HS 28

Chapter

Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes

HS Code 28 classifies "Inorganic chemicals, organic and inorganic compounds of precious metals, of rare earth metals, of radio-active elements and of isotopes" under Section VI (Products of Chemical or Allied Industries). This chapter-level code is used internationally for customs classification, tariff determination, and trade statistics.

Classification Details

HS Code28

DescriptionInorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes

LevelChapter (2-digit)

SectionVI — Products of Chemical or Allied Industries

Chapter28

🇺🇸 US Import Duty

Average Duty Rate2.5%

Duty Range0-6.5%

NotesInorganic chemicals

Free Trade AgreementsMost FTAs: 0%

Rates are approximate and based on MFN (Most Favored Nation) tariffs. Actual rates may vary by specific product classification. Always verify with USITC for official rates.

Classification Guide

When classifying goods under HS 28, ensure the product matches the specific description. As a chapter-level code, this is a broad category. You'll need to narrow down to a 4-digit heading or 6-digit subheading for customs declaration.

Trade Context

Section VI covers chemical and pharmaceutical products — a high-value trade sector.

Regulatory Note

Pharmaceutical imports often require regulatory approval (FDA, EMA). Chemical safety data sheets (SDS) are mandatory for most products.

🇺🇸 US Import Document Checklist

Documents required when importing products under HS 28 into the United States.

Required for All Imports

☑Commercial InvoiceCBP

Detailed invoice from the seller showing product description, quantity, unit price, total value, and terms of sale (Incoterms).

☑Packing ListCBP

Itemized list of contents in each package, including weights, dimensions, and marks/numbers matching the shipping containers.

☑Bill of Lading (B/L) or Airway BillCarrier

Transport document issued by the carrier confirming receipt of goods for shipment. Acts as a contract of carriage and receipt.

☑CBP Entry Summary (Form 7501)CBP

The formal customs declaration filed with US Customs and Border Protection for all commercial imports.

☑Importer Security Filing (ISF/10+2)CBP

Must be filed at least 24 hours before ocean cargo is loaded. Required for all ocean shipments to the US.

☑Customs BondCBP

A financial guarantee ensuring payment of duties, taxes, and fees. Required for commercial shipments over $2,500.

Product-Specific Requirements

⚠️TSCA Import CertificationRequired

Certify that imported chemicals comply with the Toxic Substances Control Act.

Agency: EPA

⚠️Safety Data Sheet (SDS)Required

16-section document describing chemical hazards, handling, and emergency procedures.

Agency: OSHA

📋EPA NotificationMay be required

New chemical substances may require EPA pre-manufacture notification.

Agency: EPA

FTA Certificate of Origin (for preferential rates)

🤝USMCA Certificate of Origin — self-certification by importer, exporter, or producer. No prescribed format.

🤝Korea-US FTA Certificate of Origin — can be issued by importer, exporter, or producer.

This checklist is for general guidance only. Actual requirements may vary based on specific product, country of origin, and current regulations. Always consult with a licensed customs broker or the relevant agency for official requirements.

Sub-Classifications

Related HS Codes

28.01Fluorine, chlorine, bromine and iodine 2801.10Chlorine 2801.20Iodine 2801.30Fluorine; bromine 28.02Sulphur; sublimed or precipitated, colloidal sulphur 2802.00Sulphur; sublimed or precipitated, colloidal sulphur 28.03Carbon; carbon blacks and other forms of carbon n.e.c.2803.00Carbon; carbon blacks and other forms of carbon n.e.c.

Related Data Resources

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Frequently Asked Questions

What is HS Code 28?

What products fall under HS 28?

HS Code 28 covers: Inorganic chemicals, organic and inorganic compounds of precious metals, of rare earth metals, of radio-active elements and of isotopes. This is a broad category that includes more specific subcategories. Browse the child codes below for detailed product classifications.

How do I use HS Code 28 for customs?

What are the trade regulations for Products of Chemical or Allied Industries?

Pharmaceutical imports often require regulatory approval (FDA, EMA). Chemical safety data sheets (SDS) are mandatory for most products.

Is HS 28 the same in every country?

The first 6 digits of HS codes are standardized worldwide by the World Customs Organization (WCO). However, most countries add additional digits (8-10 total) for their national tariff schedules. Always verify the full code with your destination country's customs authority.

What is the US import duty for HS 28?

The average US import duty for products under HS 28 is approximately 2.5% (range: 0-6.5%). Most FTAs: 0% Note: actual rates depend on the specific product classification and country of origin. Verify with USITC for official rates.

Can I get a lower tariff rate under a Free Trade Agreement?

Most FTAs: 0%. The US has FTAs with 20 countries including Canada, Mexico (USMCA), South Korea (KORUS), Australia, and others. To qualify for preferential rates, goods must meet rules of origin requirements and have proper documentation (e.g., Certificate of Origin).

Data verified March 2026 · Source: UN Comtrade & USITC

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