U.S. exports of Natural Rubber in Other Primary Forms (NESOI) (HS 400129) totaled $1.0M in August 2026.
Importers of Natural Rubber in Other Primary Forms (NESOI) paid $3K in duties in August 2026, an average duty rate of 1.63% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Natural Rubber in Other Primary Forms (NESOI) imports of $180K in August 2026 ran 88% below the year-to-date monthly average of $1.5M.
Last updated: August 2026 dataEncompassing natural rubber forms that do not fit the smoked sheet or TSNR classifications — such as air-dried sheets, crepe rubber, and other specialty processed forms — this residual heading (4001290000) serves niche compounding and specialty product applications. Turkey, Sri Lanka, and Indonesia are among the leading US suppliers, a notably diverse origin mix that reflects the variety of processing traditions captured here. Importers should pay close attention to the processing method and physical form described in supplier documentation, as the boundary between this NESOI line and the TSNR or smoked sheet headings can be a classification gray area requiring careful review.
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27 import shipments a month
Air-dried sheets (ADS), pale crepe, brown crepe, and technically unspecified block rubber that lacks a formal grade certificate are the forms most frequently classified here. Rubber that has been processed but does not meet the visual standards for RSS grades or the technical specifications for TSNR grades also falls into this residual category.
Yes. Lightly processed crepe can sometimes be argued to fall under Chapter 40's primary forms provisions or, if further worked, under downstream headings. The key classification question is whether the processing has advanced the material beyond a primary form. Consulting a licensed customs broker and providing detailed processing records from the supplier is advisable to defend the declared heading.
Subheading 3 of 5 in heading 4001
Subheading 400129 · $1.0M of $5.3M
ImportsExports
Imports
$180KYoY · free account
Exports
$1.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $15.8M of Natural Rubber in Other Primary Forms (NESOI) and exported $10.7M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 4001290000 | Natural Rubber in Other Forms, NESOI | $180K | 1.63% | 27.23% | $3K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4001290000 | Natural Rubber in Other Forms, NESOI | $1.0M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · August 2026
destination
Mexico and Canada together take 97% of it.
customs district
origin
entry
rate provision · imports
72.8% enters free of duty; duty collected equals 1.63% of imports for consumption.