Asia – Mediterranean via Suez
Mediterranean services are the ones most likely to use Suez again (57% in September 2026), which puts the cargo back through Bab el-Mandeb, rated a SUBSTANTIAL threat.
Europe · sea freight from Dalian
Dalian to Viana do Castelo
Yellow Sea · Taiwan Strait · Malacca Strait · Indian Ocean · Bab-el-Mandeb · Suez Canal · Sicily Channel · Strait of Gibraltar
Lithium batteries for Viana do Castelo go through Dayaowan, where Liaoning's first JT/T 1543 lithium export sailed in May 2025. On the way they face a Suez corridor that Mediterranean services are using again more than any other Asia–Europe lane, and they arrive at the port of Viana do Castelo.
On the Portuguese side, APA's SILiAmb register and the EU importer checks both apply. Below are 5 route-specific points to plan for, what we do about each, and the documents to have ready before booking.
What we need to start
Route profile
Mediterranean services are the ones most likely to use Suez again (57% in September 2026), which puts the cargo back through Bab el-Mandeb, rated a SUBSTANTIAL threat.
An annual SILiAmb declaration, a licensed management entity or individual system, and EU importer duties from the declaration of conformity to the importer's address on the battery.


Where this route gets difficult
Listed from loading in Dalian to import into Portugal, each with what we do about it.
The China Meteorological Administration describes sea fog as a major marine hazard in the Yellow and Bohai Seas, with the season mainly from April to July, seriously affecting sea transport. Fog holds keep vessels at anchor, and a late vessel can push the box past its documented sailing.
What Anxin does: In the fog season we avoid tight stuffing-to-cut-off gaps and keep the filing data ready to amend if the vessel changes.
The JMIC's September 2026 update rated the northern Red Sea and Suez Canal MODERATE, with the canal operating in both directions and container lines returning selectively, and the Eastern Mediterranean LOW. The risk on this corridor is concentrated at the southern entrance of the Red Sea rather than at the canal.
What Anxin does: We check before each booking whether the service has changed routing since the last quote.
The importer in Portugal carries the check: CE marking on the battery and an EU declaration of conformity, translated into the language Portugal asks for, have both been required since 18 August 2024 for batteries entering the EU market.
What Anxin does: We ask the manufacturer in China for the declaration of conformity and a photo of the CE marking on the battery or its packaging before loading, and pass them to the Portugal importer. We check that the documents exist and match the goods; we do not assess conformity.
Sea cargo for the EU needs a complete Entry Summary Declaration under ICS2 Release 3, and for deep-sea containers it is due 24 hours before loading at the departure port. Carriers apply 'no manifest, no load', and a filing without a valid EORI number is rejected, so a data gap in Dalian leaves the box on the quay.
What Anxin does: We collect the consignee's EORI number, an HS-level goods description and the house-bill parties at booking, and make sure the party filing the ENS has them before the Dalian cut-off.
Importers must make sure batteries come with instructions and safety information in a language end-users in Portugal easily understand, as that Member State decides. Printed inserts and carton text are far easier to change before the goods are packed in China.
What Anxin does: We ask the importer which language Portugal requires and check carton and insert photos against it before loading.

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

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 Dalian export filings, the carrier booking and the Portugal 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 | Where | Mitigation | Who acts |
|---|---|---|---|
| Fog hold delays the vessel; filings need amending | Yellow Sea, Apr–Jul | Amendment-ready filing data | Anxin with the declarant |
| Declaration of conformity missing or not in the required language | Importer in Portugal | Declaration and CE photo collected before loading | Manufacturer / importer |
| ENS not filed and the box is refused at loading | Loading port, Dalian | EORI and house-bill data passed to the filer at booking | Filer (carrier / forwarder) |
Questions
It registers with APA on the SILiAmb platform, files an annual declaration by 31 March, and joins a licensed management entity or runs an APA-authorised individual system.
Often: in September 2026, 57% of Asia–Mediterranean services used the Red Sea routing. Bab el-Mandeb was rated a SUBSTANTIAL threat by the JMIC on 24 September 2026, so we confirm each service's routing before booking.
Sea ice forms every winter in the northern Yellow Sea; in 2021/22 it was forecast to reach about 15 nautical miles out there, peaking mid-January to mid-February. We plan extra time for those weeks.
References
Next step
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We check carrier acceptance for Dalian → Viana do Castelo before any booking, and ask for missing battery documents first.
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