HS Code 2521.00 : Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
MODULE 2: EXTRACTABLE ANSWER (AEO / SPEAKABLE)
Tariff data verified: July 2026
EN (Official WCO)
FR (Pending)
ES (Pending)
The 6-digit Harmonized System (HS) code for limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement is 2521.00. Under the 2026 Cambodia (GDCE), the representative MFN general duty rate is 7% [General Department of Customs and Excise (GDCE)].
MODULE 3: SIGNATURE A: HS DECODE VISUAL HIERARCHY
Chapter 25
Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
Heading 2521
Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
Subheading .00
.00
Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
MODULE 4: SIGNATURE B: TARIFF MATRIX
Import Duty Rates by Destination
United StatesUnited KingdomEuropean UnionCanadaMexicoChinaJapanIndiaAustraliaSouth KoreaGermanyNetherlandsBrazilTürkiyeChinese TaipeiVietnamThailandIndonesiaMalaysiaSingaporeSaudi ArabiaUnited Arab EmiratesSouth AfricaEgyptIsraelChileColombiaPeruPhilippinesPakistanNew ZealandNorwayNigeriaKenyaMoroccoArgentinaEcuadorBangladeshUkraineKazakhstanQatarKuwaitOmanJordanBahrainSri LankaTunisiaGhanaCôte d'IvoireGeorgiaCambodiaPanamaCosta RicaDominican Republic
Cambodia (Cambodia GDCE Customs Tariff 2026)
2521.00
MODULE 5: CAMBODIA IMPORT DUTY & 10% VAT BREAKDOWN
Import VAT / Tax Rate
10% VAT
Local Tax Rate
Notice: Cambodia customs entry, tariff classification, MFN duty rates, and 10% VAT are governed by General Department of Customs and Excise (GDCE). Always verify declarable lines with General Department of Customs and Excise (GDCE) prior to import.
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MODULE 6: Mandatory Customs Entry Document Matrix
Rule-Derived Customs Entry Package Checklist
UNIVERSAL DOCUMENT
Commercial Invoice
Itemized description, currency, Incoterms, seller/buyer details, and country of origin.
UNIVERSAL DOCUMENT
Packing List & Bill of Lading
Gross/net weight, container/seal numbers, piece count, and transport B/L or Air Waybill.
PREFERENTIAL RULE
Certificate of Origin (If Claiming FTA)
Required only when claiming zero-duty preference under USMCA, KORUS, or GSP.
MODULE 7: Regulatory Compliance & Partner Government Agency (PGA) Flags
Standard Entry
This commodity does not carry mandatory PGA pre-clearance flags under the ACE message set.
MODULE 8: CAMBODIA Trade Remedies & Safeguards
General Department of Customs and Excise (GDCE) Anti-Dumping / Trade Defence
Standard Cambodia GDCE Customs Tariff 2026
Steel & Commodity Safeguards
Exempt (Non-Steel Commodity)
Regulatory Compliance Status
Standard Statutory Clearance
MODULE 9: Free Trade Agreements (FTA) & Rules of Origin (RoO)
Browse all preferential trade calculators & compliance tools in our Customs Tools Hub ↗.
| Agreement Code | Trade Agreement / Program | Preferential Rate | Rules of Origin (RoO) Requirement |
|---|---|---|---|
| MFN | WCO Most-Favoured-Nation (MFN) Status | Standard MFN Rate | Applies to all WTO member states for Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement. |
| FTA | Cambodia Preferential & Regional Trade Agreements | Free / Concessional | Subject to official Certificate of Origin & Rules of Origin (RoO) requirements. |
MODULE 10: Logistics, Freight & Transport Specifications
Standard 20ft Container
~28 CBM / 28,000 kg Payload
Standard 40ft High-Cube
~68 CBM / 28,600 kg Payload
Stowage Factor & Handling
Standard commercial packaging for Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
MODULE 11: GDCE Customs Advance Ruling System
Legally binding advance tariff rulings issued by General Department of Customs and Excise for HS 2521.00.
Query official Customs portal:
Search Official Customs Portal for 2521.00 →Cambodia Declarable Tariff Schedule (2521.00)
National line-level (8/10-digit) detail for Cambodia (GDCE): coverage in progress.
Universal 6-digit WCO backbone applied rate: 7%. Confirm the full national commodity code at the official source (General Department of Customs and Excise (GDCE)).
MODULE 12: Candidate Subheadings & Related Codes
| Related HS Code | Heading Category | Action |
|---|---|---|
| 2521.10 | Subheading under Heading 2521 | HS 2521.10 Cambodia Duty & Entry Rules → |
| 2521.20 | Subheading under Heading 2521 | HS 2521.20 Cambodia Duty & Entry Rules → |
| 2521.90 | Subheading under Heading 2521 | HS 2521.90 Cambodia Duty & Entry Rules → |
Official Primary Sources & Authority References
Cambodia (Cambodia GDCE Customs Tariff 2026) ↗
Official Cambodia tariff schedule and MFN duty rates — administered by General Department of Customs and Excise (GDCE).
General Department of Customs and Excise (GDCE) — Advance Tariff Ruling ↗
Binding tariff classification precedents administered by GDCE Customs Advance Ruling System.
MODULE 14: Frequently Asked Questions (FAQ) & Operational Guide
What is the 6-digit WCO tariff classification and United States (USITC HTS) general duty for Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement?
Under WCO Harmonized System 2022 and United States (USITC HTS), Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement is classified under HS 2521.00 (Heading 2521, Chapter 25). The representative KH MFN general duty rate is 7%.
How is HS 2521.00 distinguished within Heading 2521 (Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement)?
Heading 2521 covers Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement. Subheading 2521.00 specifically isolates Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement. Importers must verify whether physical characteristics, processing state, or composition require alternative subheadings under Heading 2521.
What are the primary candidate subheadings related to HS 2521.00?
Related subheadings under Heading 2521 include . Classification depends on processing stage, decaffeination, purity, or material form.
What mandatory commercial entry documents are required to import Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement?
Commercial Invoice (detailing Incoterms, currency, and origin), Packing List, Bill of Lading (or Air Waybill), CBP Form 7501 Entry Summary, and a continuous customs bond are required for formal entries.
Can goods under HS 2521.00 enter duty-free under USMCA or Free Trade Agreements?
Yes. Eligible goods originating in Mexico, Canada, South Korea, or Australia enter duty-free under preference SPI codes (P, KR, AU) provided they satisfy Regional Value Content (RVC) or tariff-shift rules with a valid Certificate of Origin.
What is the US formal entry threshold for shipments of Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement?
Commercial shipments of Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement with a customs value exceeding $2,500 USD require formal customs entry (CBP Form 7501) and a continuous entry bond. Informal entry applies to lower values.
How can an importer obtain a binding CBP classification ruling for HS 2521.00?
Importers may submit an e-Ruling request under 19 CFR Part 177 to CBP National Commodity Specialist Division (NCSD) to obtain a legally binding tariff classification ruling prior to importation.
What import VAT or sales tax applies to HS 2521.00 in Cambodia?
Commercial imports of Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement under HS 2521.00 into Cambodia are subject to 10% VAT, assessed on the entered customs value plus applicable duties.
What is the customs duty de minimis threshold in Cambodia?
The customs de minimis threshold for import shipments into Cambodia is KHR threshold. Consignments under this value may qualify for duty-free or simplified entry under local regulations.
Which authority regulates customs entry and tariff classification in Cambodia?
Customs declarations, import duty assessments, and GDCE Customs Advance Ruling System for HS 2521.00 are administered by General Department of Customs and Excise (GDCE).
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