North American Industry Classification System
U.S. exports of All Other Miscellaneous Chemical Products & Preparations (Including Natural) (NAICS 325998) totaled $1.2B in August 2026.
Importers of All Other Miscellaneous Chemical Products & Preparations (Including Natural) paid $96.0M in duties in August 2026, an average duty rate of 11.12% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. All Other Miscellaneous Chemical Products & Preparations (Including Natural) imports of $877.4M in August 2026 ran 18% above the year-to-date monthly average of $744.2M.
Last updated: August 2026 dataNAICS 325998 captures the widest residual tier of miscellaneous chemical manufacturing, including naturally derived preparations such as essential oils, casein-based products, and chemically modified natural substances that do not qualify for more specific NAICS codes. The inclusion of natural-origin products alongside synthetic preparations means this category intersects with multiple regulatory frameworks—EPA for certain chemical substances under TSCA, and potentially FDA for preparations with cosmetic or food-contact applications. HTS classification is highly product-specific, and the 'natural' qualifier can affect both duty treatment and admissibility review.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
14.8K import shipments a month
TSCA applies to chemical substances and mixtures not excluded by statute (such as pesticides, foods, and drugs). Importers of novel or non-exempt chemical preparations under NAICS 325998 must certify TSCA compliance at entry—either that the substance is on the TSCA Inventory or that it is exempt. Failure to certify correctly can result in refusal of admission.
Natural origin alone does not determine HTS classification; the product's chemical composition, degree of processing, and end use govern heading assignment. However, naturally derived preparations may qualify for different duty rates than their synthetic counterparts under certain HTS headings, and some may trigger USDA APHIS phytosanitary review if derived from plant material. Consulting a licensed customs broker is advisable for complex natural preparations.
National industry 1 of 2 in naics industry 32599
National industry 325998 · $1.2B of $1.4B
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Exports · August 2026
destination
customs district
Census does not publish district detail for this classification system.
origin
Census publishes state breakdowns for NAICS to the 4-digit level only. See NAICS 3259 for those.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$877.4MYoY · free account
Exports
$1.2BYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $8.7B of All Other Miscellaneous Chemical Products & Preparations (Including Natural) and exported $13.2B.
Through August 2026. Source: U.S. Census Bureau.