HS code · 6-digit subheading
HS Code 2816.40 – Oxides, hydroxides and peroxides, of strontium or barium
HS code 2816.40 is the 6-digit subheading for oxides, hydroxides and peroxides, of strontium or barium. It is used for strontium oxide, strontium hydroxide, barium oxide, barium hydroxide and barium peroxide.
What HS 2816.40 covers
This HS code covers the oxides, hydroxides, and peroxides of strontium or barium, which are specialized inorganic chemicals with significant industrial applications. Strontium compounds are notably used in pyrotechnics to produce brilliant red colors, in ceramics, and in the production of specialty glass for cathode ray tubes (though less common now). Barium compounds find use in drilling fluids for the oil and gas industry, as pigments, and in certain medical applications (though barium sulfate, not covered here, is more common). Due to the toxicity of barium compounds, careful handling and regulatory compliance are crucial in their trade. Key importers and exporters include chemical suppliers, fireworks manufacturers, and companies in the oil & gas and ceramics sectors. Purity and specific chemical form are vital for their intended applications.
- Covers
- Strontium oxide
- Strontium hydroxide
- Barium oxide
- Barium hydroxide
- Barium peroxide
- Examples
- Solvay Barium Hydroxide
- Noah Chemicals Strontium Oxide
- Merck Barium Peroxide
Codes often confused with 2816.40
Common mistake. These compounds can be confused with other alkaline earth metal compounds, such as magnesium compounds (2816.10), or specific salts of strontium/barium like carbonates (2836).
Top exporters and importers of HS code 281640, 2025
In 2025, the largest exporter of HS code 281640 in UN Comtrade data was China, with 74% of world exports; the largest importer in UN Comtrade data was South Korea, with 29% 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 China $27M 74% of world exports
- 2 Germany $3.6M 9.8% of world exports
- 3 United States $1.6M 4.3% of world exports
World total: $37M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 South Korea $13M 29% of world imports
- 2 Japan $11M 23% of world imports
- 3 United States $4.0M 8.8% of world imports
World total: $45M 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 2816.40 2
Brazil splits HS 2816.40 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 2816.40.10 Barium hydroxideHidróxido de bário
- 2816.40.90 Other strontium or barium (hydr)oxides, peroxidesOutros
All Brazil NCM codes in heading 28.16 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2816.40
What is HS code 281640?
HS code 281640 is a 6-digit subheading in the Harmonized System that covers: Oxides, hydroxides and peroxides, of strontium or barium. This HS code covers the oxides, hydroxides, and peroxides of strontium or barium, which are specialized inorganic chemicals with significant industrial applications. Strontium compounds are notably used in pyrotechnics to produce brilliant red colors, in ceramics, and in the production of specialty glass for cathode ray tubes (though less common now). Barium compounds find use in drilling fluids for the oil and gas industry, as pigments, and in certain medical applications (though barium sulfate, not covered here, is more common). Due to the toxicity of barium compounds, careful handling and regulatory compliance are crucial in their trade. Key importers and exporters include chemical suppliers, fireworks manufacturers, and companies in the oil & gas and ceramics sectors. Purity and specific chemical form are vital for their intended applications.
What products fall under HS code 281640?
Strontium oxide, Strontium hydroxide, Barium oxide, Barium hydroxide, Barium peroxide
What are common misclassifications for HS code 281640?
These compounds can be confused with other alkaline earth metal compounds, such as magnesium compounds (2816.10), or specific salts of strontium/barium like carbonates (2836).
Which countries are the top exporters of goods under HS code 281640?
In 2025, the top exporters of HS code 281640 in UN Comtrade data were China ($27M, 74% of world exports), Germany ($3.6M) and the United States ($1.6M). World exports came to about $37M, 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 281640?
In 2025, the top importers of HS code 281640 in UN Comtrade data were South Korea ($13M, 29% of world imports), Japan ($11M) and the United States ($4.0M). World imports came to about $45M, 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 281640 structured?
HS code 281640 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (16) identify the heading, and digits 5-6 (40) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 281640?
Brazil splits HS code 281640 into 2 NCM codes: 2816.40.10 (Barium hydroxide), 2816.40.90 (Other strontium or barium (hydr)oxides, peroxides). The first 6 digits of each match the HS code.