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HSChapter 28
U.S. imports of molybdates (molybdenum content) (HS 284170) totaled $1.7M in May 2026, traded with 7 countries.
Importers of Molybdates (Molybdenum Content) paid $298K in duties in May 2026 — an effective duty rate of 12% on $2.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Molybdates (Molybdenum Content) imports of $1.7M in May 2026 ran 14% above the year-to-date monthly average of $1.5M.
Last updated: May 2026 dataAmmonium molybdate and other molybdate salts are key intermediates in catalyst manufacturing, corrosion-inhibiting pigments, and specialty fertilizers, with their classification based on molybdenum content rather than gross weight. The US schedule distinguishes ammonium molybdates (2841701000) from other molybdate forms (2841705000). Chile, a major molybdenum mining country, leads US import supply, with the Netherlands and India also among the top sources.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Molybdate salts vary widely in their metal content depending on the cation and hydration state. Classifying by molybdenum content aligns with how the industry prices and trades these materials, and it ensures that diluted or hydrated forms are not undervalued at entry. Importers should ensure the commercial invoice and certificate of analysis both state the molybdenum content percentage.
Ammonium molybdate is a primary feedstock for hydroprocessing catalysts used in petroleum refining, and it is also used in analytical chemistry and as a micronutrient in specialty fertilizers. The refining catalyst sector is the largest volume consumer, making US import demand sensitive to refinery maintenance cycles and catalyst replacement schedules.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| NETHERLANDS | $1.6M | -- | -$1.6M |
| CANADA | $3K | $384K | +$381K |
| UNITED KINGDOM | -- | $265K | +$265K |
| JAPAN | -- | $222K | +$222K |
| CHINA | $60K | $126K | +$66K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2841701000 | AMMONIUM MOLYBDATES (MOLYBDENUM CONTENT) | $1.5M | 0.06% | 0.42% | $882 |
| 2841705000 | MOLYBDATES, EXCEPT OF AMMONIUM (MOLYBDENUM), NESOI | $0 | -- | -- | -- |
AMMONIUM MOLYBDATES (MOLYBDENUM CONTENT)
MOLYBDATES, EXCEPT OF AMMONIUM (MOLYBDENUM), NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2841700000 | MOLYBDATES (MOLYBDENUM CONTENT) | $1.1M |
MOLYBDATES (MOLYBDENUM CONTENT)
50.2K ckg
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
| Port | Imports | Exports | Balance |
|---|---|---|---|
| BALTIMORE, MD | $1.5M | -- | -$1.5M |
| PORT HURON, MI | -- | $452K | +$452K |
| TACOMA, WA | -- | $166K | +$166K |