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North America · sea freight from Tianjin

Shipping from Tianjin to Seattle

Tianjin to Seattle

Bohai Sea · Bohai Strait · Yellow Sea · Korea Strait · Sea of Japan · Tsugaru Strait · North Pacific · Strait of Juan de Fuca

Sea corridor illustration: Tianjin to Seattle, United States Simplified map with a curved corridor from Tianjin via Bohai Sea, Bohai Strait, Yellow Sea, Korea Strait, Sea of Japan, Tsugaru Strait, North Pacific, Strait of Juan de Fuca to Seattle. Illustration only; not a vessel track or schedule. CHINA Korea StraitTsugaru StraitNorth Pacific TianjinCHINA ORIGIN SeattleUNITED STATES TianjinBOHAI SEAYELLOW SEASHANDONGDEPARTURE AREA
  1. TianjinChina origin
  2. Bohai Sea
  3. Bohai Strait
  4. Yellow Sea
  5. Korea Strait
  6. Sea of Japan
  7. Tsugaru Strait
  8. North Pacific
  9. Strait of Juan de Fuca
  10. SeattleUnited States
Geographic corridor illustration only, not a vessel track, port-call list or sailing schedule. The loading terminal, carrier, transshipment and dates are confirmed per shipment.

Lithium batteries for Seattle go through Tianjin, with its Beijiang and Dongjiang terminals on the Bohai Bay. On the way they face a North Pacific corridor with no canal or chokepoint, and they arrive at the port of Seattle.

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

  • Tianjin Xingang export
  • Factory-supervised loading
  • ISF filer
  • Supply-chain tracing file
  • HTS code 8507.60
Ask about this route United States ports from Tianjin

Route profile

What sets Tianjin → Seattle apart

Origin port

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.

Sea corridor

Transpacific (North Pacific)

No canal or Red Sea passage, but a North Pacific crossing where winter storms have collapsed container stacks.

Container gantry cranes at a Tianjin port container terminal
A cargo ship at anchor in calm water under a clear sky

Where this route gets difficult

Where Tianjin → Seattle shipments get held up: 6 points

In the order the cargo meets them: at the loading port, at sea, at Seattle and at customs in United States.

  1. Origin port

    Packaging appraisal comes first, even with Tianjin's quicker release

    China requires use appraisal of export dangerous-goods packaging before the goods may be exported. Tianjin port's 2025 facilitation measures shortened packaging appraisal time for lithium battery exports through quick release, and Tianjin Port Group provides port services for lithium DG containers, but the appraisal certificate is still a precondition for the rest of the filing.

    What Anxin does: We check at quotation that the packaging maker has its performance appraisal and apply for the use appraisal as soon as the packing is fixed, so the certificate is in hand before the MSA filing.

  2. Origin port

    Winter ice at the Haihe mouth

    Sea ice forms every winter in the Bohai Sea, and the Haihe estuary at Tianjin is among the severe areas. In winter 2021/22 China's national marine forecast centre expected the peak ice period from mid-January to mid-February, with floating ice reaching about 5 nautical miles out in Bohai Bay. Ice and cold spells slow port operations around the Chinese New Year shipping peak.

    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.

  3. Sea corridor

    Hurricane-force winter storms, October to April

    NOAA's Ocean Prediction Center has recorded hurricane-force winds (64 knots or more) in mid-latitude North Pacific storms in every month from October to April, most often in December, with 15 to 23 such storms a season in its 2001–2004 study. These are not tropical systems, so they arrive outside typhoon season.

    What Anxin does: For October–April sailings we check blocking and bracing on stuffing photos before sealing and confirm the full DG data are on the manifest.

  4. Import country

    ISF closes 24 hours before loading in Tianjin

    The Importer Security Filing must reach CBP no later than 24 hours before the container is laden aboard the vessel abroad. CBP's liquidated damages guidelines provide for a claim per violation for late, inaccurate or incomplete filings. Two of the data elements, the container stuffing location and the consolidator, only exist once the box is packed.

    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.

  5. Import country

    Washington battery stewardship starts in 2027

    From 1 January 2027 producers selling covered batteries or battery-containing products in or into Washington must be in an approved stewardship plan through a battery stewardship organization, or they may not sell there (RCW 70A.555). From 1 July 2027 retailers may not stock portable batteries unless the producer certifies it participates.

    What Anxin does: When cargo through Seattle is sold in Washington, we flag the 2027 stewardship requirement to the importer at quotation so that retailer certification is in place in time.

  6. Import country

    CPSC eFiling for certified consumer products

    Consumer products that need a CPSC certificate have had their certificate data filed electronically at entry since 8 July 2026 (goods from a Foreign Trade Zone from 8 January 2027). A battery-powered product falls under it through the product's own rules, which the importer should settle before the goods reach Seattle.

    What Anxin does: We ask whether the goods are consumer products that need a CPSC certificate and, if so, who files it, so that the question is settled before the goods arrive.

Locator map of Seattle, United StatesSeattle
Locator map in the same projection as the corridor map; the dot marks the listed port position (47.60°N, 122.33°W).
Container ship being unloaded under red gantry cranes in Vancouver

Documents & compliance

Documents to line up for Tianjin → Seattle

Anxin reviews documents supplied by the shipper, manufacturer and importer; it does not issue test reports, safety data sheets or import certificates.

At the Tianjin end

  • Packaging use-appraisal certificate issued before the MSA cargo report is filed
  • 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
  • Transport-condition classification report where applicable

For the shipping line

  • Stuffing photos before, during and after packing, checked for blocking and bracing
  • Lithium battery mark (SP188 cargo) or class 9 labels and placards
  • Condition statement: new, used, damaged/defective (SP376) or for recycling (SP377)

At the United States end

  • ISF filer named; stuffing location and consolidator sent right after packing
  • Importer of record and the licensed customs broker who will file the entry
  • HTSUS classification from the broker (8507.60.0010 vs .0020 decides the Section 301 line)
A cordless drill with its battery pack attached
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 Tianjin 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

Risk table for Tianjin → Seattle

RiskWhereMitigationWho acts
Ice or cold spell slows berthing in mid-winterBohai Bay, Jan–FebSlack between stuffing and cut-off; berthing window reconfirmedCarrier, monitored by Anxin
Heavy-weather damage in a winter stormNorth Pacific, Oct–AprCINS stuffing checksPacking site, checked by Anxin
Late or inaccurate ISFBefore loading abroadStuffing and consolidator data sent to the ISF filer immediately after packingAnxin with the ISF filer

Questions

Common questions on the Tianjin → Seattle 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.

Weather is the main risk on this crossing: NOAA recorded hurricane-force North Pacific storms from October to April, most often in December. We tighten the packing checks for those sailings.

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

  1. 19 CFR 149.2 – Importer security filing: requirement and time of transmission (eCFR / CBP)
  2. Section 301 Modifications Determination (Federal Register notice, Sept 2024) (Office of the U.S. Trade Representative)
  3. Update: Certificates of Compliance and eFiling (U.S. Consumer Product Safety Commission)
  4. Hurricane force extratropical cyclones observed using QuikSCAT (Mariners Weather Log 49-1) (NOAA Ocean Prediction Center)
  5. Tianjin MSA opens a green channel for new-energy-vehicle shipments (Tianjin Economic-Technological Development Area (TEDA) Administration)
  6. Tianjin port 2025 cross-border trade facilitation measures (Tianjin Municipal Government (tjjz.gov.cn))
  7. Sea ice arrives: what are the impacts? (Bohai and northern Yellow Sea, winter 2021/22) (China Meteorological Administration (from China Natural Resources News))
  8. Export dangerous goods packaging inspection: service guide (Chinese) (General Administration of Customs of China (Lanzhou Customs service guide))

Next step

From enquiry to import

  1. 1EnquiryCargo, origin, destination
  2. 2Documents checkUN 38.3, SDS, packing
  3. 3BookingAfter carrier acceptance
  4. 4HandoverAt Tianjin
  5. 5ImportClearance at Seattle
Each step is confirmed in writing; an enquiry does not create a booking.

Ask about Tianjin → Seattle

Origin and destination are filled in; add the cargo facts you have.

Sending this form starts a review; it does not confirm carriage. Full enquiry form

After you send it

We check carrier acceptance for Tianjin → Seattle before any booking, and ask for missing battery documents first.

All destinations from Tianjin · United States ports

A forklift moving palletised cartons in a warehouse

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