This Order (effective 21 Nov 2007) declares parts for track‑mounted ore crushers and grinders (tariff code 8474.90.00) eligible for Schedule 4 tariff concession item 50, removing or reducing customs duty for qualifying imports. It affects importers of those parts and the customs administration that grants and can revoke the concession under ss.269SC–269SD. Importers benefit through lower import duty if they correctly classify goods and claim the concession; they must keep supporting documents and face administrative review or revocation risk. Customs decisions change import pricing incentives for suppliers and buyers.