HTS heading 4001 · Chapter 40

HTS 4001: Natural rubber, balata, gutta-percha, guayule, chicle…

HTS heading 4001 covers natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip. It has 5 tariff lines with a duty rate; the general (MFN) rates are Free (5 lines).

Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.

Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.

HTS code

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Country of origin

Customs value (USD)

Mode of transport

Entry date

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Tariff lines and duty rates

HTS code	Description	General	Column 2	Estimate
4001.10.00.00	Natural rubber latex, whether or not pre-vulcanized[kg]	Free	Free	Estimate →
	Natural rubber in other forms:
4001.21.00	Smoked sheets	Free	Free
4001.21.00.10	Grade 1[kg]			Estimate →
4001.21.00.20	Grade 2[kg]			Estimate →
4001.21.00.30	Grade 3[kg]			Estimate →
4001.21.00.50	Other[kg]			Estimate →
4001.22.00	Technically specified natural rubber (TSNR)	Free	Free
4001.22.00.05	Grade 5[kg]			Estimate →
4001.22.00.10	Grade CV[kg]			Estimate →
4001.22.00.15	Grade L[kg]			Estimate →
4001.22.00.20	Grade 10[kg]			Estimate →
4001.22.00.25	Grade 20[kg]			Estimate →
4001.22.00.50	Other[kg]			Estimate →
4001.29.00.00	Other[kg]	Free	Free	Estimate →
4001.30.00	Balata, gutta-percha, guayule, chicle and similar natural gums	Free	Free
4001.30.00.05	Balata[kg]			Estimate →
4001.30.00.10	Gutta-percha and guttas, not elsewhere specified or included[kg]			Estimate →
4001.30.00.20	Chicle[kg]			Estimate →
4001.30.00.55	Other[kg]			Estimate →

19 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.

Example: base duty and fees on $10000

For HTS 4001.10.00.00 at the general rate of Free, shipped by ocean, before any Chapter 99 tariffs:

Base duty (Free)	$0.00
Merchandise Processing Fee (0.3464%, min $34.58)	$34.64
Harbor Maintenance Fee (0.125%)	$12.50
Duty and fees	$47.14

Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.

Frequently asked questions

What is the duty rate for HTS 4001?

Heading 4001 has 5 rate lines. The general (MFN) duty rates are Free (5 lines). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.

Do Section 301, 232 or 201 tariffs apply to HTS 4001?

It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.

What fees are added to an import under HTS 4001?

Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.