Waste Propylene Glycol Heat Transfer Fluid from Mexico
Spent glycol mixture from industrial heat exchangers and HVAC systems, degraded thermal properties. HTS 3825.50.00.00 as anti-freeze fluid waste per chapter note 6(d). Less toxic than ethylene glycol but still regulated.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Distinguish food-grade vs industrial grade for disposal options
• Test glycol degradation products (acids, aldehydes)