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SITCSection 5
U.S. imports of boron oxides & boric acids (SITC 52235) totaled $5.6M in April 2026, traded with 16 countries.
Importers of Boron Oxides & Boric Acids paid $625K in duties in April 2026 — an effective duty rate of 11% on $5.5M in dutiable value, based on actual customs collections rather than the published tariff schedule. Boron Oxides & Boric Acids imports of $5.6M in April 2026 ran 27% above the year-to-date monthly average of $4.4M.
Last updated: April 2026 dataBoron trioxide (B₂O₃) and boric acid (H₃BO₃) are versatile inorganic compounds serving as key inputs in glass and fiberglass manufacturing, ceramic glazes, flame retardants, and wood preservatives. Turkey dominates global boron mineral production and is a leading source of boric acid traded into the US market, giving origin concentration a notable supply-chain dimension for buyers. Boric acid used in pesticide formulations is regulated by the EPA under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), requiring registration review for certain end-use products. EPA TSCA certification is required for industrial-grade imports.
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Boric acid imported as a finished pesticide product or pesticide active ingredient intended for direct sale or use as a pest control agent requires EPA FIFRA registration and may need an EPA-issued import notice. Boric acid imported purely as an industrial chemical or glass-manufacturing input is subject only to TSCA certification, not FIFRA.
Boron trioxide (B₂O₃) is anhydrous and highly hygroscopic, requiring sealed, moisture-resistant packaging and careful storage, while boric acid (H₃BO₃) is the hydrated form and more stable under ambient conditions. For glass and ceramic applications, B₂O₃ content percentage and particle size distribution are the primary quality specifications buyers negotiate with suppliers.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | -- | $12.2M | +$12.2M |
| TURKEY | $4.6M | -- | -$4.6M |
| JAPAN | $5K | $3.0M | +$2.9M |
| KOREA, SOUTH | -- | $2.9M | +$2.9M |
| TAIWAN | -- | $2.1M | +$2.1M |
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Monthly import values over time