Unroasted Iron Pyrites

Iron pyrites (FeS₂) in its unroasted form is classified under a single 10-digit tariff line (2502000000), distinguishing it from roasted pyrite ash, which falls elsewhere in the schedule. Commercially, it serves as a feedstock for sulfuric acid production and as a raw material in the chemical and metallurgical industries. Finland leads US import supply, followed by China and South Africa, making sourcing geography a key consideration for buyers managing supply-chain risk. Because this is a purely mineral commodity, no mandatory admissibility review applies at the federal level.