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Shipment Status & Support

North America · sea freight from Shenzhen

Shipping from Shenzhen to Freeport

Shenzhen to Freeport

South China Sea · Taiwan Strait · North Pacific · Eastern Pacific · Panama Canal · Caribbean Sea · Yucatán Channel · Gulf of Mexico

Sea corridor illustration: Shenzhen to Freeport, United States Simplified map with a curved corridor from Shenzhen via South China Sea, Taiwan Strait, North Pacific, Eastern Pacific, Panama Canal, Caribbean Sea, Yucatán Channel, Gulf of Mexico to Freeport. Illustration only; not a vessel track or schedule. NORTH AMERICAPACIFIC OCEAN North PacificPanama Canal ShenzhenCHINA ORIGIN FreeportUNITED STATES ShenzhenSOUTH CHINA SEAGUANGDONGDEPARTURE AREA
  1. ShenzhenChina origin
  2. South China Sea
  3. Taiwan Strait
  4. North Pacific
  5. Eastern Pacific
  6. Panama Canal
  7. Caribbean Sea
  8. Yucatán Channel
  9. Gulf of Mexico
  10. FreeportUnited 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.

This route runs from Dongguan and Shenzhen factories via Yantian, where the one-box route had moved 409 battery containers by September 2026, then follows a Panama Canal corridor whose draft limit depends on Gatun Lake; at the far end is the port of Freeport.

The US side starts with two filings due before loading and ends with a road leg that must carry a live emergency number. 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

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

Route profile

The Shenzhen → Freeport route in brief

Sea corridor

Asia – Americas via the Panama Canal

A Panama Canal corridor whose Neopanamax draft depends on Gatun Lake levels, followed by the Caribbean during hurricane season.

Import country

United States

A duty line set by the exact 8507.60 code, lithium supply-chain questions under UFLPA, and ISF and AMS filings that are due before the box is loaded.

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 → Freeport route

In the order the cargo meets them: at the loading port, at sea, at Freeport 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

    The Caribbean leg runs through hurricane country

    After the canal, ships to Freeport cross the Caribbean, where the Atlantic hurricane season lasts from 1 June to 30 November and peaks around 10 September; an average year brings 14 named storms and 7 hurricanes. Ports close ahead of a storm and vessels wait or divert.

    What Anxin does: For August–October arrivals we build slack into delivery plans and pass the carrier's revised arrival straight to your consignee.

  4. Import country

    ISF closes 24 hours before loading in Shenzhen

    The Importer Security Filing must reach CBP no later than 24 hours before the container is laden aboard the vessel abroad. CBP's liquidated damages guidelines provide for a claim per violation for late, inaccurate or incomplete filings. Two of the data elements, the container stuffing location and the consolidator, only exist once the box is packed.

    What Anxin does: We send the importer's ISF filer the stuffing location, consolidator and manufacturer details as soon as the container is packed in Shenzhen, ahead of the vessel's loading window.

  5. 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 Freeport booking, we check the carton photos for the US marking or CAO label before stuffing, not after discharge.

  6. Import country

    CPSC eFiling for certified consumer products

    Consumer products that need a CPSC certificate have had their certificate data filed electronically at entry since 8 July 2026 (goods from a Foreign Trade Zone from 8 January 2027). A battery-powered product falls under it through the product's own rules, which the importer should settle before the goods reach Freeport.

    What Anxin does: We ask whether the goods are consumer products that need a CPSC certificate and, if so, who files it, so that the question is settled before the goods arrive.

Locator map of Freeport, United StatesFreeport
Locator map in the same projection as the corridor map; the dot marks the listed port position (28.95°N, 95.33°W).
Container ship being unloaded under red gantry cranes in Vancouver

Documents & compliance

What to have ready: Shenzhen to Freeport

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
  • 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

  • Canal routing and any canal-related surcharge confirmed for the booked vessel
  • UN 38.3 test summary for every cell and battery type
  • Dangerous goods declaration with UN number (3480 / 3481 / 3090 / 3091), proper shipping name and packing instruction (P903, or P908/P911 for damaged)

For import into United States

  • 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
  • 24-hour emergency response number (and provider reference) for the US road leg
Warehouse with red racking and pallets of boxes
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 Freeport.

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

Risks on this route and who deals with them

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
Hurricane closes ports or diverts the vesselCaribbean / Gulf, Jun–NovSlack in delivery planCarrier / consignee
Late or inaccurate ISFBefore loading abroadStuffing and consolidator data sent to the ISF filer immediately after packingAnxin with the ISF filer
SP188 cartons without the US markingDischarge and onward truckingMarking or CAO label checked on carton photos before stuffingShipper, checked by Anxin

Questions

Shenzhen → Freeport: 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.

It can. In September 2026 the Panama Canal Authority postponed a planned draft cut in the Neopanamax locks because of Gatun Lake levels (advisory A-33-2026). We check the advisory in force when quoting.

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

Where these points come from

  1. 19 CFR 134.11: Country of origin marking required (Legal Information Institute (e-CFR text))
  2. 19 CFR 149.2 – Importer security filing: requirement and time of transmission (eCFR / CBP)
  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. Advisory to Shipping A-33-2026: Postponement of maximum authorized draft adjustment in the Neopanamax locks (Panama Canal Authority)
  8. Tropical Cyclone Climatology (NOAA National Hurricane Center)
  9. Yantian MSA runs 'one-box' model for lithium battery sea exports (Chinese), 8 May 2026 (Shenzhen Development and Reform Commission (source: Shenzhen MSA))
  10. Forecasting yearly number of tropical cyclones affecting Hong Kong (tropical cyclone season June–October, most active July–September) (Hong Kong Observatory)
  11. 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 Freeport
Each step is confirmed in writing; an enquiry does not create a booking.

Ask about Shenzhen → Freeport

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 → Freeport before any booking, and ask for missing battery documents first.

All destinations from Shenzhen · United States ports

A forklift moving palletised cartons in a warehouse

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