HS code 284390: Colloidal Precious Metals
- Covers:
- Colloidal precious metals; inorganic or organic compounds of precious metals, whether or… not listed under the other codes in this heading.
- Not covered:
- 284310 (Colloidal precious metals); 284321 (Silver compounds — Silver nitrate); 284329 (Silver compounds — Other); and others.
- Listed US duty:
- 3.7% (US general rate, HTS 2026)
Official description
Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals : Other compounds; amalgams
Find or check your HS code
Suggestions from the HS index, not a customs ruling
Describe what you ship: what it is, what it is made of, how it is processed and what it is used for. I narrow it down against the real HS hierarchy, or check a code you were given.
What 284390 covers and what it doesn’t
Official text: Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals › Other compounds; amalgams.
This is the “other” line of heading 2843 (colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals). It takes goods of that heading that no more specific subheading names. These go elsewhere:
Nearby codes to check
- Heading 2843 Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals: every subheading side by side.
US duty rate
3.7%
General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.
Common questions
- What is HS code 284390?
- Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals : Other compounds; amalgams
- What duty rates apply to 284390?
- Listed duty rates range from 3.7% across 1 country rate.
Go beyond the code
Find the companies shipping under 284390 in the company directory, or classify and check duty with the CLI.