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8423.90.90.00/Semiconductor Wafer Mass Balance Housing/Mexico

Semiconductor Wafer Mass Balance Housing from Mexico

Protective housing enclosure for precision balances used in measuring semiconductor wafer mass post-slicing and pre-fabrication. HTS 8423.90.90.00 covers it as other parts ensuring cleanroom stability for weighing operations in wafer prep. Shields against contamination during flatness and tolerance checks.

Duty Rate — Mexico → United States

12.8%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Certify ISO cleanroom compatibility (Class 1-100) in import docs for semiconductor context

• Pair with balance serial numbers for traceability in customs valuation