High-Purity Ammonium Paratungstate Pentahydrate from China
99.9% pure ammonium paratungstate pentahydrate (APT·5H2O) for semiconductor precursor applications. Meets strict chemically defined standards for HTS 2841.80.0010 classification.
Duty Rate — China → United States
30.5%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• ICP-MS analysis required for trace metal certification
• Cleanroom packaging specifications for electronics import
• Confirm no organic stabilizers present