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U.S. exports of mineral substances not elsewhere specified (HS 253090) totaled $11.0M in July 2026.
Importers of Mineral Substances Not Elsewhere Specified paid $29K in duties in July 2026 — an effective duty rate of 6.5% on $452K in dutiable value, based on actual customs collections rather than the published tariff schedule. Mineral Substances Not Elsewhere Specified imports of $6.4M in July 2026 ran 27% below the year-to-date monthly average of $8.7M.
Last updated: July 2026 dataA catch-all heading for naturally occurring mineral substances that do not fit more specific HS chapters, covering commercially distinct materials such as natural cryolite (2530901000), natural chiolite, natural micaceous iron oxides (2530902000), celestite (2530908010), earth colors (2530908015), and residual mineral substances (2530908050, 2530908060). Celestite is the primary commercial source of strontium compounds, while natural micaceous iron oxides are valued as corrosion-resistant pigment inputs. Canada and Mexico are the leading suppliers to the US market, with Japan, Thailand, and Germany also contributing across the diverse product mix within this heading. Correct classification within the six US tariff lines depends on precise mineral identification, as each line carries distinct duty treatment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
584 shipments/mo
Classification depends on the specific mineral identity of the product. Named minerals such as celestite (2530908010) or natural micaceous iron oxides (2530902000) must be classified in their dedicated lines; only truly unspecified mineral substances fall into the residual lines 2530908050 or 2530908060. A licensed customs broker and, where needed, a CBP binding ruling can resolve ambiguous cases.
Celestite (strontianite) is a naturally occurring strontium sulfate mineral classified at 2530908010. It is the principal raw material for strontium carbonate and strontium nitrate used in pyrotechnics, electronics, and specialty glass. Importers should distinguish it from processed strontium compounds, which fall under different HS chapters and carry separate duty treatment.
HSChapter 25
Subheading 1 of 3 in heading 2530
Subheading 253090 · $6.4M of $9.4M
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ImportsExports
Imports
$6.4MYoY · Pro
Exports
$11.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2530908050 | Mineral Substances NESOI | $5.2M | 0.44% | 4.35% | $23K |
| 2530901000 | Natural Cryolite; Natural Chiolite | $794K | 0.00% | 0.00% | -- |
| 2530902000 | Natural Micaceous Iron Oxides | $230K | 2.85% | 98.12% | $7K |
| 2530908010 | Celestite | $107K | 0.00% | 0.00% | -- |
| 2530908015 | Earth Colors | $34K | 0.00% | 0.00% | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2530908060 | Mineral Substances NESOI | $10.9M |
| 2530901000 | Natural Cryolite; Natural Chiolite | $83K |
| 2530908015 | Earth Colors | $61K |
| 2530902000 | Natural Micaceous Iron Oxides | $38K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · July 2026
destination
customs district
origin
entry
rate provision · imports
92.9% enters free of duty; the effective duty rate is 0.46%.