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Tungsten Oxychloride WCl4O from Mexico

Tungsten oxychloride (WCl4O) is a volatile compound used in vapor phase deposition of tungsten oxide films for optical coatings. It qualifies as a chloride oxide of tungsten under HTS 2827.39.40.00. The compound features a distinctive yellow color and high reactivity.

Duty Rate — Mexico → United States

15.5%

Rate breakdown

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

Import Tips

Confirm molecular formula via analytical certificate; store in inert atmosphere containers; declare as UN 2444 for air transport

Tungsten Oxychloride WCl4O from Mexico — Import Duty Rate | HTS 2827.39.40.00