Tianjin (Xingang)
North China's main container gateway, where Tianjin Customs lets DG containers be inspected at the factory and loaded on arrival within a booked port slot, and where the Bohai Bay freezes at its edges in mid-winter.
North America · sea freight from Tianjin
Shipping from Tianjin to Duluth
Tianjin to Duluth
Bohai Sea · Bohai Strait · Korea Strait · Panama Canal · Windward Passage · Cabot Strait · Gulf of St. Lawrence · St. Lawrence Seaway
- TianjinChina origin
- Bohai Sea
- Bohai Strait
- Korea Strait
- Panama Canal
- Windward Passage
- Cabot Strait
- Gulf of St. Lawrence
- St. Lawrence Seaway
- DuluthUnited States
This route runs through Tianjin, with its Beijiang and Dongjiang terminals on the Bohai Bay, then follows a corridor into Atlantic Canada's waters; at the far end is the port of Duluth.
US entry is decided as much by paperwork filed in China as by anything at the port. 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
- Factory-supervised loading
- Bohai Bay winter ice
- Supply-chain tracing file
- HTS code 8507.60
- ISF filer
Route profile
The Tianjin → Duluth route in brief
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.
Where this route gets difficult
5 pain points from Tianjin to Duluth
In the order the cargo meets them: at the loading port, at sea, at Duluth and at customs in United States.
- Origin port
Ice at the Haihe estuary in winter
Every winter the Bohai Sea ices over, and the Haihe estuary at Tianjin is one of the harder-hit areas. For 2021/22 the national marine forecast centre put the peak ice period between mid-January and mid-February, with floating ice about 5 nautical miles out in Bohai Bay. Ice and cold slow port work just as the Chinese New Year peak arrives.
What Anxin does: For January and February sailings from Tianjin we add slack between stuffing and the DG cut-off and confirm the vessel's berthing window with the carrier the week before loading.
- Sea corridor
The Seaway closes in winter and limits draft
Beyond Montreal the St. Lawrence Seaway is seasonal: the 2026 season opened on 22 March and is due to close in early January 2027 (5 January for the Montreal–Lake Ontario section). Its maximum draft there is 8.00 m, far less than an ocean container ship needs, so cargo for Duluth normally changes to a smaller ship, rail or truck along the way.
What Anxin does: We ask the carrier where the container leaves the ocean vessel and how it continues to Duluth, and we time winter deliveries around the Seaway closing date.
- Import country
Section 301 at 25% on lithium-ion non-EV batteries from January 2026
USTR's 2024 review moved lithium-ion batteries of HTSUS 8507.60.0020 (the 'other', non-passenger-EV line) from a 7.5% to a 25% additional duty for entries from 1 January 2026; EV traction batteries under 8507.60.0010 reached 25% in 2024. Other China-specific duties can stack on top and change with little notice, so the landed cost depends on the exact classification and entry date.
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 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 Duluth 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.
- Import country
The FMC's 30-day rules on demurrage and detention bills
If a battery container waits at Duluth, 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.
Documents & compliance
Checklist for Tianjin → Duluth
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.
In Tianjin, before the box is loaded
- 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)
- Container packing certificate signed by a certified packing inspector after supervised stuffing
For the carrier and the voyage
- In winter: ice capability of the vessel or feeder serving the port confirmed
- Lithium battery mark (SP188 cargo) or class 9 labels and placards
- Condition statement: new, used, damaged/defective (SP376) or for recycling (SP377)
For the importer in United States
- HTSUS classification from the broker (8507.60.0010 vs .0020 decides the Section 301 line)
- Importer of record and the licensed customs broker who will file the entry
- ISF filer named; stuffing location and consolidator sent right after packing
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 Tianjin 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 Tianjin → Duluth
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Ice or cold spell slows berthing in mid-winter | Bohai Bay, Jan–Feb | Slack between stuffing and cut-off; berthing window reconfirmed | Carrier, monitored by Anxin |
| Truck stopped without a monitored emergency number | Road leg from the port | Emergency response provider confirmed before sailing | Importer, checked by Anxin |
Questions
Tianjin → Duluth: questions we are asked
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.
Rarely. The Seaway's maximum draft in the Montreal–Lake Ontario section is 8.00 m and it closes in winter (target 5 January 2027 for the 2026 season), so containers usually leave the ocean vessel at a coastal port and continue by smaller ship, rail or truck.
The green channel Tianjin MSA announced in July 2026 is for new-energy-vehicle cargo. For battery containers we plan on the normal review and file early, because Tianjin MSA has said long reviews under the traditional model often cost firms their vessel cut-off.
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)
- 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)
- Ice Navigation in Canadian Waters, Chapter 1: Icebreaking and shipping support services (Canadian Coast Guard)
- 2026 Seaway Notice #1: opening and closing dates of the 2026 navigation season and maximum allowable drafts (Great Lakes St. Lawrence Seaway System)
- Tianjin MSA opens a green channel for new-energy-vehicle shipments (Tianjin Economic-Technological Development Area (TEDA) Administration)
- Sea ice arrives: what are the impacts? (Bohai and northern Yellow Sea, winter 2021/22) (China Meteorological Administration (from China Natural Resources News))
- 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 Tianjin
- 5ImportClearance at Duluth
Prefer chat? Chat on WhatsApp (+86 151 4514 5178)
After you send it
We check carrier acceptance for Tianjin → Duluth before any booking, and ask for missing battery documents first.
All destinations from Tianjin · United States ports
Need Tianjin → Duluth reviewed?
Share the cargo facts; we review the route in writing.
Request a Quote