HS Code 2508.40 : Other clays
MODULE 2: EXTRACTABLE ANSWER (AEO / SPEAKABLE)
EN (Official WCO)
FR (Pending)
ES (Pending)
The 6-digit Harmonized System (HS) code for other clays is 2508.40. Under the 2026 Thailand (Thai Customs), the representative MFN general duty rate is 0% [Thai Customs Department].
MODULE 3: SIGNATURE A: HS DECODE VISUAL HIERARCHY
Chapter 25
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths
Heading 2508
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths
Subheading .40
.40
Other clays
MODULE 4: SIGNATURE B: TARIFF MATRIX
Import Duty Rates by Destination
United StatesUnited KingdomEuropean UnionCanadaMexicoChinaJapanIndiaAustraliaSouth KoreaGermanyBrazilTürkiyeChinese TaipeiVietnamThailandIndonesiaMalaysiaSingaporeSaudi ArabiaUnited Arab EmiratesSouth AfricaEgyptIsraelChileColombiaPeruPhilippinesPakistanNew ZealandNorwayNigeriaKenyaMoroccoArgentinaEcuadorBangladeshUkraineKazakhstanQatarKuwaitOmanJordan
Thailand (Thai Customs Tariff 2026)
2508.40.00.00
MODULE 5: THAILAND IMPORT DUTY & TAX BREAKDOWN
Customs Duty (อากรขาเข้า)
0%
WTO MFN Rate
Import VAT
7.00 %
CIF + Duty Base
TRACK THIS HS CODE
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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 Other clays
MODULE 11: Thai Customs Advance Tariff Ruling
Legally binding advance classification rulings issued by Thai Customs Department for HS 2508.40.
Query official Thai Customs portal:
Search Official Thai Customs Portal for 2508.40 →Thailand Declarable Tariff Items (2508.40)
National line-level (8/10-digit) detail for Thailand (Thai Customs): coverage in progress.
Universal 6-digit WCO backbone applied rate: 0%. Confirm the full national commodity code at the official source (Thai Customs Department).
MODULE 12: Candidate Subheadings & Related Codes
| Related HS Code | Heading Category | Action |
|---|---|---|
| 2508.10 | Subheading under Heading 2508 | Compare Subheading 2508.10 → |
| 2508.30 | Subheading under Heading 2508 | Compare Subheading 2508.30 → |
| 2508.50 | Subheading under Heading 2508 | Compare Subheading 2508.50 → |
| 2508.60 | Subheading under Heading 2508 | Compare Subheading 2508.60 → |
| 2508.70 | Subheading under Heading 2508 | Compare Subheading 2508.70 → |
Official Primary Sources & Authority References
Thai Customs Department ↗
Official Thai customs tariff schedule and general duty (อากรขาเข้า) rates.
Thai Customs Advance Tariff Ruling System ↗
Thai Customs Department binding advance tariff classification rulings database.
MODULE 14: Frequently Asked Questions (FAQ) & Operational Guide
What is the 6-digit WCO tariff classification and Thailand (Thai Customs) general duty for Other clays?
Under WCO Harmonized System 2022 and Thailand (Thai Customs), Other clays is classified under HS 2508.40 (Heading 2508, Chapter 25). The representative TH MFN general duty rate is 0%.
How is HS 2508.40 distinguished within Heading 2508 (Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths)?
Heading 2508 covers Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths. Subheading 2508.40 specifically isolates Other clays. Importers must verify whether physical characteristics, processing state, or composition require alternative subheadings under Heading 2508.
What are the primary candidate subheadings related to HS 2508.40?
Related subheadings under Heading 2508 include 2508.10, 2508.30, 2508.50, 2508.60, 2508.70. Classification depends on processing stage, decaffeination, purity, or material form.
What mandatory commercial entry documents are required to import Other clays?
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 2508.40 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 Other clays?
Commercial shipments of Other clays 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 2508.40?
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 is the import VAT rate for HS 2508.40 in Thailand?
Thailand assesses a standard 7% Value-Added Tax (VAT) on imports, calculated on CIF value + statutory customs duty (อากรขาเข้า).
What is Thailand's de minimis duty-free threshold?
Thailand's de minimis threshold for express parcel imports is THB 1,500 total CIF value. Consignments under this threshold enter duty-free and tax-free.
Which agency regulates customs clearance and advance rulings in Thailand?
Customs declarations and binding advance tariff classification rulings are administered by the Thai Customs Department.
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