This Tariff Concession Order makes certain refractory bricks (tariff classification 6902.10.00) eligible for the Schedule 4, Part III concession item 50 from 28 December 2007 until revoked. The bricks must meet precise chemical thresholds: magnesia ≥48%, chromic oxide ≥15% and silica ≤3%.
It affects importers and producers of those specific bricks by changing their tariff treatment; compliance requires proving the bricks meet the stated composition and correct tariff classification, and the concession can be revoked administratively.