Crude Kieserite Crystals from Mexico
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.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include XRF analysis proving >90% MgSO4·H2O content; segregate from synthetic epsom salts in shipments; check for radioactive impurities common in some deposits