Lab Glassware Stopper from Mexico
Solid vulcanized rubber stopper for sealing laboratory flasks and test tubes, resistant to chemicals. HTS 4016.99.1500 for other rubber stoppers/closures.
Duty Rate — Mexico → United States
12.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include chemical compatibility certifications (e.g
• for acids/bases)
• Size standardization documentation prevents 'custom part' reclassification