Guangzhou (Nansha)
Pearl River Delta battery cargo through Nansha, where a September 2026 agreement lets Dongguan-inspected containers load without a second MSA check, and where typhoon season runs June to October.
South & Southeast Asia · sea freight from Guangzhou
Shipping from Guangzhou to Kolkata
Guangzhou to Kolkata
South China Sea · Malacca Strait · Andaman Sea · Bay of Bengal
- GuangzhouChina origin
- South China Sea
- Malacca Strait
- Andaman Sea
- Bay of Bengal
- KolkataIndia
This route runs through Guangzhou's Nansha terminals, which since September 2026 accept Dongguan-inspected battery boxes without a second check, then follows the Malacca Strait and then the Indian Ocean; at the far end is the port of Kolkata.
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
- Dongguan–Nansha one-box
- Typhoon season Jun–Oct
- Advance Bill of Entry
- BIS CRS
- CPCB EPR
Route profile
How Guangzhou → Kolkata differs from other lanes
India
India checks BIS registrations online, treats importers as EPR producers and wants the Bill of Entry early.
Where this route gets difficult
5 points to plan for on the Guangzhou → Kolkata route
Listed from loading in Guangzhou to import into India, each with what we do about it.
- Origin port
Typhoon weeks at the Pearl River mouth
The Hong Kong Observatory puts the region's tropical cyclone season from June to October, busiest July to September. Nansha sits at the mouth of the Pearl River; a closed gate or a changed vessel means the DG filings and the packing certificate have to follow the box to a new sailing.
What Anxin does: From June to October we leave slack between stuffing and the DG cut-off at Nansha and refile quickly if the vessel changes.
- Origin port
A recommended 25% charge for ESS from Nansha
Nansha MSA told a July 2024 meeting on energy-storage carriage that ESS batteries should travel at roughly 25% state of charge, with accidental activation prevented. It is advice, not a binding rule, yet it is the number the local authority has put on the record.
What Anxin does: For ESS cargo leaving Nansha we ask the manufacturer to state the shipping state of charge and the anti-activation measures in writing, and put both in the documents the carrier sees.
- 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 Kolkata, 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 Kolkata relays in Colombo or elsewhere, and check that the DG acceptance covers the feeder leg too.
- Import country
A long river approach to Kolkata
Kolkata Dock System lies about 223 km from the pilot station, 148 km of it up the river, and the port publishes monthly draft forecasts; lock gates also limit ship size. Containers for Kolkata often come on smaller vessels, and draft can change the plan.
What Anxin does: We check the carrier's routing for Kolkata against the current draft forecast and tell the consignee if a relay is likely.
- Import country
The BIS R-number goes on the Bill of Entry
India requires lithium-ion cells and batteries to be registered under BIS's CRS (IS 16046 Part 2) before import. The registration number is declared in the Bill of Entry, so a missing or wrong number stops the container at Kolkata.
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
Documents to line up for Guangzhou → Kolkata
Anxin reviews documents supplied by the shipper, manufacturer and importer; it does not issue test reports, safety data sheets or import certificates.
Before loading in Guangzhou
- For ESS: written shipping state of charge and anti-activation measures from the manufacturer
- 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
- Transport-condition classification report where applicable
- Load plan showing even weight distribution (no more than 60% of the cargo weight in either half of the container length)
For the carrier and the voyage
- Carrier's revised arrival reconfirmed in the cyclone season before booking onward transport
- Relay port and feeder DG acceptance confirmed for Indian destinations
- UN 38.3 test summary for every cell and battery type
For import into India
- Importer's CPCB producer registration
- Documents with the broker in time for the advance Bill of Entry
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 Guangzhou export filings, the carrier booking and the India 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
What could go wrong from Guangzhou to Kolkata, and who acts
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Typhoon closure after filings are made | Nansha, Jun–Oct | Slack in stuffing date; prompt refiling | Anxin with the declarant |
Questions
Questions about shipping from Guangzhou to Kolkata
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.
Nansha MSA has recommended around 25% for ESS batteries and measures against accidental activation. Treat it as the local authority's recommendation; the carrier's own acceptance conditions also apply.
References
Regulations and port sources cited
- 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))
- 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)
- Draft forecast for Kolkata Dock System, March 2026 (Syama Prasad Mookerjee Port, Kolkata)
- 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)
- Nansha MSA meeting on the safe carriage of energy-storage batteries (Guangzhou Nansha District Government)
- 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 Guangzhou
- 5ImportClearance at Kolkata
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After you send it
We check carrier acceptance for Guangzhou → Kolkata before any booking, and ask for missing battery documents first.
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