HFC-134a with Stabilizer Additive from Mexico
HFC-134a containing proprietary stabilizer (<0.1%) for metal corrosion prevention during storage and transport. Chapter Note (f) allows classification under HTS 2903.45.10.00 when stabilizer is necessary for preservation.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Document stabilizer composition and concentration to justify Chapter Note (f) classification
• Provide evidence stabilizer is solely for preservation, not functional performance enhancement
• Maintain stabilizer addition records for CBP verification during liquid vs gas phase analysis