Transpacific (North Pacific)
No canal or Red Sea passage, but a North Pacific crossing where winter storms have collapsed container stacks.
North America · sea freight from Dalian
Shipping from Dalian to Redwood City
Dalian to Redwood City
Yellow Sea · Korea Strait · Sea of Japan · Tsugaru Strait · North Pacific
- DalianChina origin
- Yellow Sea
- Korea Strait
- Sea of Japan
- Tsugaru Strait
- North Pacific
- Redwood CityUnited States
This route runs through Dayaowan, where Liaoning's first JT/T 1543 lithium export sailed in May 2025, then follows the open North Pacific, where weather is the main risk; at the far end is the port of Redwood City.
The United States applies Section 301 and UFLPA scrutiny to Chinese lithium batteries and wants its manifest data before loading. 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
- Winter ice & spring fog
- Dalian Dayaowan export
- Supply-chain tracing file
- HTS code 8507.60
- ISF filer
Route profile
How Dalian → Redwood City differs from other lanes
United States
Two filings before loading, a Section 301 line set by classification, UFLPA supply-chain questions and a 15-day General Order clock after discharge.
Where this route gets difficult
What to watch between Dalian and Redwood City: 5 points
They run from the Dalian terminal through the voyage to Redwood City and the United States import file.
- Origin port
Ice in the northern Yellow Sea from January
Sea ice forms every winter in the Bohai Sea and northern Yellow Sea. In winter 2021/22 China's marine forecast centre expected floating ice about 15 nautical miles out in the northern Yellow Sea, where Dalian's Dayaowan lies, and about 60 in Liaodong Bay, peaking from mid-January to mid-February.
What Anxin does: For January–February sailings from Dalian we allow extra time between stuffing and the DG cut-off and reconfirm the vessel schedule the week before loading.
- Sea corridor
No chokepoint, but North Pacific storms
The drawn corridor from Dalian crosses the North Pacific, with no canal and no Red Sea exposure. Weather is the risk instead. In November 2020 the ONE Apus, sailing from Yantian to Long Beach, suffered a stack collapse in a storm about 1,600 nautical miles north-west of Hawaii; its owners reported that more than 1,900 containers could be lost or damaged, including up to 40 hazmat boxes.
What Anxin does: For winter sailings especially, we review blocking and bracing on stuffing photos against the CINS points before sealing, and make sure the DG declaration is complete, so a damaged box can be identified and handled correctly.
- Import country
The carrier's AMS manifest is due 24 hours before loading
Besides the importer's ISF, CBP must receive the carrier's electronic cargo declaration through AMS 24 hours before the container is laden in Dalian (19 CFR 4.7). CBP does not issue the permit to unlade at Redwood City until it has that declaration, and late, incomplete or inaccurate cargo data can delay or deny it.
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 Dalian, so the AMS filing and the DG manifest say the same thing.
- Import country
Brand and chemistry labels on built-in-battery products
California has added battery-embedded products to its electronic-waste program: from 1 January 2026 buyers pay a recycling fee at purchase, and each covered product must show the manufacturer's name or brand and the battery chemistry (or put it on the maker's website), with an annual product notice to CalRecycle and retailers.
What Anxin does: If the goods landing at Redwood City 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.
- Import country
Demurrage and detention invoices must follow FMC rules
Battery containers held for DG checks or paperwork can run up demurrage and detention at Redwood City. Under the FMC's billing rule, in force since May 2024, carriers and terminals must invoice within 30 days with accurate, complete information, or the charge is not payable, and the billed party has at least 30 days to ask for a waiver or refund. A 2025 court ruling set aside only the section on who may be billed.
What Anxin does: We keep the dates of discharge, availability and any DG hold for each container, so the importer can check invoices against them and dispute charges inside the FMC time limits.
Documents & compliance
Checklist for Dalian → Redwood City
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.
In Dalian, before the box is loaded
- Customs packaging use-appraisal result for the dangerous goods packaging (with the maker's performance appraisal)
- Container packing certificate signed by a certified packing inspector after supervised stuffing
- Transport-condition classification report where applicable
- Load plan showing even weight distribution (no more than 60% of the cargo weight in either half of the container length)
- 'Made in China' marking on articles or containers checked on photos
Carrier and voyage
- Stuffing photos before, during and after packing, checked for blocking and bracing
- Dangerous goods declaration with UN number (3480 / 3481 / 3090 / 3091), proper shipping name and packing instruction (P903, or P908/P911 for damaged)
- Lithium battery mark (SP188 cargo) or class 9 labels and placards
For import into United States
- HTSUS classification from the broker (8507.60.0010 vs .0020 decides the Section 301 line)
- Supply-chain tracing file for cells and lithium inputs, in case of a UFLPA request
Before you book
One consistent file
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
What could go wrong from Dalian to Redwood City, and who acts
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Ice delays berthing in mid-winter | Northern Yellow Sea, Jan–Feb | Extra time before cut-off; schedule reconfirmed | Carrier, monitored by Anxin |
| Stack collapse or cargo shift in a North Pacific storm | Mid-Pacific | Blocking and bracing checked before sealing; complete DG data for incident response | Packing site / carrier, checked 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
Common questions on the Dalian → Redwood City route
For lithium-ion batteries classified in HTSUS 8507.60.0020 and entered from 1 January 2026, USTR set the Section 301 additional duty at 25%; EV traction batteries in 8507.60.0010 have been at 25% since 2024. Other duties can apply on top. The importer's customs broker confirms the classification and total duty; we make sure the invoice gives the broker enough detail to do so.
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
Regulations and port sources cited
- 19 CFR 134.11: Country of origin marking required (Legal Information Institute (e-CFR text))
- 19 CFR 4.7: inward foreign manifest; advance filing of cargo declaration (24 hours before lading) (Legal Information Institute (e-CFR text))
- Section 301 Modifications Determination (Federal Register notice, Sept 2024) (Office of the U.S. Trade Representative)
- DHS designates steel, copper, lithium, caustic soda and red dates as UFLPA high-priority sectors (19 Aug 2025) (U.S. Department of Homeland Security)
- Hurricane force extratropical cyclones observed using QuikSCAT (Mariners Weather Log 49-1) (NOAA Ocean Prediction Center)
- Container ship ONE Apus; North Pacific Ocean (incident record) (NOAA IncidentNews)
- Sea ice arrives: what are the impacts? (Bohai and northern Yellow Sea, winter 2021/22) (China Meteorological Administration (from China Natural Resources News))
- Export dangerous goods packaging inspection: service guide (Chinese) (General Administration of Customs of China (Lanzhou Customs service guide))
Next step
From enquiry to import
- 1EnquiryCargo, origin, destination
- 2Documents checkUN 38.3, SDS, packing
- 3BookingAfter carrier acceptance
- 4HandoverAt Dalian
- 5ImportClearance at Redwood City
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After you send it
We check carrier acceptance for Dalian → Redwood City before any booking, and ask for missing battery documents first.
All destinations from Dalian · United States ports
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