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North America · sea freight from Shenzhen

Shipping from Shenzhen to Gloucester

Shenzhen to Gloucester

South China Sea · Taiwan Strait · North Pacific · Eastern Pacific · Panama Canal · Caribbean Sea · Windward Passage · US East Coast

Sea corridor illustration: Shenzhen to Gloucester, United States Simplified map with a curved corridor from Shenzhen via South China Sea, Taiwan Strait, North Pacific, Eastern Pacific, Panama Canal, Caribbean Sea, Windward Passage, US East Coast to Gloucester. Illustration only; not a vessel track or schedule. NORTH AMERICASOUTH AMERICAPACIFIC OCEAN North PacificPanama Canal ShenzhenCHINA ORIGIN GloucesterUNITED 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. Windward Passage
  9. US East Coast
  10. GloucesterUnited 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 factories around the Pearl River Delta through Yantian or Shekou, then follows a Panama Canal corridor whose draft limit depends on Gatun Lake; at the far end is the port of Gloucester.

The US side starts with two filings due before loading and ends with a road leg that must carry a live emergency number. 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
  • Supply-chain tracing file
  • HTS code 8507.60
  • ISF filer
Ask about this route United States ports from Shenzhen

Route profile

How Shenzhen → Gloucester differs from other lanes

Sea corridor

Asia – Americas via the Panama Canal

A Pacific crossing, a Panama Canal transit that depends on lake levels, and a Caribbean passage in hurricane season.

Import country

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.

Yantian port area in Shenzhen seen from the hills, with container berths along the bay
A loaded container ship on the horizon

Where this route gets difficult

6 pain points from Shenzhen to Gloucester

They run from the Shenzhen terminal through the voyage to Gloucester and the United States import file.

  1. 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.

  2. Origin port

    Cut-offs in Shenzhen's typhoon weeks

    June to October is the regional tropical cyclone season according to the Hong Kong Observatory, peaking July to September. Because DG boxes need approved MSA filings and a signed packing certificate before loading, a gate closure or rolled vessel in those weeks can move the entire document chain to another sailing.

    What Anxin does: From June to October we build slack into the stuffing date, confirm the DG cut-off with the carrier the week before loading, and resubmit filings promptly if the vessel changes.

  3. Sea corridor

    Winter gales on the final East Coast leg

    Between October and April the North Atlantic off the US East Coast sees mid-latitude storms with hurricane-force winds, most often in January according to NOAA's Ocean Prediction Center, and that is the water the ship crosses on its way to Gloucester.

    What Anxin does: For October–April arrivals we check blocking and bracing on stuffing photos before sealing, and allow slack in the delivery plan.

  4. Import country

    A US-only carton mark for SP188 shipments

    Packages of UN3480 or UN3090 moving under IMDG special provision 188 skip the DG declaration at sea, yet 49 CFR 171.25(b)(3) still wants the 'FORBIDDEN FOR TRANSPORT ABOARD PASSENGER AIRCRAFT' mark or a Cargo Aircraft Only label on each one, and on packages of batteries with or in equipment over 5 kg net.

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

  5. Import country

    Product defects must be reported to CPSC within 24 hours

    US importers, like manufacturers and retailers, must tell CPSC within 24 hours once they have information reasonably suggesting that a consumer product fails a safety rule or has a defect that could create a substantial hazard. Battery overheating reports from customers can trigger that duty, and CPSC expects any investigation to take no more than about 10 working days.

    What Anxin does: We keep the manufacturer's batch records, UN 38.3 summaries and packing photos for each shipment to Gloucester, so the importer can answer CPSC questions quickly.

  6. Import country

    The FMC's 30-day rules on demurrage and detention bills

    If a battery container waits at Gloucester, 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.

Locator map of Gloucester, United StatesGloucester
Locator map in the same projection as the corridor map; the dot marks the listed port position (39.90°N, 75.13°W).
Container ship being unloaded under red gantry cranes in Vancouver

Documents & compliance

Documents to line up for Shenzhen → Gloucester

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
  • 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

For the carrier and the voyage

  • Canal routing and any canal-related surcharge confirmed for the booked vessel
  • 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

  • 24-hour emergency response number (and provider reference) for the US road leg
  • Importer of record and the licensed customs broker who will file the entry
Cartons on a pallet being stretch-wrapped
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 Gloucester.

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 → Gloucester

RiskWhereMitigationWho acts
Typhoon closes terminals or delays the vessel after filings are madeYantian / Shekou, Jun–OctSlack in stuffing date; refile quickly on vessel changeAnxin with the declarant
Container reopened at the terminal because records do not matchFactory → YantianPhotos, packing certificate and DG declaration cross-checked before truckingAnxin
SP188 cartons without the US markingDischarge and onward truckingMarking or CAO label checked on carton photos before stuffingShipper, checked by Anxin

Questions

Questions about shipping from Shenzhen to Gloucester

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.

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.

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. 49 CFR 171.25 – Additional requirements for the use of the IMDG Code (eCFR / PHMSA)
  3. 49 CFR 172.604: Emergency response telephone number (eCFR / PHMSA)
  4. Advisory to Shipping A-33-2026: Postponement of maximum authorized draft adjustment in the Neopanamax locks (Panama Canal Authority)
  5. Hurricane force extratropical cyclones observed using QuikSCAT (Mariners Weather Log 49-1) (NOAA Ocean Prediction Center)
  6. Yantian MSA runs 'one-box' model for lithium battery sea exports (Chinese), 8 May 2026 (Shenzhen Development and Reform Commission (source: Shenzhen MSA))
  7. Forecasting yearly number of tropical cyclones affecting Hong Kong (tropical cyclone season June–October, most active July–September) (Hong Kong Observatory)

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 Gloucester
Each step is confirmed in writing; an enquiry does not create a booking.

Ask about Shenzhen → Gloucester

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 → Gloucester 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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