declaration must be in CBP's Automated Manifest System 24 hours before loading abroad. Without it, or with inaccurate data, the permit to unlade the container at Duluth can be delayed or refused.
What Anxin does: We give the carrier or NVOCC the final cargo description, HS code, UN number and package count before the documentation cut-off in Lianyungang, so the AMS filing and the DG manifest say the same thing.
US customs rules give an unentered container 15 calendar days at the place of unlading. After that the carrier hands it to a bonded general order warehouse, with transport and storage at the consignee's risk and expense, and for DG cargo that needs specialized storage the port director decides where it is kept (19 CFR 4.37).
What Anxin does: We check with the importer's broker that the entry can be filed before arrival at Duluth, and chase any missing invoice or HTS detail while the ship is still at sea.

Documents & compliance
These documents come from the shipper, the manufacturer and the importer. Anxin checks them against each other; it does not issue test reports, safety data sheets or import certificates.

A document that is present but inconsistent holds a booking as surely as a missing one: the UN number, model name or carton count reads differently in the Lianyungang export filings, the carrier booking and the United States import papers. We compare all three before confirming space.
Carriers we book with
Our booking panel; availability on this lane and acceptance of the declared UN numbers are confirmed for each booking. It does not mean that a listed carrier runs a direct service on this route. Carrier choice depends on the trade lane, cargo classification and each carrier's dangerous-goods acceptance at booking. The final carrier is confirmed on the booking.
Risk & mitigation
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| ESS unit not isolated or poorly distributed in a break-bulk hold | Lianyungang, break-bulk loading | Manufacturer's written isolation steps; safety meeting | Manufacturer / ship, coordinated by Anxin |
| Permit to unlade delayed for a late or inaccurate AMS manifest | Port of discharge | Final cargo data given to the carrier before the cut-off | Carrier / NVOCC, with data from Anxin |
Questions
Yes, if the container moves on a public highway. The IMDG waiver in 49 CFR 171.25(d)(2) only covers cargo that stays on the ship or moves between vessels; otherwise 49 CFR 172.604 requires a monitored number answered by someone with the emergency information. Goods shipped as 'Battery powered equipment' are exempt.
Yes, but the Coast Guard's icebreaking season on the Gulf of St Lawrence and the river typically runs from December to May, and vessels must report their ice class to ECAREG CANADA. We confirm the vessel's ice capability when booking.
Its June 2025 break-bulk ESS guide recommends 20–50% remaining charge, with converters and monitoring off and circuits disconnected.
References
Next step
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We check carrier acceptance for Lianyungang → Duluth before any booking, and ask for missing battery documents first.
All destinations from Lianyungang · United States ports

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