U.S. imports of Molybdates (HS 284170) totaled $16.5M in August 2026, imported from 10 countries.
Importers of Molybdates paid $1.7M in duties in August 2026, an average duty rate of 9.54% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Molybdates imports of $16.5M in August 2026 ran 250% above the year-to-date monthly average of $4.7M.
Last updated: August 2026 dataMolybdates — salts in which molybdenum acts as the anion — are used as corrosion inhibitors, pigment precursors, and catalysts in petroleum refining and chemical processing. The US schedule splits this heading into ammonium molybdates (2841701000) and other molybdates not elsewhere specified (2841705000), reflecting distinct end-use markets: ammonium molybdate is a primary intermediate in molybdenum chemical processing, while sodium and calcium molybdates serve corrosion-inhibitor and agricultural micronutrient applications. The Netherlands and Chile are leading suppliers, with Chile's prominence reflecting its position as a major molybdenum mining country whose concentrates feed downstream chemical production.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
47 import shipments a month
The US tariff schedule separates ammonium molybdates (2841701000) from all other molybdates not elsewhere specified (2841705000). Ammonium molybdate is the most commercially significant form, used as a catalyst precursor and analytical reagent, while the residual line captures sodium molybdate, calcium molybdate, and similar salts used in corrosion inhibition and micronutrient fertilizers. Correct classification depends on the specific salt form declared on the entry.
Chile is one of the world's largest molybdenum mining countries, and its appearance among top US suppliers reflects the downstream chemical processing of mined molybdenite into molybdate compounds. The Netherlands, also a leading supplier, hosts chemical refining capacity that converts molybdenum intermediates into finished molybdate products for industrial customers, illustrating how the supply chain often spans a mining origin and a separate processing country.
Subheading 3 of 7 in heading 2841
Subheading 284170 · $16.5M of $89.3M
ImportsExports
Imports
$16.5MYoY · free account
Exports
$4.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $47.4M of Molybdates and exported $31.9M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 284170 — Molybdates, so the companies trading it can find you. Be the first supplier listed.
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 |
|---|---|---|---|---|---|
| 2841701000 | Ammonium Molybdates (Molybdenum Content) | $17.4M | 9.54% | 95.06% | $1.7M |
| 2841705000 | Molybdates, Except of Ammonium (Molybdenum), NESOI | $2K | 10.02% | 100.00% | $240 |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2841700000 | Molybdates (Molybdenum Content) | $4.1M |
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.
Imports · August 2026
origin
Netherlands and China together supply 100% of it. China pays 16.8% duty; Canada 0.0%.
customs district
destination
entry
rate provision · imports
0.0100% enters free of duty; duty collected equals 9.54% of imports for consumption.