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North America · sea freight from Shenzhen

Shipping from Shenzhen to Duluth

Shenzhen to Duluth

South China Sea · Malacca Strait · Indian Ocean · Bab-el-Mandeb · Suez Canal · Strait of Gibraltar · Cabot Strait · St. Lawrence Seaway

Sea corridor illustration: Shenzhen to Duluth, United States Simplified map with a curved corridor from Shenzhen via South China Sea, Malacca Strait, Indian Ocean, Bab-el-Mandeb, Suez Canal, Strait of Gibraltar, Cabot Strait, St. Lawrence Seaway to Duluth. Illustration only; not a vessel track or schedule. CHINAINDIAAUSTRALIAAFRICAEUROPEINDIAN OCEANNORTH ATLANTICSOUTH ATLANTIC Singapore / MalaccaBab-el-MandebSuez CanalGibraltarSt. Lawrence Seaway ShenzhenCHINA ORIGIN DuluthUNITED STATES ShenzhenSOUTH CHINA SEAGUANGDONGDEPARTURE AREA
  1. ShenzhenChina origin
  2. South China Sea
  3. Malacca Strait
  4. Indian Ocean
  5. Bab-el-Mandeb
  6. Suez Canal
  7. Strait of Gibraltar
  8. Cabot Strait
  9. St. Lawrence Seaway
  10. DuluthUnited States
Geographic corridor illustration only, not a vessel track, port-call list or sailing schedule. The loading terminal, carrier, transshipment and dates are confirmed per shipment.

Lithium batteries for Duluth go out of Shenzhen's Yantian and Shekou terminals. On the way they face a corridor into Atlantic Canada's waters, and they arrive at the port of Duluth.

Duluth means US customs filings that are due while the container is still in Shenzhen, and a supply chain CBP may ask to see. This page sets out 6 points specific to this route, how Anxin handles each one and which documents to prepare.

What we need to start

  • Yantian / Shekou export
  • Typhoon season Jun–Oct
  • ISF filer
  • Supply-chain tracing file
  • HTS code 8507.60
Ask about this route United States ports from Shenzhen

Route profile

The Shenzhen → Duluth route in brief

Origin port

Shenzhen (Yantian / Shekou)

Pearl River Delta battery cargo, often stuffed at factories in Dongguan or Huizhou, exported through Yantian or Shekou, with a typhoon season from June to October.

Import country

United States

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.

Yantian port area in Shenzhen seen from the hills, with container berths along the bay
A cargo ship at anchor in calm water under a clear sky

Where this route gets difficult

6 points to plan for on the Shenzhen → Duluth route

In the order the cargo meets them: at the loading port, at sea, at Duluth and at customs in United States.

  1. 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.

  2. Origin port

    Inspected in Dongguan, loaded unopened at Yantian

    A large share of Shenzhen's battery exports is stuffed inland and trucked to the quay. In a May 2026 cross-regional 'one-box' pilot, Yantian MSA and Dongguan MSA jointly inspected four battery containers at a Dongguan factory and loaded them at Yantian without reopening them, which shows that the factory inspection record is what counts at the terminal.

    What Anxin does: We ask at booking whether your factory and the terminal's MSA office can use the one-box arrangement, and we have stuffing photos, the packing certificate and the DG declaration match exactly, so the container is not held for re-inspection.

  3. Sea corridor

    Atlantic hurricane season in late summer

    The Atlantic hurricane season runs from 1 June to 30 November, peaking around 10 September, with most activity from mid-August to mid-October.

    What Anxin does: For August–October arrivals we plan slack and pass the carrier's revised arrival to your consignee.

  4. Import country

    Which 8507.60 line decides the Section 301 duty

    For lithium-ion batteries entered from 1 January 2026 USTR set the Section 301 additional duty on HTSUS 8507.60.0020 (the non-EV line) at 25%, the level EV batteries under 8507.60.0010 reached in 2024. Other China-specific duties can be added and change at short notice, so the classification and the entry date both move the landed cost at Duluth.

    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.

  5. Import country

    UFLPA: lithium became a high-priority sector in August 2025

    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.

  6. Import country

    SP188 packages need an extra US marking

    Small cells and batteries shipped under IMDG special provision 188 do not need a dangerous goods declaration at sea, but 49 CFR 171.25(b)(3) adds a US condition: each package of UN3480 or UN3090 must carry the 'FORBIDDEN FOR TRANSPORT ABOARD PASSENGER AIRCRAFT' marking or a Cargo Aircraft Only label, and so must packages of batteries with or in equipment above 5 kg net. Cartons printed for other markets often lack it.

    What Anxin does: When the shipper declares SP188 for a Duluth booking, we check the carton photos for the US marking or CAO label before stuffing, not after discharge.

Locator map of Duluth, United StatesDuluth
Locator map in the same projection as the corridor map; the dot marks the listed port position (46.77°N, 92.10°W).
Containers on rail wagons next to a terminal in Vancouver

Documents & compliance

Documents to line up for Shenzhen → Duluth

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 Shenzhen, before the box is loaded

  • Confirmation from the carrier of the DG cut-off at Yantian or Shekou, rechecked in typhoon weeks
  • 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
  • Safety data sheet and dangerous goods safe-carriage declaration for the MSA cargo report
  • Customs packaging use-appraisal result for the dangerous goods packaging (with the maker's performance appraisal)

For the shipping line

  • In winter: ice capability of the vessel or feeder serving the port confirmed
  • 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)
  • CPSC certificate data and eFiling arrangement, if the product is subject to certification
  • 24-hour emergency response number (and provider reference) for the US road leg
Warehouse with red racking and pallets of boxes
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 Shenzhen 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 table for Shenzhen → Duluth

RiskWhereMitigationWho acts
Container reopened at the terminal because records do not matchFactory → YantianPhotos, packing certificate and DG declaration cross-checked before truckingAnxin
Packaging certificate and MSA filing disagree; shipment flaggedDongguan → YantianLine-by-line comparison before filingAnxin with the declarant
UFLPA detention pending supply-chain evidenceCBP at entryImporter prepares tracing documents before shipping; consistent manufacturer data on all documentsImporter
SP188 cartons without the US markingDischarge and onward truckingMarking or CAO label checked on carton photos before stuffingShipper, checked by Anxin

Questions

Shenzhen → Duluth: questions we are asked

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.

NOAA's storm study found hurricane-force winter storms from October to April, most often in January.

Yes, provided a certified packing inspector supervises the stuffing and signs the container packing certificate. Since May 2026 Yantian and Dongguan MSA have also piloted joint factory inspection so the container can be loaded at Yantian without reopening; we check whether your shipment can use it.

References

Where these points come from

  1. 19 CFR 134.11: Country of origin marking required (Legal Information Institute (e-CFR text))
  2. Section 301 Modifications Determination (Federal Register notice, Sept 2024) (Office of the U.S. Trade Representative)
  3. 49 CFR 171.25 – Additional requirements for the use of the IMDG Code (eCFR / PHMSA)
  4. 49 CFR 172.604: Emergency response telephone number (eCFR / PHMSA)
  5. Update: Certificates of Compliance and eFiling (U.S. Consumer Product Safety Commission)
  6. DHS designates steel, copper, lithium, caustic soda and red dates as UFLPA high-priority sectors (19 Aug 2025) (U.S. Department of Homeland Security)
  7. Ice Navigation in Canadian Waters, Chapter 1: Icebreaking and shipping support services (Canadian Coast Guard)
  8. Tropical Cyclone Climatology (NOAA National Hurricane Center)
  9. Hurricane force extratropical cyclones observed using QuikSCAT (Mariners Weather Log 49-1) (NOAA Ocean Prediction Center)
  10. Yantian MSA runs 'one-box' model for lithium battery sea exports (Chinese), 8 May 2026 (Shenzhen Development and Reform Commission (source: Shenzhen MSA))
  11. Forecasting yearly number of tropical cyclones affecting Hong Kong (tropical cyclone season June–October, most active July–September) (Hong Kong Observatory)
  12. Export dangerous goods packaging inspection: service guide (Chinese) (General Administration of Customs of China (Lanzhou Customs service guide))

Next step

From enquiry to import

  1. 1EnquiryCargo, origin, destination
  2. 2Documents checkUN 38.3, SDS, packing
  3. 3BookingAfter carrier acceptance
  4. 4HandoverAt Shenzhen
  5. 5ImportClearance at Duluth
Each step is confirmed in writing; an enquiry does not create a booking.

Ask about Shenzhen → Duluth

Origin and destination are filled in; add the cargo facts you have.

Sending this form starts a review; it does not confirm carriage. Full enquiry form

After you send it

We check carrier acceptance for Shenzhen → Duluth before any booking, and ask for missing battery documents first.

All destinations from Shenzhen · United States ports

Workers loading cartons from pallets by hand in a warehouse

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