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.
South & Southeast Asia · sea freight from Shenzhen
Shenzhen to Vizhinjam
South China Sea · Malacca Strait · Andaman Sea · Indian Ocean
Lithium batteries for Vizhinjam go from Dongguan and Shenzhen factories via Yantian, where the one-box route had moved 409 battery containers by September 2026. On the way they face the Malacca Strait and then the Indian Ocean, and they arrive at the port of Vizhinjam.
India adds BIS registration for lithium cells and batteries, checked online by customs. 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.
After the Malacca Strait comes the Indian Ocean, where the south-west monsoon and two cyclone seasons decide the pace.


Where this route gets difficult
Loading port first, then the sea leg, then Vizhinjam and the India market.
Dongguan, home to more than 500 battery companies, supplies much of the cargo leaving Shenzhen. Since September 2026 Dongguan Customs and Dongguan MSA share dangerous-goods packaging certificate data, described as a first in China, and act jointly against concealed and false declarations; the one-box route to Yantian, 409 containers by then, relies on the 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.
Colombo handled a record 8.29 million TEU in 2025, about 81% of it transhipment, and roughly 45% of that transhipment is linked to Indian trade. A container for Vizhinjam may well be discharged in Colombo and reloaded onto a feeder, so the DG declaration and the booking have to cover both vessels.
What Anxin does: We ask the carrier at booking whether the service to Vizhinjam relays in Colombo or elsewhere, and check that the DG acceptance covers the feeder leg too.
Indian customs expect the Bill of Entry by the end of the day before the vessel arrives at Vizhinjam; it can be filed up to 30 days ahead, and late filing attracts charges. The BIS and DG details must be ready by then.
What Anxin does: We send the importer's broker the invoice, packing list and BIS details as soon as the ship sails from Shenzhen, so the Bill of Entry can be filed early.
The India Meteorological Department dates the south-west monsoon's arrival over Kerala to around 1 June (4 June in 2026), after which it moves north and covers the whole country by about mid-July. From then until the season ends, arrivals at Vizhinjam meet monsoon rain on the quay and on the roads inland.
What Anxin does: For monsoon-season arrivals at Vizhinjam we ask for cartons with moisture protection and tell the consignee to plan unstuffing under cover.
Lithium-ion cells and batteries are under BIS's Compulsory Registration Scheme (IS 16046 Part 2). The manufacturer needs its own registration, and the R-number goes into the Bill of Entry at Vizhinjam; batteries without it cannot be cleared.
What Anxin does: Before booking we ask for the manufacturer's BIS R-number and check that it covers the models and factory named in the shipment.

Documents & compliance
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.

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 India 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 |
| Late Bill of Entry charges | Indian port of discharge | Documents sent at sailing | Importer's broker |
Questions
Yes. They fall under BIS's Compulsory Registration Scheme (IS 16046 Part 2), and the R-number is declared in the Bill of Entry.
The India Meteorological Department describes two North Indian Ocean seasons, April–May and October–December, the latter being the main one.
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
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We check carrier acceptance for Shenzhen → Vizhinjam before any booking, and ask for missing battery documents first.
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