Dalian (Dayaowan)
North-east China's battery gateway at Dayaowan, with a small but growing lithium export flow, a local MSA that has named misdeclaration as its main problem, and both winter ice and spring fog.
North America · sea freight from Dalian
Dalian to Los Angeles
Yellow Sea · Korea Strait · Sea of Japan · Tsugaru Strait · North Pacific
From Dalian to Los Angeles, cargo moves through Dayaowan, crosses a great-circle crossing of the North Pacific, and is discharged at Los Angeles, where the drayage leg out of Terminal Island is regulated as a US hazardous-materials movement.
US entry is decided as much by paperwork filed in China as by anything at the port. This page sets out 5 points specific to this route, how Anxin handles each one and which documents to prepare.
What we need to start
Route profile
North-east China's battery gateway at Dayaowan, with a small but growing lithium export flow, a local MSA that has named misdeclaration as its main problem, and both winter ice and spring fog.
US entry hinges on filings made in China (ISF and AMS), a traceable lithium supply chain and a road leg that is regulated as a hazmat move.


Where this route gets difficult
They run from the Dalian terminal through the voyage to Los Angeles and the United States import file.
Sea fog is one of the main marine hazards of the Yellow and Bohai Seas according to the China Meteorological Administration, concentrated between April and July and with a serious effect on shipping. A vessel held at anchor by fog can arrive late enough to push a box beyond the sailing its documents name.
What Anxin does: In the fog season we avoid tight stuffing-to-cut-off gaps and keep the filing data ready to amend if the vessel changes.
NOAA's Ocean Prediction Center found hurricane-force winds (64 knots and above) in North Pacific mid-latitude storms in every month from October to April, peaking in December, with 15 to 23 such storms per season in its 2001–2004 records. They are not typhoons, so they do not follow the tropical calendar.
What Anxin does: For October–April sailings we check blocking and bracing on stuffing photos before sealing and confirm the full DG data are on the manifest.
The truck move out of Los Angeles is a US hazardous-materials shipment. 49 CFR 171.25 accepts IMDG packaging and marks for the road leg, but the shipping papers and placards must meet part 172 subparts C and F and the move follows part 177; a driver given incomplete DG data at the gate cannot take the container.
What Anxin does: We pass the full DG description, emergency response details and placarding information to the importer's drayage carrier with the arrival notice, not on the day of collection.
DHS added lithium to the Uyghur Forced Labor Prevention Act high-priority sectors in August 2025. By then CBP had stopped more than 16,700 shipments for UFLPA examination. For battery importers the practical effect is that CBP can ask where cells, cathode and lithium compounds came from, and a shipment waits while the importer answers.
What Anxin does: We tell the importer at quotation stage that supply-chain tracing may be requested, and keep manufacturer names and addresses consistent across invoice, packing list and ISF so the paper trail does not contradict itself.
Under California SB 1215, consumers have paid a recycling fee on covered battery-embedded products since 1 January 2026, and those products must be labelled with the maker's name or brand and the battery chemistry, or give that information on the maker's website. Manufacturers must also list covered and exempt products in an annual notice to retailers and CalRecycle.
What Anxin does: If the goods landing at Los Angeles are devices with built-in batteries for sale in California, we ask the brand owner to confirm the chemistry labelling and the CalRecycle notice before shipping.

Documents & compliance
Test reports, safety data sheets and import certificates come from the shipper, factory and importer, not from Anxin; our part is to review them before booking.

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 Dalian 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 |
|---|---|---|---|
| Fog hold delays the vessel; filings need amending | Yellow Sea, Apr–Jul | Amendment-ready filing data | Anxin with the declarant |
| Heavy-weather damage in a winter storm | North Pacific, Oct–Apr | CINS stuffing checks | Packing site, checked by Anxin |
| Truck refused at the gate for missing DG paperwork | Los Angeles container terminals | DG description and emergency data sent to the drayage carrier with the arrival notice | Anxin with the importer's trucker |
| UFLPA detention pending supply-chain evidence | CBP at entry | Importer prepares tracing documents before shipping; consistent manufacturer data on all documents | Importer |
Questions
Yes. Under 49 CFR 171.25(b)(3), SP188 packages of UN3480 or UN3090 need the 'FORBIDDEN FOR TRANSPORT ABOARD PASSENGER AIRCRAFT' marking or a Cargo Aircraft Only label, and so do packages of batteries packed with or contained in equipment above 5 kg net. We check for it on carton photos before stuffing.
Weather is the main risk on this crossing: NOAA recorded hurricane-force North Pacific storms from October to April, most often in December. We tighten the packing checks for those sailings.
Sea ice forms every winter in the northern Yellow Sea; in 2021/22 it was forecast to reach about 15 nautical miles out there, peaking mid-January to mid-February. We plan extra time for those weeks.
References
Next step
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We check carrier acceptance for Dalian → Los Angeles before any booking, and ask for missing battery documents first.
All destinations from Dalian · United States ports

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