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SITCSection 5
U.S. imports of vitamin c and derivatives, unmixed (SITC 54114) totaled $12.9M in April 2026, traded with 20 countries.
Importers of Vitamin C and Derivatives, Unmixed paid $42K in duties in April 2026 — an effective duty rate of 17% on $255K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataAscorbic acid and its derivatives — including sodium ascorbate, calcium ascorbate, and ascorbyl palmitate — are among the highest-volume single-vitamin commodities in global trade, used in pharmaceuticals, dietary supplements, food fortification, and cosmetics. China accounts for the overwhelming majority of global bulk ascorbic acid production, making this category particularly sensitive to Section 301 tariff measures and supply-chain concentration risk. Purity grade (pharmaceutical versus food versus technical) and physical form (powder, granule, coated) are the key specification variables that determine both classification precision and FDA admissibility pathway. Importers managing cost exposure should monitor Section 301 exclusion proceedings and consider inventory strategies given the concentrated supplier base.
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Global production of bulk ascorbic acid is heavily concentrated in China, meaning that Section 301 tariff changes, export controls, or production disruptions at a small number of Chinese facilities can rapidly affect US availability and pricing. Importers with high-volume needs often maintain safety stock or explore alternative-origin suppliers — though non-Chinese sources represent a small share of global capacity — to manage this concentration risk.
It can. Coated or microencapsulated ascorbic acid designed for specific release profiles may be classified differently from standard powder, depending on whether the coating constitutes a functional modification that shifts the product to a preparation heading. Importers should provide technical data sheets describing the coating composition and functional purpose to support accurate classification.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $7.5M | $146K | -$7.4M |
| UNITED KINGDOM | $3.9M | $124K | -$3.7M |
| SWITZERLAND | $644K | $443K | -$201K |
| CANADA | $4K | $1.1M | +$1.1M |
| GERMANY | $291K | $134K | -$157K |
Monthly import values over time