Aluminum Prototype Housings from Mexico

CNC-machined aluminum enclosures for electronic prototypes and R&D. Under 7616.99.51.90 as other fabricated aluminum articles, not specific cases (Chapter 85/39). Common in tech development.

Duty Rate — Mexico → United States

52.5%

Rate breakdown

9903.85.0750%Except as provided in headings 9903.85.09, 9903.85.68 or 9903.85.70, derivative aluminum products, provided for in the tariff provisions enumerated in subdivision (j) of note 19 to this subchapter.

Import Tips

Prototype status may qualify for temporary importation under bond; document R&D purpose

Measure wall thickness; thin housings risk foil classification (7607)