Industrial pellets qualified against the Korean buyer’s actual specification.
South Korea’s current wood-pellet framework uses industrial grades I1 / I2 / I3. We position SIB PELLET around I2/I3 qualification, fresh laboratory evidence and utility-specific acceptance — not around an unsupported certification label.
I2 and I3 — the limits buyers will recognize.
Summary of the industrial table available through Korea’s National Law Information Center. Buyer or generator specifications may be tighter.
| Parameter | I2 | I3 | SIB PELLET current commercial reference* |
|---|---|---|---|
| Diameter | D06 / D08 / D10 | D06 / D08 / D10 / D12 | 6–8 mm |
| Bulk density, received | ≥550 kg/m³ | ≥500 kg/m³ | 600–750 kg/m³ |
| Moisture, received | ≤10% | ≤10% | ≤10% |
| Ash, dry basis | ≤3.0% | ≤5.0% | ≤0.7% |
| Net calorific value, received | ≥16.5 MJ/kg | ≥16.5 MJ/kg | ≥4.6 kWh/kg (≈16.56 MJ/kg) |
| Nitrogen, dry basis | ≤0.7% | ≤0.7% | Fresh batch verification required |
| Sulfur, dry basis | ≤0.05% | ≤0.05% | Fresh batch verification required |
| Chlorine, dry basis | ≤0.05% | ≤0.1% | Fresh batch verification required |
| Durability, received | ≥96.5% | ≥95.0% | ≥98% |
| Fines, received | ≤5.0% | ≤6.0% | Confirm in current inspection plan |
*Commercial reference values describe the current SIB PELLET offer and are not, by themselves, an I2/I3 conformity statement. Basis, methods, sampling and contractual limits must be aligned with the buyer.
Spec → gap check → fresh test → contract acceptance.
Receive buyer spec
Plant, trader or tender specification including test methods and limits.
Map I2/I3 fit
Compare current commercial indicators and identify every unverified parameter.
Independent testing
Agree sampling point, laboratory, sulfur/chlorine/nitrogen, trace elements, fines and other required tests.
Acceptance matrix
Put limits, tolerances, rejection logic and document flow into the contract.
Legality evidence belongs in the qualification pack.
Korea’s forest-product import system describes legality evidence such as harvest permits issued under the origin country’s laws and internationally recognized certification / chain-of-custody evidence. The exact document package should be confirmed with the Korean importer before shipment.
Questions from Korean procurement teams.
Is SIB PELLET claiming I2 or I3 certification?
No. SIB PELLET uses the Korean industrial I2/I3 framework and ISO 17225-2 as qualification references. Final conformity must be demonstrated against the buyer's specification using agreed sampling, test methods and current batch evidence.
What are the Korean I2 limits for ash, sulfur and chlorine?
The industrial pellet table available through Korea's National Law Information Center lists I2 ash at ≤3.0% dry basis, sulfur at ≤0.05% dry basis and chlorine at ≤0.05% dry basis.
What changes for I3?
The same table lists I3 ash at ≤5.0%, sulfur at ≤0.05% and chlorine at ≤0.1%, with durability ≥95.0% and fines ≤6.0%.
Does a buyer specification override the generic class?
Commercially, yes: the signed specification, agreed test methods, sampling and acceptance procedure are the shipment acceptance basis. A utility or trader may use limits tighter than the national class.
What import documentation should be discussed early?
Origin and legality evidence should be discussed before contracting. Korea's timber import system lists documents such as origin-country harvest permits and internationally recognized legality or chain-of-custody evidence, including FSC/PEFC-type documentation where applicable.
Official framework behind this page.
KakaoTalk is available for direct communication.
Stanislav Panov
Mobile / KakaoTalk: +7 905 976-47-17
Korean buyers can find this contact in KakaoTalk by the phone number above. Technical RFQs can also be sent to info@sibpellet.com.
Send the utility or trader specification.
Destination port, shipment volume, I2/I3 target, sulfur, chlorine, nitrogen, inspection and delivery basis.
See the product and production environment.
Official Segezha Group photography from the Lesosibirskiy LDK No.1 production site.

