SITCSection 0
U.S. imports of whey & modified whey (concentrated or with added sugar) (SITC 02241) totaled $7.9M in April 2026, traded with 12 countries.
Importers of Whey & Modified Whey (Concentrated or with Added Sugar) paid $960K in duties in April 2026 — an effective duty rate of 22% on $4.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Whey & Modified Whey (Concentrated or with Added Sugar) imports of $7.9M in April 2026 ran 13% below the year-to-date monthly average of $9.1M.
Last updated: April 2026 dataWhey and modified whey — byproducts of cheese manufacturing — are high-value dairy ingredients used in sports nutrition, infant formula, animal feed, and food processing, whether supplied in liquid, concentrated, or dried form. Modified whey, including whey protein concentrates (WPC) and whey protein isolates (WPI), commands premium pricing and is subject to the same US dairy TRQ framework as other dairy imports. USDA FSIS admissibility requirements apply, and the degree of protein concentration or modification should be clearly documented, as it affects both classification and end-use labeling. The heading covers both sweetened and unsweetened forms, so added-sugar declarations must be accurate.
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Both WPC and WPI fall within this heading as forms of modified whey, regardless of their protein concentration level. The degree of processing (e.g., 34%, 80%, or 90% protein) does not create separate SITC classifications, though it is commercially significant and should be documented on the entry for accurate valuation and potential TRQ allocation purposes.
Importers should provide a product specification sheet detailing the processing method (ultrafiltration, ion exchange, etc.), protein content by weight, and any added ingredients. CBP may request this to confirm the product qualifies as modified whey rather than a different dairy preparation. A licensed customs broker with dairy experience can help ensure the entry documents align with the product's technical profile.
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Monthly import values over time