Industrial Chiller HFC-134a Top-Off Blend from Japan
Blend containing 75% HFC-134a with minor HFC-32 for topping off large industrial water chillers. HTS 3827.64.00.00 applies as HFC-134a exceeds 30% without unsaturated HFOs or ozone depleters. Used in manufacturing process cooling.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide pressure-temperature charts verifying azeotropic behavior; customs checks for proper HFC designation
• Industrial end-use requires additional TSCA reporting if >10,000 lbs annually
• Ensure cylinder valve compatibility with chiller service ports