U.S. exports of Articles of Gut, Goldbeater's Skin, Bladders & Tendons (SITC 89991) totaled $226K in August 2026.
Importers of Articles of Gut, Goldbeater's Skin, Bladders & Tendons paid $16K in duties in August 2026, an average duty rate of 11.01% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Articles of Gut, Goldbeater's Skin, Bladders & Tendons imports of $144K in August 2026 ran 42% below the year-to-date monthly average of $249K.
Last updated: August 2026 dataProcessed natural gut and related animal-membrane articles — excluding silkworm gut — serve highly specialized end uses including surgical sutures, musical instrument strings, and sporting goods such as tennis racket strings. The animal-origin nature of these materials means that USDA APHIS may require import permits or health certificates depending on the species and country of origin, and some articles may also be subject to FDA oversight if intended for medical use. Classification precision matters because gut used for sutures, strings, and industrial applications may be treated differently depending on the degree of processing and the declared end use.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
6 import shipments a month
USDA APHIS may require import permits or veterinary health documentation for animal-derived membrane articles, depending on species and country of origin. If the article is intended for use as a medical device or surgical suture, FDA oversight also applies. Importers should confirm applicable permit requirements before shipment, as admissibility rules vary by end use and origin.
End use can be a significant classification factor. Gut strings for musical instruments and gut used in surgical sutures may be classified under different headings based on their processing state and intended application. Importers should declare the specific end use on entry documentation and consult a licensed customs broker to confirm the correct classification.
Basic heading 378 of 419 in section 8
Basic heading 89991 · $226K of $18.4B
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Exports · August 2026
destination
Hong Kong and Costa Rica together take 100% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$144KYoY · free account
Exports
$226KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.7M of Articles of Gut, Goldbeater's Skin, Bladders & Tendons.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.