Guangzhou (Nansha)
Pearl River Delta battery cargo through Nansha, where a September 2026 agreement lets Dongguan-inspected containers load without a second MSA check, and where typhoon season runs June to October.
North America · sea freight from Guangzhou
Shipping from Guangzhou to Martha's Vineyard
Guangzhou to Martha's Vineyard
South China Sea · Taiwan Strait · North Pacific · Eastern Pacific · Panama Canal · Caribbean Sea · Windward Passage · US East Coast
- GuangzhouChina origin
- South China Sea
- Taiwan Strait
- North Pacific
- Eastern Pacific
- Panama Canal
- Caribbean Sea
- Windward Passage
- US East Coast
- Martha's VineyardUnited States
Lithium batteries for Martha's Vineyard go from the Pearl River Delta via Nansha. On the way they face the Pacific, the Panama Canal and the Caribbean, and they arrive at the port of Martha's Vineyard.
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
- Dongguan–Nansha one-box
- Typhoon season Jun–Oct
- ISF filer
- Supply-chain tracing file
- HTS code 8507.60
Martha's Vineyard is listed for reference only while its commercial cargo use is being checked; no offer is made on this page.
Route profile
The Guangzhou → Martha's Vineyard route in brief
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.
Where this route gets difficult
6 pain points from Guangzhou to Martha's Vineyard
In the order the cargo meets them: at the loading port, at sea, at Martha's Vineyard and at customs in United States.
- Origin port
One-box inspection now reaches Nansha
Since 22 September 2026 Guangzhou MSA accepts Dongguan MSA's factory inspection for boxes loading at Nansha and re-inspects only when necessary. The first container was stuffed in Dongguan that day and left Nansha for Singapore on 24 September. Because the arrangement is new at Nansha, the factory record needs to be correct the first time.
What Anxin does: We ask at booking whether your Dongguan factory can use the Nansha one-box arrangement and make sure the stuffing photos, packing certificate and DG declaration match, because a mismatch is the 'necessary' case that brings the second inspection back.
- Origin port
A recommended 25% charge for ESS from Nansha
Nansha MSA told a July 2024 meeting on energy-storage carriage that ESS batteries should travel at roughly 25% state of charge, with accidental activation prevented. It is advice, not a binding rule, yet it is the number the local authority has put on the record.
What Anxin does: For ESS cargo leaving Nansha we ask the manufacturer to state the shipping state of charge and the anti-activation measures in writing, and put both in the documents the carrier sees.
- 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 Martha's Vineyard.
What Anxin does: For October–April arrivals we check blocking and bracing on stuffing photos before sealing, and allow slack in the delivery plan.
- Import country
'China' has to be marked on each article or its container
19 CFR 134.11 requires every imported article, or its container, to carry the English name of the country of origin in a conspicuous place, as legibly, indelibly and permanently as the article allows, at the time it is imported. Batteries and battery products reaching Martha's Vineyard without it can be held until they are marked.
What Anxin does: We check product and carton photos for a durable 'Made in China' marking before stuffing in Guangzhou, rather than leaving it for re-marking in a US warehouse.
- Import country
Unentered battery containers go to General Order after 15 days
A container landed at Martha's Vineyard without a release permit may stay at the terminal only until the 15th calendar day. The carrier must then notify CBP and a bonded general order warehouse, which moves and stores the goods at the consignee's risk and expense (19 CFR 4.37). Not every general order warehouse can take Class 9 battery cargo, and where specialized storage is missing the port director decides where it goes.
What Anxin does: We check with the importer's broker that the entry can be filed before arrival at Martha's Vineyard, and chase any missing invoice or HTS detail while the ship is still at sea.
- Import country
The emergency response number has to be answered live
US rules want a numeric emergency response telephone number on the shipping paper for battery cargo that leaves Martha's Vineyard by road, monitored for as long as the goods are in transport and answered by a person with the emergency information for UN3480 or UN3090. A call-back service fails the test (49 CFR 172.604); only the IMDG waiver for cargo that never touches a public highway avoids it.
What Anxin does: Before sailing we confirm who provides the 24-hour number for the US leg, usually the importer's emergency response provider, and put it with the contract reference on the DG documents we send to the trucker.
Documents & compliance
Documents to line up for Guangzhou → Martha's Vineyard
Test reports, safety data sheets and import certificates come from the shipper, factory and importer, not from Anxin; our part is to review them before booking.
At the Guangzhou end
- For ESS: written shipping state of charge and anti-activation measures from the manufacturer
- 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
- 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
For import into United States
- 24-hour emergency response number (and provider reference) for the US road leg
- CPSC certificate data and eFiling arrangement, if the product is subject to certification
- Importer of record and the licensed customs broker who will file the entry
Before you book
Send the file once, complete
Most delays on this route start with a document that exists but does not match: a UN number, a model name or a package count that differs between the Guangzhou filings, the carrier booking and the United States import file. We check the three against each other before the booking is confirmed.
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 Guangzhou → Martha's Vineyard
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Second inspection at Nansha because factory records are incomplete | Dongguan factory → Nansha | Photos, packing certificate and declaration matched before trucking | Anxin |
| Truck stopped without a monitored emergency number | Road leg from the port | Emergency response provider confirmed before sailing | Importer, checked by Anxin |
Questions
Guangzhou → Martha's Vineyard: questions we are asked
No. The carrier must also send its cargo declaration through AMS 24 hours before loading, and CBP will not issue the permit to unlade without it.
1 June to 30 November, peaking around 10 September, according to the US National Hurricane Center.
Nansha MSA has recommended around 25% for ESS batteries and measures against accidental activation. Treat it as the local authority's recommendation; the carrier's own acceptance conditions also apply.
References
Official sources for this page
- 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))
- 49 CFR 171.25 – Additional requirements for the use of the IMDG Code (eCFR / PHMSA)
- 49 CFR 172.604: Emergency response telephone number (eCFR / PHMSA)
- Update: Certificates of Compliance and eFiling (U.S. Consumer Product Safety Commission)
- Advisory to Shipping A-33-2026: Postponement of maximum authorized draft adjustment in the Neopanamax locks (Panama Canal Authority)
- Tropical Cyclone Climatology (NOAA National Hurricane Center)
- Hurricane force extratropical cyclones observed using QuikSCAT (Mariners Weather Log 49-1) (NOAA Ocean Prediction Center)
- Nansha MSA meeting on the safe carriage of energy-storage batteries (Guangzhou Nansha District Government)
- 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 Guangzhou
- 5ImportClearance at Martha's Vineyard
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After you send it
We check carrier acceptance for Guangzhou → Martha's Vineyard before any booking, and ask for missing battery documents first.
All destinations from Guangzhou · United States ports
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