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
Shipping from Shenzhen to Chennai
Shenzhen to Chennai
South China Sea · Malacca Strait · Andaman Sea · Bay of Bengal
- ShenzhenChina origin
- South China Sea
- Malacca Strait
- Andaman Sea
- Bay of Bengal
- ChennaiIndia
Lithium batteries for Chennai go from factories around the Pearl River Delta through Yantian or Shekou. On the way they face the Malacca Strait and then the Indian Ocean, and they arrive at the port of Chennai.
India adds BIS registration for lithium cells and batteries, checked online by customs. 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
- Typhoon season Jun–Oct
- Yantian / Shekou export
- BIS CRS
- CPCB EPR
- Advance Bill of Entry
Route profile
What sets Shenzhen → Chennai apart
Asia – Indian Ocean
An Indian Ocean route: rough south-west monsoon seas from June to September and cyclone windows in April-May and October-December.
Where this route gets difficult
What to watch between Shenzhen and Chennai: 5 points
They run from the Shenzhen terminal through the voyage to Chennai and the India import file.
- Origin port
Packaging certificates are now visible to both customs and MSA
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.
- Origin port
Typhoon season squeezes Shenzhen cut-offs
The Hong Kong Observatory puts the regional tropical cyclone season from June to October, busiest July to September. DG containers need their MSA filings approved and a signed packing certificate before loading, so a closed gate or a rolled vessel in typhoon weeks can push the whole document chain to a new sailing.
What Anxin does: From June to October we build slack into the stuffing date, confirm the DG cut-off with the carrier the week before loading, and resubmit filings promptly if the vessel changes.
- Sea corridor
A Colombo relay adds a second vessel to the booking
Colombo is the main transhipment hub for Indian cargo: 8.29 million TEU in 2025, about 81% transhipment, around 45% of it India-linked. For Chennai, a relay there means a second vessel whose DG acceptance matters as much as the first.
What Anxin does: We ask the carrier at booking whether the service to Chennai relays in Colombo or elsewhere, and check that the DG acceptance covers the feeder leg too.
- Import country
The north-east monsoon in Tamil Nadu, October to December
The India Meteorological Department describes October to December as Tamil Nadu's main rainy season, with onset around 20 October and nearly half the state's annual rainfall. Heavy rain at Chennai slows cargo work and inland trucking.
What Anxin does: For arrivals at Chennai in the north-east monsoon we tell the consignee to expect rain delays and keep documents filed early.
- Import country
crsbis.in decides: manufacturer, model and factory must match
Indian customs now verify BIS registrations online (CBIC Instruction 27/2025). If the manufacturer, model or factory location on the documents for Chennai differs from crsbis.in, or the registration is deferred or cancelled, the goods are not cleared.
What Anxin does: We compare the model numbers and factory address on the invoice with the registration shown on crsbis.in before the goods leave Shenzhen.
Documents & compliance
What to have ready: Shenzhen to Chennai
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.
At the Shenzhen end
- Confirmation from the carrier of the DG cut-off at Yantian or Shekou, rechecked in typhoon weeks
- BIS R-number checked against model and factory on crsbis.in
- 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
- Carrier's revised arrival reconfirmed in the cyclone season before booking onward transport
- Lithium battery mark (SP188 cargo) or class 9 labels and placards
- Condition statement: new, used, damaged/defective (SP376) or for recycling (SP377)
For import into India
- Importer's CPCB producer registration
- Documents with the broker in time for the advance Bill of Entry
Before you book
Send the file once, complete
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 table for Shenzhen → Chennai
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Typhoon closes terminals or delays the vessel after filings are made | Yantian / Shekou, Jun–Oct | Slack in stuffing date; refile quickly on vessel change | Anxin with the declarant |
| Packaging certificate and MSA filing disagree; shipment flagged | Dongguan → Yantian | Line-by-line comparison before filing | Anxin with the declarant |
| Clearance refused for a registration mismatch | Indian port of discharge | Registration checked before shipment | Manufacturer and importer |
Questions
Shenzhen → Chennai: questions we are asked
Yes. They fall under BIS's Compulsory Registration Scheme (IS 16046 Part 2), and the R-number is declared in the Bill of Entry.
Often, yes. Colombo is the main relay for Indian cargo, so we ask the carrier where the service relays and check that the feeder accepts the batteries too.
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
Official sources for this page
- BIS Compulsory Registration Scheme: sealed secondary lithium-ion cells and batteries, IS 16046 (Part 2) (Bureau of Indian Standards CRS portal)
- Circular 08/2021-Customs: clarifications on legislative changes in section 46 (CBIC (TaxGuru copy))
- CBIC Instruction 27/2025-Customs: validation of BIS registration at time of clearance (CBIC (copy via CAalley))
- Frequently asked questions under Battery Waste Management Rules, 2022 (Central Pollution Control Board)
- Customs Act 1962, section 46 (entry of goods on importation) (India Code)
- Report on Northeast Monsoon 2025 (Regional Meteorological Centre Chennai) (India Meteorological Department)
- Frequently asked questions on tropical cyclones (India Meteorological Department, RSMC New Delhi)
- Port of Colombo records historic high of 8.29 million TEUs in 2025 (Sri Lanka Ports Authority)
- 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 Chennai
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After you send it
We check carrier acceptance for Shenzhen → Chennai before any booking, and ask for missing battery documents first.
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