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8481.80.90.40/Pneumatic Needle Valve for Precision Dopant Injection/Mexico

Pneumatic Needle Valve for Precision Dopant Injection from Mexico

Micrometer-controlled pneumatic needle valve for dopant precursor injection in semiconductor crystal growth. Under HTS 8481.80.9040 as other precision pneumatic valve. 0.001" resolution flow control.

Duty Rate — Mexico → United States

12%

Rate breakdown

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

• Document dopant precursor compatibility (POCl3, PH3); include stem resolution specs; SEMI MFAS flow accuracy certification