HS code · 6-digit subheading

HS Code 8105.90 – Cobalt; articles n.e.c. in heading no. 8105

HS code 8105.90 is the 6-digit subheading for cobalt, articles n.e.c. in heading no. 8105. It is used for cobalt-based superalloy components, cobalt-chrome medical implants, cobalt permanent magnets, cobalt-tungsten carbide tools and cobalt-plated articles.

What HS 8105.90 covers

This "not elsewhere specified or included" (NESOI) code for cobalt covers a range of manufactured articles primarily made of cobalt that do not fall under other specific headings within Chapter 81. It's a broad category for finished or semi-finished cobalt products, excluding raw forms, waste, or scrap. International trade under this code involves specialized components and products where cobalt's unique properties – such as high temperature strength, magnetic properties, and corrosion resistance – are essential. Importers are typically high-tech industries like aerospace, medical device manufacturing, and specialized electronics. Exporters are often countries with advanced metallurgical and manufacturing capabilities in cobalt fabrication. Key considerations in this trade include the specific alloy composition, manufacturing precision, surface treatments, and the intended application of the articles. These products represent higher-value goods, often requiring sophisticated engineering and processing, and are critical for niche, high-performance applications.

Covers
  • Cobalt-based superalloy components
  • Cobalt-chrome medical implants
  • Cobalt permanent magnets
  • Cobalt-tungsten carbide tools
  • Cobalt-plated articles
  • Cobalt targets for sputtering
  • Cobalt-based welding rods
Examples
  • Stellite alloy components
  • Samarium-cobalt magnets
  • Hip replacement cobalt-chrome parts
  • Cutting tool inserts with cobalt binder
  • High-temperature cobalt alloy turbine blades

Codes often confused with 8105.90

Common mistake. This code can be confused with specific articles classified elsewhere by function (e.g., 9021 for orthopedic appliances) if the cobalt component is part of a larger medical device, or with 810520 (Unwrought cobalt) if the article is very basic and not clearly "manufactured."

90.21Orthopaedic appliances; including crutches, surgical belts and trusses; splints and other fracture appliances; artificial parts of the body; hearing aids and other which are worn, carried or implanted in the body to compensate for a defect or disability8105.20Cobalt; mattes and other intermediate products of cobalt metallurgy, unwrought cobalt, powders

Top exporters and importers of HS code 810590, 2025

In 2025, the largest exporter of HS code 810590 in UN Comtrade data was the United States, with 36% of world exports; the largest importer in UN Comtrade data was the United States, with 9.9% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Top exporters 2025 · share of world exports

  1. 1 United States $267M
  2. 2 United Kingdom $140M
  3. 3 Germany $104M

World total: $747M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 United States $69M
  2. 2 China $69M
  3. 3 France $59M

World total: $704M Reported figures on UN Comtrade ↗

How these figures are built

109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).

Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.

Brazil NCM codes for 8105.90 2

Brazil splits HS 8105.90 into 2 NCM codes, Mercosur's 8-digit tariff lines.

  1. 8105.90.10 Cobalt plates, sheets, strip, wire and rodsChapas, folhas, tiras, fios, hastes, pastilhas e plaquetas
  2. 8105.90.90 Other articles of cobaltOutros

All Brazil NCM codes in heading 81.05 →

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.

Questions about HS 8105.90

What is HS code 810590?

HS code 810590 is a 6-digit subheading in the Harmonized System that covers: Cobalt; articles n.e.c. in heading no. 8105. This "not elsewhere specified or included" (NESOI) code for cobalt covers a range of manufactured articles primarily made of cobalt that do not fall under other specific headings within Chapter 81. It's a broad category for finished or semi-finished cobalt products, excluding raw forms, waste, or scrap. International trade under this code involves specialized components and products where cobalt's unique properties – such as high temperature strength, magnetic properties, and corrosion resistance – are essential. Importers are typically high-tech industries like aerospace, medical device manufacturing, and specialized electronics. Exporters are often countries with advanced metallurgical and manufacturing capabilities in cobalt fabrication. Key considerations in this trade include the specific alloy composition, manufacturing precision, surface treatments, and the intended application of the articles. These products represent higher-value goods, often requiring sophisticated engineering and processing, and are critical for niche, high-performance applications.

What products fall under HS code 810590?

Cobalt-based superalloy components, Cobalt-chrome medical implants, Cobalt permanent magnets, Cobalt-tungsten carbide tools, Cobalt-plated articles, Cobalt targets for sputtering, Cobalt-based welding rods

What are common misclassifications for HS code 810590?

This code can be confused with specific articles classified elsewhere by function (e.g., 9021 for orthopedic appliances) if the cobalt component is part of a larger medical device, or with 810520 (Unwrought cobalt) if the article is very basic and not clearly "manufactured."

Which countries are the top exporters of goods under HS code 810590?

In 2025, the top exporters of HS code 810590 in UN Comtrade data were the United States ($267M, 36% of world exports), the United Kingdom ($140M) and Germany ($104M). World exports came to about $747M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Which countries are the top importers of goods under HS code 810590?

In 2025, the top importers of HS code 810590 in UN Comtrade data were the United States ($69M, 9.9% of world imports), China ($69M) and France ($59M). World imports came to about $704M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

How is HS code 810590 structured?

HS code 810590 is a 6-digit subheading under the Harmonized System. The first 2 digits (81) identify the chapter, digits 3-4 (05) identify the heading, and digits 5-6 (90) specify the subheading. This code is standardized globally by the World Customs Organization.

What is the Brazil NCM code for HS code 810590?

Brazil splits HS code 810590 into 2 NCM codes: 8105.90.10 (Cobalt plates, sheets, strip, wire and rods), 8105.90.90 (Other articles of cobalt). The first 6 digits of each match the HS code.