Strontium Tungstate Fine Powder from China
Strontium tungstate (SrWO4) fine powder functions in laser host materials and phosphors, under HTS 2841.80.00. It supports efficient energy transfer in optical applications.
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
• Optical purity certificates required for laser material verification
• Nanopowder (<100nm) may need additional nanomaterial declarations
• ITAR check if destined for defense laser systems