Analysis
HTS 3913.90.50 covers other: other under heading 3913 (natural polymers (for example, alginic acid) and modified natural polymers (for example…).
Within this group the rate runs from duty-free to 5.8%. Compared with 3913.90.10 (chemical derivatives of natural rubber), which pays duty-free, a misclassification either way moves the duty by 6.5 percentage points.
The general duty rate is 6.5% of the customs value, which is above most the rates in chapter 39 (86th percentile of 236 lines with an ad valorem rate). On a shipment valued at $10,000 that is $650 in duty before any Chapter 99 additions or preference claims.
Goods that qualify under GSP, the Australia FTA, the Bahrain FTA, the Chile FTA, the Colombia TPA, and 13 others can enter duty-free instead of paying 6.5%. It is also eligible under GSP, the developing-country programme, which Congress has to renew; check whether GSP is in force on the entry date.
The other lines in the same group are 3913.90.10 (chemical derivatives of natural rubber, duty-free) and 3913.90.20 (polysaccharides and their derivatives, 5.8%).
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 3913.90.10 | Chemical derivatives of natural rubber | Free |
| 3913.90.20 | Polysaccharides and their derivatives | 5.8% |