HS code · 6-digit subheading
HS Code 2816.10 – Hydroxide and peroxide of magnesium
HS code 2816.10 is the 6-digit subheading for hydroxide and peroxide of magnesium. It is used for magnesium hydroxide powder, magnesium hydroxide suspension, magnesium peroxide granular, pharmaceutical grade magnesium hydroxide and flame retardant magnesium hydroxide.
What HS 2816.10 covers
This HS code encompasses magnesium hydroxide and magnesium peroxide, two distinct but related inorganic compounds with diverse applications. Magnesium hydroxide is widely recognized as an antacid and laxative in pharmaceuticals, but also serves as a flame retardant and smoke suppressant in plastics and rubber. Magnesium peroxide, on the other hand, is primarily used as an oxidizing agent, particularly in environmental applications like soil remediation and wastewater treatment, where it slowly releases oxygen. Key players in the trade of these goods include pharmaceutical companies, plastics manufacturers, and environmental technology firms. Important aspects for trade include the purity and particle size of the compounds, as well as whether they are in powder, granular, or suspension form, which dictates their specific end-use.
- Covers
- Magnesium hydroxide powder
- Magnesium hydroxide suspension
- Magnesium peroxide granular
- Pharmaceutical grade magnesium hydroxide
- Flame retardant magnesium hydroxide
- Examples
- Milk of Magnesia
- Magnox (magnesium hydroxide)
- Oxy-Mag (magnesium peroxide)
Codes often confused with 2816.10
Common mistake. Misclassification can occur with other magnesium compounds, such as magnesium oxide (2816.40 if combined with other alkaline earth oxides), or other metal hydroxides/peroxides.
Top exporters and importers of HS code 281610, 2025
In 2025, the largest exporter of HS code 281610 in UN Comtrade data was Russia, with about 17% of world exports; the largest importer in UN Comtrade data was Germany, with 13% 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 Russia* ~$44M 17% of world exports · partner records ↗
- 2 Netherlands $44M 17% of world exports
- 3 Austria $35M 14% of world exports
World total: $255M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $38M 13% of world imports
- 2 Italy $37M 13% of world imports
- 3 United States $28M 9.7% of world imports
World total: $288M 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 2816.10 2
Brazil splits HS 2816.10 into 2 NCM codes, Mercosur's 8-digit tariff lines.
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 2816.10
What is HS code 281610?
HS code 281610 is a 6-digit subheading in the Harmonized System that covers: Hydroxide and peroxide of magnesium. This HS code encompasses magnesium hydroxide and magnesium peroxide, two distinct but related inorganic compounds with diverse applications. Magnesium hydroxide is widely recognized as an antacid and laxative in pharmaceuticals, but also serves as a flame retardant and smoke suppressant in plastics and rubber. Magnesium peroxide, on the other hand, is primarily used as an oxidizing agent, particularly in environmental applications like soil remediation and wastewater treatment, where it slowly releases oxygen. Key players in the trade of these goods include pharmaceutical companies, plastics manufacturers, and environmental technology firms. Important aspects for trade include the purity and particle size of the compounds, as well as whether they are in powder, granular, or suspension form, which dictates their specific end-use.
What products fall under HS code 281610?
Magnesium hydroxide powder, Magnesium hydroxide suspension, Magnesium peroxide granular, Pharmaceutical grade magnesium hydroxide, Flame retardant magnesium hydroxide
What are common misclassifications for HS code 281610?
Misclassification can occur with other magnesium compounds, such as magnesium oxide (2816.40 if combined with other alkaline earth oxides), or other metal hydroxides/peroxides.
Which countries are the top exporters of goods under HS code 281610?
In 2025, the top exporters of HS code 281610 in UN Comtrade data were Russia (about $44M, 17% of world exports), the Netherlands ($44M) and Austria ($35M). World exports came to about $255M, 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 281610?
In 2025, the top importers of HS code 281610 in UN Comtrade data were Germany ($38M, 13% of world imports), Italy ($37M) and the United States ($28M). World imports came to about $288M, 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 281610 structured?
HS code 281610 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 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 281610?
Brazil splits HS code 281610 into 2 NCM codes: 2816.10.10 (Magnesium hydroxide), 2816.10.20 (Magnesium peroxide). The first 6 digits of each match the HS code.