U.S. imports of anhydrous disodium tetraborate (refined borax) (HS 284011) totaled $121K in April 2026, traded with 2 countries.
Anhydrous refined borax — disodium tetraborate in its water-free form — is a foundational boron compound used in glass and fiberglass manufacturing, ceramic glazes, and metallurgical fluxes. Unlike its hydrated counterparts under heading 284019, the anhydrous grade commands distinct handling requirements due to its higher boron concentration and hygroscopic sensitivity. Turkey is the dominant supplier to the US market, reflecting that country's control of a large share of global boron ore reserves, with India and Mexico also contributing to import flows. The entire heading resolves to a single 10-digit tariff line (2840110000), simplifying classification but not eliminating the need to verify origin documentation for duty purposes.
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The anhydrous designation means the product contains no water of crystallization, giving it a higher boron oxide content than the decahydrate or pentahydrate forms classified under 284019. This distinction affects both industrial performance and moisture-sensitive storage requirements.
Turkey is by far the leading supplier, owing to its dominant position in global boron mineral reserves. India and Mexico are secondary sources, with Switzerland and Canada also appearing among US import origins.
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Exports
$4.3M
Imports: $121K to 2 countries
Surplus of $4.2M (net exporter)
Trade balance: surplus of $4.2M (net exporter)
YTD: $793K imported (April 2026)
3 shipments/month
Monthly import values over time
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
ALUMINUM OXIDE, EXCEPT ARTIFICIAL CORUNDUM, NESOI
HS 281820
SULFURIC ACID; OLEUM
HS 280700
Top U.S. entry points for this product, ranked by latest-month import value.