Tolyltriazole Flake Form TTA-99 from China
Tolyltriazole flakes (TTA-99, CAS 29385-43-1) designed for easy dissolution in industrial formulations. Used extensively in closed-loop cooling water systems to protect copper alloys. Falls under HTS 2933.99.82.20 as the specific tolyltriazole compound with permitted stabilizer per chapter note (f).
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Document stabilizer type and concentration (<2%) to qualify under chapter note (f) for pure compound status
• Use UN-approved packaging for corrosive solid; improper packaging causes common entry delays
• Provide downstream handler certifications to demonstrate legitimate industrial chemical use