Crude Kieserite Crystals
Naturally occurring kieserite crystals mined from evaporite deposits, minimally processed by washing to remove surface impurities. HTS 2530.20.10.00 covers this unrefined natural epsom salt form excluded from chemical headings. Key import for magnesium supplement production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If dissolved and recrystallized
Lab-produced magnesium sulfate classified as artificial salts in heading 2833.
If containing other earth colors
Mixed mineral substances with iron oxides fall under 2530.49 per statistical notes.
If chemically treated for specific uses
Prepared chemical products shift from natural minerals to Chapter 38.
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Import Tips & Compliance
• Include XRF analysis proving >90% MgSO4·H2O content; segregate from synthetic epsom salts in shipments; check for radioactive impurities common in some deposits
Related Products under HTS 2530.20.10.00
Natural Kieserite Ore
Raw kieserite ore extracted from natural deposits, consisting primarily of magnesium sulfate monohydrate (MgSO4·H2O). It falls under HTS 2530.20.10.00 as a natural magnesium sulfate mineral not elsewhere specified in Chapter 25. Used mainly as a fertilizer ingredient and in industrial magnesium production.
Kieserite Mineral Flakes
Flaked natural kieserite obtained by crushing and screening raw ore, retaining its natural magnesium sulfate composition without chemical alteration. Classified under HTS 2530.20.10.00 as unprocessed kieserite per Chapter 25 notes excluding worked minerals. Primarily imported for agricultural soil amendment.
Kieserite Evaporite Rock
Kieserite-bearing rock from ancient salt deposits, crushed to fist-sized pieces for transport. Falls under HTS 2530.20.10.00 as natural kieserite per full hierarchy excluding processed forms. Used in bulk for fertilizer plants.
Washed Kieserite Concentrate
Kieserite concentrate produced by water washing raw ore to >95% purity, without drying or heating. HTS 2530.20.10.00 applies to this minimally processed natural magnesium sulfate. Imported for industrial de-icing and agriculture.