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 Houston
Guangzhou to Houston
South China Sea · Taiwan Strait · North Pacific · Eastern Pacific · Panama Canal · Caribbean Sea · Yucatán Channel · Gulf of Mexico
- GuangzhouChina origin
- South China Sea
- Taiwan Strait
- North Pacific
- Eastern Pacific
- Panama Canal
- Caribbean Sea
- Yucatán Channel
- Gulf of Mexico
- HoustonUnited States
Lithium batteries for Houston go out of Nansha, at the mouth of the Pearl River. On the way they face the Pacific, the Panama Canal and the Caribbean, and they arrive at the port of Houston.
Houston means US customs filings that are due while the container is still in Guangzhou, and a supply chain CBP may ask to see. The 5 points below are particular to this lane; each comes with what we do and the paperwork it touches.
What we need to start
- Nansha export
- Dongguan–Nansha one-box
- ISF filer
- Supply-chain tracing file
- HTS code 8507.60
Route profile
The Guangzhou → Houston route in brief
Asia – Americas via the Panama Canal
Gatun Lake levels set how much a ship can load through Panama; the Caribbean leg then crosses hurricane waters from June to November.
Where this route gets difficult
5 points to plan for on the Guangzhou → Houston route
Listed from loading in Guangzhou to import into United States, each with what we do about it.
- 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
Gatun Lake sets the Neopanamax draft
How deep ships can load through Panama's new locks depends on Gatun Lake. In September 2026 the Canal Authority's advisory A-33-2026 postponed a cut in the Neopanamax draft from 14.63 m to 14.48 m that had been due on 1 October, citing lake levels; a lower limit reduces what a ship bound for Houston can carry.
What Anxin does: We check the canal advisory in force when we quote for Houston and ask carriers to confirm that the booked vessel's routing and any canal surcharge will not change before sailing.
- 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 Houston booking, we check the carton photos for the US marking or CAO label before stuffing, not after discharge.
- Import country
Port Houston will not take DG papers at the gate
Bayport and Barbours Cut use a paperless hazardous pre-advise system. The shipping line submits the DG documents, the trucker's ExpressPass carries a Haz_No_Ingate hold until the hazardous team approves the unit, and papers handed over at the gate are refused.
What Anxin does: We make sure the carrier has the final DG documents for Houston well before arrival and tell the trucker to check that the hold is released in Lynx before sending a driver.
- Import country
Day 15 at the terminal: the General Order deadline
US customs rules give an unentered container 15 calendar days at the place of unlading. After that the carrier hands it to a bonded general order warehouse, with transport and storage at the consignee's risk and expense, and for DG cargo that needs specialized storage the port director decides where it is kept (19 CFR 4.37).
What Anxin does: We check with the importer's broker that the entry can be filed before arrival at Houston, and chase any missing invoice or HTS detail while the ship is still at sea.
Documents & compliance
Checklist for Guangzhou → Houston
Anxin reviews documents supplied by the shipper, manufacturer and importer; it does not issue test reports, safety data sheets or import certificates.
Before loading in Guangzhou
- For ESS: written shipping state of charge and anti-activation measures from the manufacturer
- 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
- Safety data sheet and dangerous goods safe-carriage declaration for the MSA cargo report
Carrier and voyage
- Canal routing and any canal-related surcharge confirmed for the booked vessel
- 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 the importer in United States
- 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
Before you book
Match the details first
We line up UN numbers, model names and package counts across the Guangzhou 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 Houston.
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 → Houston
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Draft cut reduces capacity or adds surcharges | Panama Canal | Advisory checked at quotation; carrier confirmation | Carrier, checked by Anxin |
| SP188 cartons without the US marking | Discharge and onward trucking | Marking or CAO label checked on carton photos before stuffing | Shipper, checked by Anxin |
Questions
Questions about shipping from Guangzhou to Houston
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.
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.
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)
- Advisory to Shipping A-33-2026: Postponement of maximum authorized draft adjustment in the Neopanamax locks (Panama Canal Authority)
- Nansha MSA meeting on the safe carriage of energy-storage batteries (Guangzhou Nansha District Government)
Next step
From enquiry to import
- 1EnquiryCargo, origin, destination
- 2Documents checkUN 38.3, SDS, packing
- 3BookingAfter carrier acceptance
- 4HandoverAt Guangzhou
- 5ImportClearance at Houston
Prefer chat? Chat on WhatsApp (+86 151 4514 5178)
After you send it
We check carrier acceptance for Guangzhou → Houston before any booking, and ask for missing battery documents first.
All destinations from Guangzhou · United States ports
Need Guangzhou → Houston reviewed?
Share the cargo facts; we review the route in writing.
Request a Quote