Natural Kieserite Ore from China
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.
Duty Rate — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify mineral purity through lab certification to avoid reclassification as synthetic chemicals; ensure origin documentation proves natural extraction; watch for contamination that could shift to heading 2833