Molybdates

Molybdates — salts of molybdic acid — are essential inputs for corrosion inhibitors, catalysts in petroleum refining, and specialty pigments, with ammonium molybdate (2841701000) and other molybdates (2841705000) distinguished at the 10-digit level. Chile leads US import supply, consistent with its position as a major molybdenum mining country, while the Netherlands and India also rank among the top sources — reflecting both European chemical processing of Chilean ore and Asian production capacity. Molybdenum's strategic importance to the steel and catalyst industries means supply chain disruptions can have outsized downstream effects. Importers should confirm whether their product is the ammonium salt or another cation form, as the two tariff lines carry distinct classification requirements.