HS code · 6-digit subheading
HS Code 2810.00 – Oxides of boron; boric acids
HS code 2810.00 is the 6-digit subheading for oxides of boron, boric acids. It is used for boric acid, boron trioxide, boron oxide, orthoboric acid and metaboric acid.
What HS 2810.00 covers
Oxides of boron and boric acids represent a group of boron-containing chemicals with diverse industrial applications, leading to their consistent presence in international trade. Boric acid, the most common form, is widely used in the manufacture of fiberglass, ceramics, and glazes, imparting heat resistance and durability. It also serves as a mild antiseptic, flame retardant, and a component in various consumer products like detergents and cosmetics. Boron oxides, such as boron trioxide, are primarily used in the production of specialty glass, enamels, and as a fluxing agent in metallurgy. Importers are typically industries involved in glass manufacturing, ceramics, agriculture (as a micronutrient), and chemical synthesis. Exporters are often countries with significant boron mineral deposits, such as Turkey and the United States, which process these minerals into the various oxides and acids. Key aspects of their trade include their role as essential raw materials for high-performance materials and their relatively stable demand across various industrial sectors. While generally considered low toxicity, proper industrial handling is still required. Their unique properties ensure a steady global market, supporting advanced material science and manufacturing.
- Covers
- Boric acid
- Boron trioxide
- Boron oxide
- Orthoboric acid
- Metaboric acid
- Industrial-grade boric acid
- Reagent-grade boric acid
- Examples
- Etibank Boric Acid
- US Borax Boric Acid
- Borax Morarji Boric Acid
- Sigma-Aldrich Boric Acid
- Merck KGaA Boric Acid
Codes often confused with 2810.00
Common mistake. This code covers boron oxides and boric acids. It might be confused with borates (e.g., sodium borate, 2840.11), which are salts derived from boric acid, or other boron compounds, but this code specifically refers to the oxides and the acid forms.
Top exporters and importers of HS code 281000, 2025
In 2025, the largest exporter of HS code 281000 in UN Comtrade data was the United States, with 42% of world exports; the largest importer in UN Comtrade data was China, with 38% 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 United States $212M 42% of world exports
- 2 Chile $85M 17% of world exports
- 3 Russia* ~$60M 12% of world exports · partner records ↗
World total: $502M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $283M 38% of world imports
- 2 Brazil $72M 9.7% of world imports
- 3 United States $45M 6.0% of world imports
World total: $747M 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 2810.00 2
Brazil splits HS 2810.00 into 2 NCM codes, Mercosur's 8-digit tariff lines.
All Brazil NCM codes in heading 28.10 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2810.00
What is HS code 281000?
HS code 281000 is a 6-digit subheading in the Harmonized System that covers: Oxides of boron; boric acids. Oxides of boron and boric acids represent a group of boron-containing chemicals with diverse industrial applications, leading to their consistent presence in international trade. Boric acid, the most common form, is widely used in the manufacture of fiberglass, ceramics, and glazes, imparting heat resistance and durability. It also serves as a mild antiseptic, flame retardant, and a component in various consumer products like detergents and cosmetics. Boron oxides, such as boron trioxide, are primarily used in the production of specialty glass, enamels, and as a fluxing agent in metallurgy. Importers are typically industries involved in glass manufacturing, ceramics, agriculture (as a micronutrient), and chemical synthesis. Exporters are often countries with significant boron mineral deposits, such as Turkey and the United States, which process these minerals into the various oxides and acids. Key aspects of their trade include their role as essential raw materials for high-performance materials and their relatively stable demand across various industrial sectors. While generally considered low toxicity, proper industrial handling is still required. Their unique properties ensure a steady global market, supporting advanced material science and manufacturing.
What products fall under HS code 281000?
Boric acid, boron trioxide, boron oxide, orthoboric acid, metaboric acid, industrial-grade boric acid, reagent-grade boric acid
What are common misclassifications for HS code 281000?
This code covers boron oxides and boric acids. It might be confused with borates (e.g., sodium borate, 2840.11), which are salts derived from boric acid, or other boron compounds, but this code specifically refers to the oxides and the acid forms.
Which countries are the top exporters of goods under HS code 281000?
In 2025, the top exporters of HS code 281000 in UN Comtrade data were the United States ($212M, 42% of world exports), Chile ($85M) and Russia (about $60M). World exports came to about $502M, 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 281000?
In 2025, the top importers of HS code 281000 in UN Comtrade data were China ($283M, 38% of world imports), Brazil ($72M) and the United States ($45M). World imports 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.
How is HS code 281000 structured?
HS code 281000 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (10) identify the heading, and digits 5-6 (00) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 281000?
Brazil splits HS code 281000 into 2 NCM codes: 2810.00.10 (Orthoboric acid), 2810.00.90 (Boron oxides and other boric acids). The first 6 digits of each match the HS code.