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 Shenzhen
Shipping from Shenzhen to Cascais
Shenzhen to Cascais
South China Sea · Malacca Strait · Indian Ocean · Bab-el-Mandeb · Suez Canal · Ionian Sea · Sicily Channel · Strait of Gibraltar
- ShenzhenChina origin
- South China Sea
- Malacca Strait
- Indian Ocean
- Bab-el-Mandeb
- Suez Canal
- Ionian Sea
- Sicily Channel
- Strait of Gibraltar
- CascaisPortugal
Lithium batteries for Cascais go from factories around the Pearl River Delta through Yantian or Shekou. On the way they face a Bab el-Mandeb and Suez passage into the Mediterranean, and they arrive at the port of Cascais.
Portugal adds its SILiAmb register to the EU Battery Regulation duties. 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
- Yantian / Shekou export
- Typhoon season Jun–Oct
- SILiAmb / APA registration
- Portuguese-language safety information
- Consignee EORI
Route profile
What sets Shenzhen → Cascais apart
Portugal
Portugal's SILiAmb register at APA on top of EU duties: CE marking, the 2026 label and 2027 QR code, and ADR for the road leg.
Where this route gets difficult
5 pain points from Shenzhen to Cascais
Listed from loading in Shenzhen to import into Portugal, each with what we do about it.
- Origin port
Factory stuffing in Dongguan, loading at Yantian: avoid a second opening
Much Shenzhen battery export is stuffed inland and trucked to the terminal. In May 2026 Yantian MSA and Dongguan MSA ran a cross-regional 'one-box' pilot: four battery containers were inspected jointly at the Dongguan factory and loaded at Yantian without being opened again. It shows that the inspection record made at the factory is what matters 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
The inbound leg's emissions now count under EU ETS
Because Cascais is an EU port, container ships of 5,000 GT or more calling there fall under the EU Emissions Trading System, which covers half the emissions of the voyage from China. Lines surrendered allowances for 70% of those emissions in 2025 and must cover 100% from 2027, a cost that can reach shippers as a surcharge.
What Anxin does: We ask for the emissions surcharge to be shown as its own line in the quote, with the basis the carrier uses, so that successive quotes can be compared like for like.
- Import country
The ICS2 entry summary is due before loading in Shenzhen
For Cascais, EU security pre-filing happens at the other end of the voyage: the ICS2 entry summary must reach the system 24 hours before the container is loaded in Shenzhen. No filing means no loading, and a missing EORI number is enough to reject it.
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 Shenzhen cut-off.
- Import country
Safety documentation for stationary storage systems
Since 18 August 2024 a stationary battery energy storage system placed on the EU market must be safe in normal operation, and its technical documentation must show testing against the Annex V safety parameters, from thermal shock and short-circuit protection to over-discharge and thermal propagation. Buyers of ESS cabinets in Portugal increasingly ask for that file before delivery.
What Anxin does: For ESS cabinets and racks bound for Portugal we ask the manufacturer to confirm that the Annex V test documentation exists before booking and note the answer in the shipment file.
- Import country
Supply-chain due diligence moved to August 2027
The Battery Regulation's due diligence obligations on cobalt, lithium, nickel and natural graphite were postponed by Regulation (EU) 2025/1561 and now apply from 18 August 2027, with Commission guidelines due by 26 July 2026. Buyers in Portugal are already asking suppliers for the supply-chain data they will need.
What Anxin does: We pass the Portugal buyer's due diligence questions to the manufacturer and keep their answers with the shipment file; the policy itself remains the producer's responsibility.
Documents & compliance
Checklist for Shenzhen → Cascais
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 Shenzhen, before the box is loaded
- Confirmation from the carrier of the DG cut-off at Yantian or Shekou, rechecked in typhoon weeks
- Substance declaration covering mercury, cadmium and lead limits
- 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
- Routing (Red Sea or Cape) and any war-risk surcharge stated on the booking
- Lithium battery mark (SP188 cargo) or class 9 labels and placards
- Condition statement: new, used, damaged/defective (SP376) or for recycling (SP377)
At the Portugal end
- Instructions and safety information in the language Portugal requires
- Haulier in Portugal briefed with UN number, class 9 and tunnel code (E) for the road leg
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 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
Risks on this route and who deals with them
| 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 |
| Emissions surcharge changes between quote and sailing | EU port call | Surcharge shown as a separate line | Carrier, checked by Anxin |
| ENS not filed and the box is refused at loading | Loading port, Shenzhen | EORI and house-bill data passed to the filer at booking | Filer (carrier / forwarder) |
| Storage system delivered without Annex V test file | Buyer in Portugal | Test documentation confirmed before booking | Manufacturer |
Questions
Common questions on the Shenzhen → Cascais route
The importer's: name, registered trade name or trade mark and postal address with a contact point, on the battery or, if it is too small, on the packaging or accompanying document.
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.
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
Where these points come from
- Regulation (EU) 2025/1561 amending Regulation (EU) 2023/1542 as regards due diligence obligations (EUR-Lex / Publications Office of the EU)
- ICS2 Release 3: Prepare your business for sending goods to or via the EU by sea and inland waterways (European Commission, DG TAXUD (leaflet KP0423828ENN))
- Regulation (EU) 2023/1542 concerning batteries and waste batteries (Official Journal PDF) (EUR-Lex / Publications Office of the EU)
- Inland transport of dangerous goods (summary of Directive 2008/68/EC) (EUR-Lex)
- JMIC Update 099 to Advisory Note (Joint Maritime Information Center (via UKMTO))
- Reducing emissions from the shipping sector (European Commission (DG Climate Action))
- 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 Cascais
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After you send it
We check carrier acceptance for Shenzhen → Cascais before any booking, and ask for missing battery documents first.
All destinations from Shenzhen · Portugal ports
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