HTS US: 2511.XX.XXXX
Description
This heading encompasses naturally occurring barium minerals primarily used in various industrial, chemical, and manufacturing processes. It includes two main mineral types:
- Natural barium sulfate (barytes): A heavy mineral composed of barium sulfate, widely utilized in drilling fluids for oil and gas exploration, as a pigment, and in the production of barium chemicals.
- Natural barium carbonate (witherite): A naturally occurring carbonate mineral of barium used in ceramics, glass production, and as a precursor in chemical manufacturing.
These minerals may or may not be calcined (heated to remove moisture or impurities), but the heading excludes barium oxide classified under heading 2816.
Code Hierarchy
- Section V: Mineral Products (Chapters 25-27)
- Chapter 25: Salt; Sulfur; Earths and Stone; Plastering Materials, Lime and Cement
- Heading 2511: Natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816.
- US HTS Code (10-digit):
2511.XX.XXXX– The last digits specify the exact type and form of the mineral.
Detailed Breakdown of Subheadings
The heading 2511 is divided into more specific subheadings based on the type of mineral and its physical state:
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2511.10 | Natural barium sulfate (barytes): | Includes all forms of mined barytes before further processing. |
2511.10.10.00 |
Ground | Barytes that have been mechanically ground to a fine powder for industrial uses such as paints or drilling muds. |
2511.10.50.00 |
Other | Includes barytes in lump, crushed, or other forms not ground. |
| 2511.20.00.00 | Natural barium carbonate (witherite) | Unprocessed or calcined witherite mineral used as a raw material in manufacturing. |
What is NOT Classified Here?
Items excluded from this heading include:
- Barium oxide and other chemical compounds derived from barium minerals, which are classified under heading 2816.
- Synthetic or processed barium products that are not naturally occurring minerals.
Notes
- Industrial Applications: Barytes and witherite are crucial in sectors like petroleum drilling, glass manufacturing, and chemical production due to their physical and chemical properties.
- Processing State: The classification differentiates between ground and other forms because particle size affects usage and tariff treatment.
- Tariffs and Import Regulations: Import duties may vary depending on the exact subheading and end use; importers should consult the latest USHTS and regulatory bodies.
Declaration Example
Product: Shipment of ground natural barium sulfate (barytes) for industrial use.US HTS Code:
2511.10.10.00(Ground natural barium sulfate)Unit of Quantity: Metric ton (t)
General Duty Rate: Refer to current USHTS (varies by trade agreements and use)
Additional Requirements: Certification of mineral origin and purity may be required.
Related HTS Codes
- HTS 2816: Barium oxide and other barium chemical products.
- HTS 2528: Natural sands of other minerals and quartz.
- HTS 2530: Mineral substances not elsewhere specified or included.











