China Lithium Battery Sea Export Documents: 4 Files EV and Hybrid Buyers Must Prepare
Electric and hybrid passenger cars shipped from China by sea need more than a commercial invoice. Carriers check four document sets before they release space: MSDS, UN38.3 test summary, sea transport appraisal, and China Customs dangerous-goods packaging certificates. Here is what each file is, when whole-vehicle vs removed-battery shipments differ, and how to avoid booking refusal.
Last updated: October 27, 2026
If you buy diesel HOWO trucks, most of this guide is background only. If you buy electric cars, pickups or vans — or any order that ships a lithium pack — these China-origin sea documents are mandatory in practice. Many overseas buyers hear “危包证” once and assume it is a single stamp. It is not. This article explains the four sets in plain English, with a comparison table, pitfalls, and a pre-booking checklist.
Why carriers check documents before they give you space
Lithium-ion and lithium-metal batteries, and vehicles powered by them, are handled as Class 9 dangerous goods under the IMDG Code. Shipping lines and their DG desks do not only look at the packing list at the terminal. They run a document review at booking.
If Section 14 on the SDS is outdated, the UN number does not match the physical cargo, the transport appraisal has expired, or Customs packaging certificates are missing when required, the usual result is: no booking confirmation, rolled sailings, or a last-minute switch to a more expensive arrangement. Fixing papers after the factory has already packed the cars costs more than checking them when you place the order.
Related reading (EU market access, not the same as sea DG paperwork): EU Digital Battery Passport 2027 guide.
UN numbers you will see on EV and hybrid shipments
| UN number | Typical cargo |
|---|---|
| UN3480 | Lithium-ion cells or batteries shipped alone (including power banks) |
| UN3481 | Lithium-ion batteries in or with equipment |
| UN3090 | Lithium-metal cells or batteries alone |
| UN3091 | Lithium-metal batteries in or with equipment |
| UN3556 | Lithium-ion powered vehicles (2026 vehicle split; previously often handled under older vehicle entries such as UN3171) |
| UN3557 | Lithium-metal powered vehicles |
| UN3558 | Sodium-ion powered vehicles |
Special Provision 188 (SP188) can simplify packaging and declaration for small batteries within published energy / lithium-content limits, but it does not waive UN38.3 testing or honest declaration. Thresholds commonly cited for SP188:
| Chemistry | Cell limit | Battery limit |
|---|---|---|
| Lithium-ion | ≤ 20 Wh | ≤ 100 Wh |
| Lithium-metal | ≤ 1 g lithium | ≤ 2 g lithium |
Passenger EV and PHEV traction packs are far above these limits. SP188 mainly matters for small spare parts, accessories, or consumer cells in the same container — not for the drive battery of a full-size electric car.
The four document sets (what buyers must ask for)
Chinese exporters and freight forwarders usually speak of “four sets.” Overseas purchase orders should name them explicitly so the factory and forwarder cannot assume “we always ship cars as general cargo.”
| # | Document | Purpose | Who typically issues / holds it | Validity / timing notes |
|---|---|---|---|---|
| 1 | MSDS / SDS | Carrier checks Section 14: UN number, proper shipping name, packing group / transport class | Battery or vehicle manufacturer (or their authorised SDS provider) | Must reflect IMDG Amendment 42-24, mandatory from 1 January 2026 (replaces 41-22). Old 41-22 Section 14 often fails booking review. |
| 2 | UN38.3 Test Summary | Proves the cell/battery design passed the eight UN Manual of Tests and Criteria tests (altitude, thermal, vibration, shock, external short circuit, impact, overcharge, forced discharge) | Manufacturer or distributor; many carriers want it at booking (PDF, URL or QR) | Bound to the exact model. Cell chemistry, capacity or protection-circuit changes need retest. No “forever free pass” after a redesign. |
| 3 | Cargo transport condition appraisal / sea transport appraisal (货物运输条件鉴定书) | Independent lab-style appraisal that the goods are fit for the stated sea transport conditions | Accredited appraisal body in China; held by shipper / exporter | Typically calendar-year validity; expires 31 December each year. Air appraisal ≠ sea appraisal. Renew before year-end peak season. |
| 4 | China Customs dangerous-goods packaging certificates (危包证) | Proves packaging performance and that the packed export lot was inspected for DG use | Two papers: (a) packaging performance inspection result — packaging maker → origin Customs; (b) use appraisal for packing DG for export — exporter → origin Customs, per shipment after inspection | Filed via Single Window + local Customs inspection. See whole-vehicle exception below. |
Plain English: what “危包证” really is
Buyers often receive a WeChat message: “need 危包证.” In China Customs practice this label usually covers two documents:
- Performance inspection result for the packaging — shows the drum, box or other packaging type passed the required performance tests. Obtained by the packaging manufacturer at the origin Customs.
- Use appraisal for packing dangerous goods for export — shows this export lot was packed and inspected for DG export. Obtained by the exporter, typically per shipment, after inspection.
Both are processed through China’s Single Window with local Customs. Asking only for “one 危包证 PDF” without knowing which of the two you hold is a common reason bookings stall.
Whole vehicle (battery fixed) vs battery removed
This is the distinction that matters most for electric and hybrid passenger cars.
Battery remains installed in the vehicle
- Classification is generally UN3556 for lithium-ion powered vehicles (or UN3557 / UN3558 for the other chemistries above).
- You still need current MSDS, UN38.3 coverage for the battery system shipped, sea transport appraisal, and carrier DG acceptance.
- Under IMDG packing instruction P912, UN3556 packaging does not need design-type testing under 4.1.1.3. China MSA Q&A (Zhejiang MSA, March 2026; Ningbo MSA via trade Q&A) states 危包证 is typically not required for UN3556 vehicles. Still reconfirm with the load-port MSA and booking carrier. If the vehicle is fully enclosed and hard to identify, apply required Class 9 marks/labels.
Battery removed and shipped as cargo
- Classify and book as UN3480 (or the matching loose-battery entry).
- Expect the full packaging path, including the Customs use appraisal and a proper battery DG booking.
- SoC limits and packaging marks become stricter in practice.
Hybrid (PHEV) cars still carry a high-voltage lithium pack. Do not assume “hybrid = ordinary used car paperwork only.” For sea DG purposes, treat them like other battery-powered vehicles unless your forwarder documents a different UN entry for that exact model.
Common pitfalls that block booking
- Misdeclaration — calling battery packs or EVs “auto parts” or “electronics” while the physical cargo is a Class 9 battery or powered vehicle. Customs, maritime authorities and carriers cross-check.
- Papers vs production mismatch — UN38.3 or SDS prepared on a sample pack that differs from the cars actually loaded (capacity, BMS, cell supplier).
- Stale UN38.3 after a 2026 redesign — reports do not “expire by calendar” if the design is unchanged, but chemistry, capacity or structure changes void the old summary.
- SoC too high — for UN3480 sea shipments, ≤30% state of charge is a common requirement; many carriers apply 30% even for batteries shipped with equipment. Practical tip from trade guidance: plan ≤30% unless the line confirms a different limit in writing.
- Year-end appraisal cliff — sea transport appraisals that expire on 31 December are a frequent December/January failure mode. Renew before peak.
- “DDP / tax inclusive / double clear” confusion — destination tax or clearance packages do not skip origin carrier review, maritime DG declaration, or China export packaging certificates.
Classification reports and 2027 mark changes
Customs classification-style reports may have no hard Customs expiry, but international DG rules update roughly every two years. Do not reuse stale reports blindly when IMDG amendments change Section 14 expectations.
Looking ahead:
- After 31 December 2026, the older lithium battery mark that included an emergency telephone number becomes obsolete for the transition described in trade guidance.
- From 1 January 2027, expect the new mark without the phone number, with the UN number (sea and air contexts in the source briefing).
- IMDG Amendment 43-26: voluntary in 2027, mandatory in 2028 in the source timeline; new UN entries such as UN3563 / UN3564 (and related) for batteries in cargo transport units are flagged for that cycle. [to confirm against the official IMDG text your forwarder uses]
- Sea transport appraisal still expires on 31 December each year — the mark change does not freeze appraisal dates.
Pre-booking checklist for EV / hybrid buyers
Use this with your Chinese supplier and forwarder before you confirm vessel space:
- [ ] Correct UN number for this shipment mode (whole vehicle UN3556 vs loose battery UN3480, etc.)
- [ ] MSDS/SDS with Section 14 aligned to IMDG 42-24 (from 1 Jan 2026)
- [ ] UN38.3 test summary for the exact battery / vehicle battery system model
- [ ] Sea cargo transport condition appraisal valid through sailing date (watch 31 Dec expiry)
- [ ] If packaging rules apply: both Customs packaging papers (performance + use), filed via Single Window
- [ ] Confirm with load-port MSA / carrier that UN3556 booking does not need 危包证 for this sailing (default: not required under P912; port may still ask)
- [ ] Planned SoC ≤30% unless the carrier states otherwise in writing
- [ ] Marks / labels plan (including 2027 mark transition if you ship after 31 Dec 2026)
- [ ] Commercial documents (invoice, packing list, VIN list) match the DG papers
For destination conformity certificates in African markets (different topic from lithium DG): see Africa COC / SONCAP / PVoC guide.
FAQ
Do electric and hybrid cars from China need special sea-export documents?
Yes. Lithium batteries and battery-powered vehicles are Class 9 dangerous goods under the IMDG Code. Before a carrier releases booking space, they usually review MSDS (Section 14), a UN38.3 test summary, a sea cargo transport condition appraisal, and—when packaging rules apply—China Customs dangerous-goods packaging certificates. Missing or mismatched papers often block booking, not only loading.
What is the “危包证” overseas buyers hear about?
In China trade practice, 危包证 usually means two Customs packaging documents, not one: (1) a performance inspection result for the packaging itself, obtained by the packaging maker at origin Customs; and (2) a use appraisal for packing dangerous goods for export, obtained by the exporter per shipment after inspection. Both are typically filed through China’s Single Window with local Customs inspection.
If the battery stays fixed in the car, do I still need every document?
Whole-vehicle lithium-ion powered vehicles are generally UN3556 from 1 January 2026 (IMDG 42-24), not loose UN3480. Under packing instruction P912, packaging does not need IMDG 4.1.1.3 design-type testing. China MSA Q&A (e.g. Zhejiang Maritime Safety Administration, March 2026) states that such UN3556 cargo typically does not need a dangerous-goods packaging certificate (危包证). You still need MSDS, UN38.3 for the battery system, sea transport appraisal where required, carrier DG review, and maritime declaration. If the vehicle is fully boxed so it is not readily identifiable, apply the required Class 9 marks/labels. If the battery is removed and shipped alone, treat it as UN3480 with full packaging paperwork. Always reconfirm with the load-port MSA and your carrier for that sailing.
Does SP188 mean small batteries skip all paperwork?
No. Special Provision 188 can simplify packaging and declaration for small lithium batteries within Wh/g limits (Li-ion cell ≤20 Wh, battery ≤100 Wh; Li-metal cell ≤1 g lithium, battery ≤2 g), with UN38.3 and short-circuit protection. It may waive the Customs use appraisal, but you still need the lithium battery mark and should keep transport-condition documents. It does not waive UN38.3 or honest DG declaration.
Why do carriers reject bookings that still have an MSDS?
Often because Section 14 still cites IMDG Amendment 41-22. Amendment 42-24 became mandatory from 1 January 2026. An old Section 14 frequently fails carrier document review even if the rest of the SDS looks fine. Ask for an SDS whose transport section matches 42-24 and the correct UN number for your cargo.
Does “DDP / tax-inclusive / double clear” skip China export DG docs?
No. Destination clearance or inclusive pricing does not replace origin carrier document review, maritime dangerous-goods declaration, or China export Customs packaging documents. Those checks happen before the container leaves China.
How we help
We export vehicles and equipment from Jinan, China, to customers in more than 60 countries. For electric and hybrid passenger cars and other battery-related cargo, we coordinate with the factory and freight forwarder so the MSDS, UN38.3 summary, sea transport appraisal and Customs packaging certificates match the units you ordered before the carrier document check — not after the cars are already at the terminal.
Browse cars, pickups and vans, read our EU battery passport 2027 guide if you sell into Europe, or send an inquiry / WhatsApp us for a quote and shipping document checklist for your destination.
Sources
- WeChat trade briefing (Chinese): 《锂电池海运出货：4 套文件没备齐，柜子上不了船》 — https://mp.weixin.qq.com/s/3xSVdn2-nxR_gLKPWgJqYg (facts extracted 27 Oct 2026 Asia/Shanghai; competitor logistics promotion omitted)
- Related site guide: EU Digital Battery Passport 2027 (market access vs sea DG paperwork)