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.
North America · sea freight from Tianjin
Shipping from Tianjin to Corpus Christi
Tianjin to Corpus Christi
Bohai Sea · Bohai Strait · Korea Strait · Eastern Pacific · Panama Canal · Caribbean Sea · Yucatán Channel · Gulf of Mexico
- TianjinChina origin
- Bohai Sea
- Bohai Strait
- Korea Strait
- Eastern Pacific
- Panama Canal
- Caribbean Sea
- Yucatán Channel
- Gulf of Mexico
- Corpus ChristiUnited States
This route runs out of Tianjin's Xingang terminals, where customs can supervise stuffing at the factory and the box goes straight to the ship on a booked slot, then follows a Panama Canal corridor whose draft limit depends on Gatun Lake; at the far end is the port of Corpus Christi.
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 5 points specific to this route, how Anxin handles each one and which documents to prepare.
What we need to start
- Bohai Bay winter ice
- Tianjin Xingang export
- HTS code 8507.60
- ISF filer
- Supply-chain tracing file
Route profile
The Tianjin → Corpus Christi 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
Where Tianjin → Corpus Christi shipments get held up: 5 points
In the order the cargo meets them: at the loading port, at sea, at Corpus Christi and at customs in United States.
- Origin port
Tianjin's supervised factory loading and port slots
Under Tianjin Customs' 'supervised factory loading, direct loading on port arrival' model, officers supervise stuffing at the factory, the declaration is lodged early through the single window, and the box enters the port in a slot booked on the customs–port platform before going straight to the ship; inspections take place in closed yards at the Beijiang and Dongjiang terminals. The gain holds only if stuffing date, slot and declared data agree.
What Anxin does: We fix the stuffing date against the vessel's DG cut-off first, then book the entry slot, and check that the declaration, the packing certificate and the container number agree before the truck leaves, so the box is not diverted to an inspection yard for a data mismatch.
- Sea corridor
Panama's draft limit depends on the lake
The Panama Canal Authority sets the maximum draft in the Neopanamax locks according to Gatun Lake levels. In September 2026 it postponed a planned cut from 14.63 m to 14.48 m that was due on 1 October (advisory A-33-2026). A lower limit means ships transiting the new locks can load less.
What Anxin does: We check the canal advisory in force when we quote for Corpus Christi and ask carriers to confirm that the booked vessel's routing and any canal surcharge will not change before sailing.
- 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 Corpus Christi 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 Tianjin, rather than leaving it for re-marking in a US warehouse.
- 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 Tianjin, 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 Tianjin, ahead of the vessel's loading window.
- Import country
AMS: the manifest CBP sees before the ship leaves Tianjin
Under 19 CFR 4.7 the carrier's cargo declaration must be in CBP's Automated Manifest System 24 hours before loading abroad. Without it, or with inaccurate data, the permit to unlade the container at Corpus Christi can be delayed or refused.
What Anxin does: We give the carrier or NVOCC the final cargo description, HS code, UN number and package count before the documentation cut-off in Tianjin, so the AMS filing and the DG manifest say the same thing.
Documents & compliance
Documents to line up for Tianjin → Corpus Christi
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 Tianjin
- Stuffing date, port-entry slot and DG cut-off at Tianjin agreed in that order
- '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
Carrier and voyage
- Canal routing and any canal-related surcharge confirmed for the booked vessel
- Condition statement: new, used, damaged/defective (SP376) or for recycling (SP377)
- SP188 cartons: US 'forbidden aboard passenger aircraft' marking or CAO label
For the importer in United States
- ISF filer named; stuffing location and consolidator sent right after packing
- HTSUS classification from the broker (8507.60.0010 vs .0020 decides the Section 301 line)
- Supply-chain tracing file for cells and lithium inputs, in case of a UFLPA request
Before you book
Match the details first
We line up UN numbers, model names and package counts across the Tianjin 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 Corpus Christi.
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
Risks on this route and who deals with them
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Box sent to the terminal inspection yard because declared data do not match | Beijiang / Dongjiang terminals | Declaration, packing certificate and container number cross-checked before trucking | Anxin |
| Draft cut reduces capacity or adds surcharges | Panama Canal | Advisory checked at quotation; carrier confirmation | Carrier, checked by Anxin |
| Late or inaccurate ISF | Before loading abroad | Stuffing and consolidator data sent to the ISF filer immediately after packing | Anxin with the ISF filer |
| Permit to unlade delayed for a late or inaccurate AMS manifest | Port of discharge | Final cargo data given to the carrier before the cut-off | Carrier / NVOCC, with data from Anxin |
Questions
Common questions on the Tianjin → Corpus Christi route
Yes, if the container moves on a public highway. The IMDG waiver in 49 CFR 171.25(d)(2) only covers cargo that stays on the ship or moves between vessels; otherwise 49 CFR 172.604 requires a monitored number answered by someone with the emergency information. Goods shipped as 'Battery powered equipment' are exempt.
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.
Tianjin Customs offers a 'supervised factory loading, direct loading on port arrival' model: stuffing is supervised at the factory, the box enters the port in a booked slot and is loaded directly. Whether a given shipment can use it depends on the customs arrangement for the exporter and the port slot; we check both when you book.
References
Official sources for this page
- 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)
- 19 CFR 4.7: inward foreign manifest; advance filing of cargo declaration (24 hours before lading) (Legal Information Institute (e-CFR text))
- 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)
- 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)
- Tianjin Customs export dangerous goods service page: supervised factory loading, direct loading on port arrival (Tianjin Customs)
- 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 Corpus Christi
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After you send it
We check carrier acceptance for Tianjin → Corpus Christi before any booking, and ask for missing battery documents first.
All destinations from Tianjin · United States ports
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