Shenzhen (Yantian / Shekou)
Pearl River Delta battery cargo, often stuffed at factories in Dongguan or Huizhou, exported through Yantian or Shekou, with a typhoon season from June to October.
Europe · sea freight from Shenzhen
Shenzhen to Olhão
South China Sea · Malacca Strait · Indian Ocean · Bab-el-Mandeb · Suez Canal · Ionian Sea · Sicily Channel · Strait of Gibraltar
From Shenzhen to Olhão, cargo moves from Dongguan and Shenzhen factories via Yantian, crosses a Suez corridor that Mediterranean services are using again more than any other Asia–Europe lane, and is discharged at the port of Olhão.
On the Portuguese side, APA's SILiAmb register and the EU importer checks both apply. 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
Route profile
Pearl River Delta battery cargo, often stuffed at factories in Dongguan or Huizhou, exported through Yantian or Shekou, with a typhoon season from June to October.
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
They run from the Shenzhen terminal through the voyage to Olhão and the Portugal import file.
Much of Shenzhen's battery cargo is made in Dongguan, home to more than 500 battery firms. In September 2026 Dongguan Customs and Dongguan MSA began sharing dangerous-goods packaging certificate data, described as a first in China, and committed to joint action against concealed and false declarations. The one-box route to Yantian, which had moved 409 containers by then, rests on that same record.
What Anxin does: We compare the packaging certificate with the MSA cargo report (UN number, packaging code, number of packages) before either goes in, so the shared data shows no gap.
Asia–Mediterranean services used the Red Sea 57% of the time in September 2026 according to Sea-Intelligence, compared with 27% for North Europe, so a box for Olhão most probably goes via Suez and through Bab el-Mandeb. The JMIC rated that strait SUBSTANTIAL on 24 September 2026; the Houthis call their blockade selective and now hold Perim Island in the channel.
What Anxin does: We ask the carrier which routing its service to Olhão uses and name it on the quote, together with any war-risk or emergency surcharge.
Importers placing batteries on the market in Portugal register with the Portuguese Environment Agency (APA) on SILiAmb and submit an annual declaration by 31 March that includes batteries built into other products. They meet their responsibility through a licensed management entity such as Electrão, or through an individual system authorised by APA.
What Anxin does: We ask the Portuguese importer for its APA registration and management entity before booking, and list battery weights separately so its declaration is easy.
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 Shenzhen 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 Shenzhen cut-off.
An importer has to ensure that batteries are accompanied by instructions and safety information in a language that end-users in Portugal can easily understand, as the Member State determines. Inserts and carton print are much simpler to adjust before packing 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.

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 Shenzhen filings, the carrier booking and the Portugal 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 | Where | Mitigation | Who acts |
|---|---|---|---|
| Packaging certificate and MSA filing disagree; shipment flagged | Dongguan → Yantian | Line-by-line comparison before filing | Anxin with the declarant |
| Security incident near Bab el-Mandeb changes the routing or adds surcharges | Southern Red Sea | Routing and surcharges stated in writing before booking | Carrier, checked by Anxin |
| Importer not registered on SILiAmb | Importer in Portugal | Registration confirmed before booking | Importer |
| 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) |
Questions
24 hours before the container is loaded in China, not before it reaches Olhão. Without it carriers do not load the box, and a filing without an EORI number is rejected.
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.
Since September 2026 Dongguan Customs and Dongguan MSA share dangerous-goods packaging certificate data and act jointly against false declarations, so the packaging certificate and the MSA filing should match exactly.
References
Next step
Prefer chat? Chat on WhatsApp (+86 151 4514 5178)
We check carrier acceptance for Shenzhen → Olhão before any booking, and ask for missing battery documents first.
All destinations from Shenzhen · Portugal ports

Share the cargo facts; we review the route in writing.
Request a Quote