Silk Fishing Leader Gut from Mexico
A thin, strong strand made from natural silk gut used as a leader in fly fishing lines. It falls under HTS 4206.00.90.00 as an article of gut (excluding silkworm gut) primarily for fishing applications. This classification covers tendon or gut-derived materials shaped for practical use.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify the gut source is non-silkworm (e.g
• beef tendon or fish gut) via supplier certificates to avoid misclassification
• Include detailed material composition in commercial invoices for CBP review
• Watch for common pitfalls like confusing with synthetic lines under Chapter 39