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.
North America · sea freight from Shenzhen
Shipping from Shenzhen to Boca Grande
Shenzhen to Boca Grande
South China Sea · Taiwan Strait · East China Sea · North Pacific · Eastern Pacific · Panama Canal · Caribbean Sea · Yucatán Channel
- ShenzhenChina origin
- South China Sea
- Taiwan Strait
- East China Sea
- North Pacific
- Eastern Pacific
- Panama Canal
- Caribbean Sea
- Yucatán Channel
- Boca GrandeUnited States
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 Boca Grande.
US entry is decided as much by paperwork filed in China as by anything at the port. This page sets out 5 points specific to this route, how Anxin handles each one and which documents to prepare.
What we need to start
- Typhoon season Jun–Oct
- Yantian / Shekou export
- ISF filer
- Supply-chain tracing file
- HTS code 8507.60
Route profile
How Shenzhen → Boca Grande differs from other lanes
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.
Where this route gets difficult
What to watch between Shenzhen and Boca Grande: 5 points
They run from the Shenzhen terminal through the voyage to Boca Grande and the United States import file.
- 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.
- 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 Boca Grande can carry.
What Anxin does: We check the canal advisory in force when we quote for Boca Grande and ask carriers to confirm that the booked vessel's routing and any canal surcharge will not change before sailing.
- 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.
- 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 Boca Grande.
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.
- Import country
The ISF deadline falls before the box is loaded
CBP must have the Importer Security Filing 24 hours before the container is laden in Shenzhen, and its liquidated damages guidelines provide for a claim for each late, inaccurate or incomplete filing. The stuffing location and consolidator can only be filled in once the container is packed, which leaves a short window.
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.
Documents & compliance
Checklist for Shenzhen → Boca Grande
Anxin reviews documents supplied by the shipper, manufacturer and importer; 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
- '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)
- Container packing certificate signed by a certified packing inspector after supervised stuffing
For the shipping line
- 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 the importer in United States
- ISF filer named; stuffing location and consolidator sent right after packing
- Importer of record and the licensed customs broker who will file the entry
- Supply-chain tracing file for cells and lithium inputs, in case of a UFLPA request
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
What could go wrong from Shenzhen to Boca Grande, and who acts
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Container reopened at the terminal because records do not match | Factory → Yantian | Photos, packing certificate and DG declaration cross-checked before trucking | Anxin |
| Draft cut reduces capacity or adds surcharges | Panama Canal | Advisory checked at quotation; carrier confirmation | Carrier, checked by Anxin |
| UFLPA detention pending supply-chain evidence | CBP at entry | Importer prepares tracing documents before shipping; consistent manufacturer data on all documents | Importer |
| Late or inaccurate ISF | Before loading abroad | Stuffing and consolidator data sent to the ISF filer immediately after packing | Anxin with the ISF filer |
Questions
Common questions on the Shenzhen → Boca Grande route
For lithium-ion batteries classified in HTSUS 8507.60.0020 and entered from 1 January 2026, USTR set the Section 301 additional duty at 25%; EV traction batteries in 8507.60.0010 have been at 25% since 2024. Other duties can apply on top. The importer's customs broker confirms the classification and total duty; we make sure the invoice gives the broker enough detail to do so.
1 June to 30 November, peaking around 10 September, according to the US National Hurricane Center.
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
Regulations and port sources cited
- 19 CFR 134.11: Country of origin marking required (Legal Information Institute (e-CFR text))
- 19 CFR 149.2 – Importer security filing: requirement and time of transmission (eCFR / CBP)
- Section 301 Modifications Determination (Federal Register notice, Sept 2024) (Office of the U.S. Trade Representative)
- DHS designates steel, copper, lithium, caustic soda and red dates as UFLPA high-priority sectors (19 Aug 2025) (U.S. Department of Homeland Security)
- 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)
- Yantian MSA runs 'one-box' model for lithium battery sea exports (Chinese), 8 May 2026 (Shenzhen Development and Reform Commission (source: Shenzhen MSA))
- Forecasting yearly number of tropical cyclones affecting Hong Kong (tropical cyclone season June–October, most active July–September) (Hong Kong Observatory)
- 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 Shenzhen
- 5ImportClearance at Boca Grande
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After you send it
We check carrier acceptance for Shenzhen → Boca Grande before any booking, and ask for missing battery documents first.
All destinations from Shenzhen · United States ports
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