Sintered Tungsten Rod for Lamp Filaments from China
A high-purity tungsten rod produced by powder metallurgy sintering, used primarily in manufacturing incandescent and halogen lamp filaments. It qualifies under HTS 8101.94.00.00 as unwrought tungsten in rod form obtained simply by sintering, without further mechanical working. This form provides the necessary ductility and high melting point for filament applications.
Duty Rate — China → United States
41.6%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.91.1125%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (j) of U.S. note 31 to this subchapter
Import Tips
• Verify purity certificates showing tungsten content to confirm classification under Chapter 81 and avoid reclassification as alloys
• Provide documentation proving the material is 'unwrought' and obtained simply by sintering, not involving drawing or forging