This Order, made under s269P of the Customs Act 1901, applies Schedule 4 tariff concession item 50 to imported ore conveyor systems (Tariff heading 8428.33.00) that include both synthetic belt cord and pulleys/feeders, effective 1 July 2005 and continuing until revoked (ss269SC/269SD). Mechanically, it reduces or removes import duty for eligible importers; the government forgoes tariff revenue, importers must meet the HS classification and component description to claim the concession, and an administrative delegate has power to revoke.