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HSChapter 39
U.S. imports of artificial sausage casings of hardened protein or cellulosic plastics (HS 391710) totaled $17.0M in April 2026, traded with 33 countries.
Importers of Artificial Sausage Casings of Hardened Protein or Cellulosic Plastics paid $1.2M in duties in April 2026 — an effective duty rate of 12% on $10.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataCollagen, cellulosic, and other hardened-protein sausage casings occupy a specialized niche in meat-processing supply chains, where casing type directly affects cook yield, peel performance, and labeling requirements. The US schedule breaks this heading into four 10-digit lines — cellulosic casings (3917101000), collagen casings (3917106000), other hardened-protein casings (3917109000), and a residual line (3917100000) — reflecting the material distinctions that matter most to processors. Mexico leads US import supply, followed by Czech Republic and Germany, making European technical standards and USMCA origin rules both relevant to sourcing decisions. Importers should note that casings contacting food may trigger FDA food-contact material review in addition to standard customs entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The schedule separates casings by material: cellulosic plastic casings (3917101000), collagen casings (3917106000), other hardened-protein casings not elsewhere specified (3917109000), and a general residual line (3917100000). Correct classification depends on the specific polymer or protein substrate, so lab documentation from the manufacturer is advisable.
Although casings themselves are not food, those intended for direct food contact may be subject to FDA review under food-contact substance regulations. Importers should confirm whether the casing material has an applicable FDA food-contact notification or prior sanction. Consult a licensed customs broker or regulatory counsel to confirm admissibility requirements for your specific product.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $6.9M | $5.6M | -$1.2M |
| CZECH REPUBLIC | $3.6M | -- | -$3.6M |
| PHILIPPINES | -- | $2.2M | +$2.2M |
| FRANCE | $1.7M | -- | -$1.7M |
| GERMANY | $1.2M | $143K | -$1.0M |
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3917106000 | ARTIFICIAL GUTS(SAUSAGE CASING)OF COLLAGEN | $7.3M | 10.27% | $752K |
| 3917101000 | ARTIFICIAL GUTS(SAUSAGE CASINGS) OF CELL PLAST MAT | $6.7M | 16.60% | $435K |
| 3917109000 | ARTIFICL GUT(SAUSAGE CASING)OF HARDEND PROTEIN,NES | $3.0M | 14.28% | $28K |
ARTIFICIAL GUTS(SAUSAGE CASING)OF COLLAGEN
ARTIFICIAL GUTS(SAUSAGE CASINGS) OF CELL PLAST MAT
ARTIFICL GUT(SAUSAGE CASING)OF HARDEND PROTEIN,NES
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3917100000 | ART GUTS, SAUSAGE CASING, HARDEN PROTEIN/CELLULOS | $11.0M |
ART GUTS, SAUSAGE CASING, HARDEN PROTEIN/CELLULOS
806.1K kg
ARTICLES OF PLASTICS, NESOI
HS 392690
FLOOR, WALL, ETC COVERS, VINYL CHLORIDE POLYMERS
HS 391810
TABLEWARE AND KITCHENWARE OF PLASTICS
HS 392410
SACKS & BAGS (INCL CONES) OF POLYMERS OF ETHYLENE
HS 392321
HOUSEHOLD AND TOILET ARTICLES NESOI OF PLASTICS
HS 392490
PLATES, SHEETS ETC, NON-CELL ETC, POLYMER
HS 392010
| State | Imports | Exports | Balance |
|---|---|---|---|
| Illinois | $7.4M | $8.0M | +$545K |
| South Carolina | $2.9M | $273K | -$2.6M |
| Alabama | $1.4M | $1.1M | -$349K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $8.6M | $5.6M | -$3.0M |
| CHARLESTON, SC | $2.4M | $402K | -$2.0M |
| LONG BEACH, CA | $4K | $2.2M | +$2.2M |