U.S. imports of Kieserite and Epsom Salts (Natural Magnesium Sulfate) (HS 253020) totaled $75K in August 2026, imported from 4 countries.
Importers of Kieserite and Epsom Salts (Natural Magnesium Sulfate) paid $804 in duties in August 2026, an average duty rate of 1.08% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Kieserite and Epsom Salts (Natural Magnesium Sulfate) imports of $75K in August 2026 ran 44% below the year-to-date monthly average of $133K.
Last updated: August 2026 dataNatural magnesium sulfate encompasses two commercially distinct forms: kieserite (monohydrate, MgSO₄·H₂O), used primarily as a slow-release agricultural fertilizer and animal feed supplement, and Epsom salts (heptahydrate, MgSO₄·7H₂O), widely used in personal care, bath products, and horticulture. The US schedule separates these into dedicated 10-digit lines — kieserite (2530201000) and Epsom salts (2530202000) — making the hydration state a classification-critical specification. India leads US imports under this heading, with Germany and China also significant sources.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
4 import shipments a month
The US schedule distinguishes kieserite (2530201000), which is the monohydrate form (MgSO₄·H₂O), from Epsom salts (2530202000), which is the heptahydrate (MgSO₄·7H₂O). Importers must confirm the specific hydrate form with the supplier — typically via a certificate of analysis — because misidentifying the hydration state leads to classification under the wrong line. Synthetic magnesium sulfate produced by chemical reaction rather than mined from natural deposits may not qualify under either line and could fall under Chapter 28.
HTS heading 2530 covers minerals of natural origin extracted from geological deposits. Magnesium sulfate produced synthetically — for example, by reacting magnesium oxide with sulfuric acid — is classified in Chapter 28 as an inorganic chemical rather than here. Importers should obtain documentation from the supplier confirming the product is mined or naturally occurring, not chemically manufactured, to support classification under 253020.
Subheading 3 of 3 in heading 2530
Subheading 253020 · $75K of $9.6M
ImportsExports
Imports
$75KYoY · free account
Exports
$6KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.7M of Kieserite and Epsom Salts (Natural Magnesium Sulfate) and exported $370K.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 253020 — Kieserite and Epsom Salts (Natural Magnesium Sulfate), so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2530201000 | Kieserite | $37K | 0.00% | 0.00% | -- |
| 2530202000 | Epsom Salts | $37K | 2.17% | 8.67% | $804 |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2530200000 | Kieserite, Epsom Salts (Natural Magnesium Sulfate) | $6K |
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.
Imports · August 2026
origin
Germany and China together supply 100% of it. China pays 25.0% duty; Germany 0.0%.
customs district
destination
entry
rate provision · imports
95.7% enters free of duty; duty collected equals 1.08% of imports for consumption.