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HS code reference

HS Code for Polymers, natural and modified natural: 3913.90

Polymers, natural and modified natural; in primary forms (excluding alginic acid, its salts and esters)

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3913.90

Use case

Pre-quote review

Next step

Calculate duty

Estimates are for planning only. Confirm final classification and rates with a licensed customs broker or the relevant customs authority.

Review Notes

Classification boundary

Review material, use, construction, and accessories

Quote workflow

Estimate first, then confirm with official tariff or broker

Is 3913.90 always the HS code for Polymers, natural and modified natural?

Polymers, natural and modified natural can be reviewed from 3913.90, but the final code depends on full product details, material, use, and destination tariff rules.

How do I estimate US import cost with this code?

Use the tariff calculator with origin, customs value, freight, and insurance to estimate landed cost.

Is this a binding classification opinion?

No. This page is for pre-quote planning and does not replace customs rulings, official tariff data, or licensed broker advice.

Related HS code pages

3913.10

Polymers, natural

Polymers, natural; alginic acid, its salts and esters, in primary forms

3901.10

Ethylene polymers

Ethylene polymers; in primary forms, polyethylene having a specific gravity of less than 0.94

3901.20

Ethylene polymers

Ethylene polymers; in primary forms, polyethylene having a specific gravity of 0.94 or more

3901.30

Ethylene polymers

Ethylene polymers; in primary forms, ethylene-vinyl acetate copolymers