Calcined Kaolin Powder
High-purity calcined kaolin powder used as a filler in paper production to enhance brightness and opacity. This product falls under HTS 2507.00.00.00 as it is calcined kaolin clay, processed by heating to remove water without altering its fundamental mineral structure.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically processed into kaolin powder with additives for industrial formulations
Chemical preparations like treated kaolin fillers move to Chapter 28 as artificial preparations, not natural clays.
If when pre-mixed as a clay-based compound for drilling fluids
Mixtures activated for specific uses like oilfield applications fall under activated clays heading.
If refractory grade and supplied in bulk for high-temperature applications
Refractory clays prepared for immediate use in linings may classify under Chapter 69 ceramics.
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Import Tips & Compliance
• Verify calcination status with lab certificates; uncalcined kaolin has different properties and potential reclassification risks
• Include geological origin documentation as some countries have quotas or special duty rates on clay imports
• Ensure packaging labels specify 'kaolinic clay' to avoid confusion with other mineral earths in Chapter 25
Related Products under HTS 2507.00.00.00
Hydrous Kaolin Clay
Natural hydrous (uncalcined) kaolin clay mined and minimally processed for use in ceramics and refractories. Classified under HTS 2507.00.00.00 as other kaolinic clays, whether or not calcined, covering raw forms.
Kaolin Clay for Paper Filler
Fine-particle kaolin clay specifically graded for use as a coating and filler in paper manufacturing. Falls under HTS 2507.00.00.00 as kaolinic clay meeting particle size specs but remaining natural mineral product.
Ball Clay (Kaolinic)
Plastic ball clay with high kaolinite content used in sanitaryware and tableware production. HTS 2507.00.00.00 covers this kaolinic clay despite its higher plasticity compared to pure kaolin.
Kaolin for Ceramic Sanitaryware
Premium kaolin selected for low iron content in manufacturing bathroom fixtures and tiles. Classified under HTS 2507.00.00.00 as other kaolinic clays meeting ceramics industry purity standards.
Air-Floated Kaolin
Kaolin clay processed by air flotation to remove coarse particles, used in paints and rubber. Remains under HTS 2507.00.00.00 as physical processing doesn't change natural clay classification.
Kaolin Calcined for Paint Extender
Structurally modified calcined kaolin providing matting and opacity in architectural paints. HTS 2507.00.00.00 applies as calcination alone doesn't constitute chemical change.