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Mulia Charcoal

Logistics · Dangerous goods

UN 1361: is coconut charcoal dangerous goods?

Yes. Coconut shell charcoal ships as UN 1361 — IMDG Code UN 1361 Class 4.2 (spontaneous combustion), Packing Group III. This page explains what that classification is and what it means for your shipment.

Authored by
Andri Dharmawan
Founder & Director
Fact-checked by
Teguh Pranomo
Quality Control Manager
Last updated
Reading time
4 min

This page sits under the Mulia Charcoal Logistics pillar. UN 1361 is the dangerous-goods classification for coconut charcoal by sea — a timeless definition. For what changed under the 2026 rules, see the regulation page; here we define the cargo itself. Logistics overview

Classification at a glance

The dangerous-goods identity of coconut shell charcoal.

UN number
UN 1361
IMDG class
Class 4.2 (spontaneous combustion)
Proper shipping name
CARBON, animal or vegetable origin
Packing group
III
Governing code
IMDG Code (sea transport)
Self-Heating Test
Supporting evidence, not an exemption

What UN 1361 is

UN 1361 is the United Nations dangerous-goods identifier for "Carbon, animal or vegetable origin" — the entry that covers coconut shell charcoal, wood charcoal, and similar carbonized organic materials shipped by sea. Cargo declared as UN 1361 is IMDG Code UN 1361 Class 4.2 (spontaneous combustion), and the IMDG Code governs how it is packed, marked, documented, and stowed.

UN 1361 in the glossary

Cargo details

The dangerous-goods data your carrier and broker need, in one place.

Cargo details
Property Value
Substance Coconut shell charcoal briquettes
UN number UN 1361
IMDG class Class 4.2 (spontaneous combustion)
Packing group III
Proper shipping name CARBON, animal or vegetable origin
Flash point Not applicable (self-heating solid)
HS code (international) 4402.20

Self-heating, fire risk — and how it is managed

Class 4.2 means the material can self-heat: it may warm in contact with air and, in the wrong conditions, ignite without an external spark. Contained-cargo self-heating fires have occurred days after loading, which is why the classification exists and why carriers take it seriously.

The answer is prevention. The Special Provision 978 controls — weathering, a packing-temperature limit, and container headspace — are designed to stop self-heating before it starts, and incidents are rare. Honesty matters here: self-heating fire is inherent vice and is not covered by marine cargo insurance. You cannot insure your way out of it — you prevent it, with the controls and a documented compliance record.

The SP 978 controls in detail What insurance does and does not cover

The Self-Heating Test, after 2026

The Self-Heating Test (UN Test N.4) measures whether a substance self-heats. Since IMDG Amendment 42-24 it no longer exempts UN 1361 from dangerous-goods carriage — a passing result is supporting hazard evidence only, a point the regulation page explains in full.

The SHT in the document pack Testing depth & certifications

Why some lines refuse charcoal

Because it is Class 4.2 self-heating cargo, charcoal needs a carrier that accepts declared dangerous goods and the factory audits that go with it. Some major lines have stepped back from charcoal, which is why we book with carriers that do.

Carriers that ship charcoal

Every export carton and container carries the UN 1361, Class 4.2 dangerous-goods markings and placards. Dangerous-goods markings on the packaging

Can I just ship charcoal as non-dangerous goods and save the surcharge?

The honest counter-argument is commercial: declaring UN 1361 adds dangerous-goods surcharges and narrows the carrier list, so a buyer naturally asks whether a non-DG booking is possible. It is a fair question — before 2026, a passing Self-Heating Test could test the cargo out of dangerous-goods carriage, and some suppliers still quote freight on that basis.

That route no longer exists. Since 1 January 2026, IMDG Amendment 42-24 (Res. MSC.556(108)) removed the test-out for UN 1361: a passing SHT is now supporting evidence, not an exemption. A non-DG quote today is a misdeclaration, and the exposure lands on the importer — carrier blacklisting, port-state detention, and, because self-heating fire is inherent vice, no marine-cargo cover if the container ignites. Packing Group III is the lowest severity in Class 4.2, and the SP 978 controls keep incidents rare, so the compliant path costs a surcharge, not your cargo. We ship declared, every time.

Entry formalities by destination

UN 1361 sets how the cargo is classified and declared for the sea voyage; the customs duty, taxes and entry steps then depend on where it lands. These guides cover the import mechanics market by market.

Frequently asked questions

Is charcoal dangerous goods?
Yes. Coconut shell charcoal is shipped as UN 1361, IMDG Code UN 1361 Class 4.2 (spontaneous combustion), Packing Group III. Since 1 January 2026 it must be carried as declared dangerous goods — there is no compliant non-DG route by sea.
What is UN 1361 / Class 4.2?
UN 1361 is the dangerous-goods entry for "Carbon, animal or vegetable origin". Class 4.2 is the hazard class for substances liable to spontaneous combustion — materials that can self-heat in air. Coconut charcoal is assigned Packing Group III, the lowest severity within the class.
What is the Self-Heating Test and what does it test?
The Self-Heating Test (UN Test N.4) holds a sample at an elevated temperature in a circulating-air oven and observes whether it self-heats. Since IMDG Amendment 42-24 a passing result no longer exempts the cargo from dangerous-goods rules — it is supporting hazard evidence only.
Will my charcoal catch fire in the container?
It is very unlikely when the cargo is handled correctly. The risk is real — Class 4.2 cargo can self-heat — but the SP 978 controls (weathering, a packing-temperature limit, and container headspace) are designed to prevent exactly that, and incidents are rare. Self-heating fire is not insurable, so prevention and a documented compliance record are the real safeguard.
Why do some shipping lines refuse charcoal or charge more?
Because it is Class 4.2 self-heating dangerous goods. Some lines have stopped carrying it; those that do require declared DG booking and, often, a factory audit, and apply dangerous-goods surcharges. We book with carriers that accept it.

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