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 Shenzhen
Shipping from Shenzhen to Honolulu
Shenzhen to Honolulu
South China Sea · Luzon Strait · Philippine Sea · North Pacific
- ShenzhenChina origin
- South China Sea
- Luzon Strait
- Philippine Sea
- North Pacific
- HonoluluUnited States
This route runs out of Shenzhen's Yantian and Shekou terminals, then follows a great-circle crossing of the North Pacific; at the far end is the port of Honolulu.
Honolulu means US customs filings that are due while the container is still in Shenzhen, and a supply chain CBP may ask to see. Below are 5 route-specific points to plan for, what we do about each, and the documents to have ready before booking.
What we need to start
- Typhoon season Jun–Oct
- Yantian / Shekou export
- Supply-chain tracing file
- HTS code 8507.60
- ISF filer
Route profile
How Shenzhen → Honolulu differs from other lanes
United States
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
5 points to plan for on the Shenzhen → Honolulu route
Loading port first, then the sea leg, then Honolulu and the United States market.
- Origin port
Dongguan's packaging certificate data is shared
Dongguan, home to more than 500 battery companies, supplies much of the cargo leaving Shenzhen. Since September 2026 Dongguan Customs and Dongguan MSA share dangerous-goods packaging certificate data, described as a first in China, and act jointly against concealed and false declarations; the one-box route to Yantian, 409 containers by then, relies on the same record.
What Anxin does: We compare the packaging certificate with the MSA cargo report (UN number, packaging code, number of packages) before either goes in, so the shared data shows no gap.
- Sea corridor
An open-ocean crossing where weather is the main risk
From Shenzhen the drawn corridor to Honolulu runs across the North Pacific without a canal or Red Sea passage, so weather replaces chokepoints as the risk. The ONE Apus, bound from Yantian to Long Beach in November 2020, had a stack collapse in a storm about 1,600 nautical miles north-west of Hawaii; her owners said more than 1,900 containers could be lost or damaged, up to 40 of them hazmat.
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
AMS: the manifest CBP sees before the ship leaves Shenzhen
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 Honolulu 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 Shenzhen, so the AMS filing and the DG manifest say the same thing.
- Import country
The FMC's 30-day rules on demurrage and detention bills
If a battery container waits at Honolulu, the demurrage or detention invoice has to arrive within 30 days and carry accurate and sufficient information, or the charge is not owed (46 CFR part 541). The billed party then has at least 30 days to dispute it; in 2025 the D.C. Circuit struck down only the rule on who may be invoiced.
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.
- Import country
Section 301 at 25% on lithium-ion non-EV batteries from January 2026
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.
Documents & compliance
What to have ready: Shenzhen to Honolulu
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.
Before loading in Shenzhen
- Confirmation from the carrier of the DG cut-off at Yantian or Shekou, rechecked in typhoon weeks
- 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)
Carrier and voyage
- Stuffing photos before, during and after packing, checked for blocking and bracing
- SP188 cartons: US 'forbidden aboard passenger aircraft' marking or CAO label
- UN 38.3 test summary for every cell and battery type
At the United States end
- HTSUS classification from the broker (8507.60.0010 vs .0020 decides the Section 301 line)
- ISF filer named; stuffing location and consolidator sent right after packing
- Supply-chain tracing file for cells and lithium inputs, in case of a UFLPA request
Before you book
Match the details first
We line up UN numbers, model names and package counts across the Shenzhen filings, the booking with the carrier and the documents for United States before the booking is confirmed, so that a mismatch is fixed at origin rather than discovered at Honolulu.
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 table for Shenzhen → Honolulu
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Packaging certificate and MSA filing disagree; shipment flagged | Dongguan → Yantian | Line-by-line comparison before filing | Anxin with the declarant |
| 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
Shenzhen → Honolulu: questions we are asked
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.
Since September 2026 Dongguan Customs and Dongguan MSA share dangerous-goods packaging certificate data and act jointly against false declarations, so the packaging certificate and the MSA filing should match exactly.
References
Regulations and port sources cited
- 19 CFR 149.2 – Importer security filing: requirement and time of transmission (eCFR / CBP)
- 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)
- 49 CFR 171.25 – Additional requirements for the use of the IMDG Code (eCFR / PHMSA)
- 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)
- Forecasting yearly number of tropical cyclones affecting Hong Kong (tropical cyclone season June–October, most active July–September) (Hong Kong Observatory)
- 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 Shenzhen
- 5ImportClearance at Honolulu
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After you send it
We check carrier acceptance for Shenzhen → Honolulu before any booking, and ask for missing battery documents first.
All destinations from Shenzhen · United States ports
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