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)
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 Kuwait (Customs), the representative MFN general duty rate is 5% [Kuwait General Administration of Customs].
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 KoreaGermanyBrazilTürkiyeChinese TaipeiVietnamThailandIndonesiaMalaysiaSingaporeSaudi ArabiaUnited Arab EmiratesSouth AfricaEgyptIsraelChileColombiaPeruPhilippinesPakistanNew ZealandNorwayNigeriaKenyaMoroccoArgentinaEcuadorBangladeshUkraineKazakhstanQatarKuwaitOmanJordanBahrainSri LankaTunisiaGhanaCôte d'IvoireGeorgiaCambodiaPanamaCosta RicaDominican Republic
Kuwait (General Administration of Customs)
2521.00
MODULE 5: KUWAIT IMPORT DUTY & TAX BREAKDOWN
Notice: Kuwait customs entry, GCC Common External Tariff classification, and MFN duty rates are governed by Kuwait General Administration of Customs. Kuwait does not currently levy a federal VAT on general imports. Always verify declarable lines with Kuwait Customs 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: Trade Remedies (Section 301, Section 232, AD/CVD)
China Section 301 Tariff Status
0% Additional Duty (Exempt)
Section 232 Steel/Aluminum Status
Exempt (Non-Metal Commodity)
EU CBAM Carbon Alert
Not in Scope
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 |
|---|---|---|---|
| P | United States-Mexico-Canada Agreement (USMCA) | Free | Must meet USMCA Regional Value Content (RVC) or tariff shift rules. |
| KR | U.S.-Korea Free Trade Agreement (KORUS) | Free | Direct shipment from South Korea with KORUS Certificate of Origin. |
| AU | U.S.-Australia Free Trade Agreement | Free | Wholly obtained or tariff shift rule under US-Australia FTA. |
| A / D | GSP / African Growth & Opportunity Act (AGOA) | Free | 35% local value-add requirement for beneficiary country origin. |
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: Kuwait Customs Advance Ruling System
Legally binding advance tariff rulings issued by Kuwait General Administration of Customs for HS 2521.00.
Query official Kuwait Customs portal:
Search Kuwait Customs Portal for 2521.00 →Kuwait Customs Tariff Schedule (2521.00)
National line-level (8/10-digit) detail for Kuwait (Customs): coverage in progress.
Universal 6-digit WCO backbone applied rate: 5%. Confirm the full national commodity code at the official source (Kuwait General Administration of Customs).
MODULE 12: Candidate Subheadings & Related Codes
| Related HS Code | Heading Category | Action |
|---|
Official Primary Sources & Authority References
Kuwait General Administration of Customs ↗
Official Kuwait Customs tariff schedule, GCC CET rules, and GAFTA rules.
Kuwait Customs Advance Ruling System ↗
Kuwait General Administration of Customs official binding advance classification rulings database.
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 KW MFN general duty rate is 5%.
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 Kuwait?
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 Kuwait are subject to No VAT currently (not yet implemented), assessed on the entered customs value plus applicable duties.
What is the customs duty de minimis threshold in Kuwait?
The customs de minimis threshold for import shipments into Kuwait is KWD 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 Kuwait?
Customs declarations, import duty assessments, and Kuwait Customs Advance Ruling System for HS 2521.00 are administered by Kuwait General Administration of Customs.
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