Ground Barytes Powder for Drilling Mud from China
Finely ground natural barium sulfate (barytes) processed to a powder form suitable for use as a weighting agent in oil and gas drilling fluids. It falls under HTS 2511.10.10.00 as ground natural barium sulfate, distinguished from unground crude barytes by its pulverized state for industrial applications.
Duty Rate — China → United States
Rate breakdown
Import Tips
• Verify purity of barium sulfate content (>90%) via lab analysis to confirm classification as natural barytes and avoid reclassification as synthetic barium sulfate under 2833
• Include grinding specifications and particle size distribution (e.g
• D50 <10 microns) in commercial invoice to distinguish from crude barytes (2511.10.50)
• Obtain supplier certifications for natural origin to prevent issues with Chapter exclusions for chemically processed materials