Chapter 28 · Inorganic chemicals · Section 6
HS Code 2850.00
Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849
US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources
United States - HTS lines under 2850.00
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 2850.00.05 | Of calcium | Free | - | 25% | kg |
| 2850.00.07 | Of titanium | 4.9% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 30% | kg |
| 2850.00.10 | Of tungsten | 5.5% | Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) | 45.5% | kg, W kg |
| 2850.00.20 | Of vanadium | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | kg, V kg |
| 2850.00.50 | Other | 3.7% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
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Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 2850.00
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 2850 00 90 | Borides | EU duty (TARIC) → |
| 2850 00 60 | Azides; silicides | EU duty (TARIC) → |
| 2850 00 20 | Hydrides; nitrides | EU duty (TARIC) → |
| 2850 00 00 | 2850 00 Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849 | EU duty (TARIC) → |
United Kingdom - commodity codes under 2850.00
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 2850 00 00 00 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849 | UK duty & VAT → |
| 2850 00 20 00 | Hydrides; nitrides | UK duty & VAT → |
| 2850 00 20 10 | Silane (CAS RN 7803-62-5) | UK duty & VAT → |
| 2850 00 20 40 | Germanium tetrahydride (CAS RN 7782-65-2) | UK duty & VAT → |
| 2850 00 20 60 | Disilane (CAS RN 1590-87-0) | UK duty & VAT → |
| 2850 00 20 70 | Cubic Boron nitride (CAS RN 10043-11-5) | UK duty & VAT → |
| 2850 00 20 80 | Arsine (CAS RN 7784-42-1) with a purity by volume of 99,999% or more, for use in the production of semiconductors | UK duty & VAT → |
| 2850 00 20 90 | Other | UK duty & VAT → |
| 2850 00 60 00 | Azides; silicides | UK duty & VAT → |
| 2850 00 60 10 | Sodium azide (CAS RN 26628-22-8) | UK duty & VAT → |
| 2850 00 60 19 | Other | UK duty & VAT → |
| 2850 00 60 91 | Calcium silicon - a chemical compound that contains by weight 16 % or more of calcium, 45 % or more of silicon, less than 14 % of iron and not more than 10 % of any other element; whether or not presented in bulk, packaged in bags or in steel drums, enclosed in steel sheets (or cored wire), or otherwise presented | UK duty & VAT → |
| 2850 00 60 95 | Other | UK duty & VAT → |
| 2850 00 90 00 | Borides | UK duty & VAT → |
Other subheadings in 2850
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.