What this does: This order cancels a previous import duty exemption (called a "tariff concession") for a specific type of industrial equipment used in aluminium production.
Who it affects: Companies importing agitated digestors for alumina plants (large pressurised vessels used to extract alumina from bauxite ore). These items are classified under customs code 8479.82.00.
What changes: Importers of this equipment must now pay standard customs duties. From 27 July 2011, the duty-free status granted under Tariff Concession Order 0614817 (dating back to 20 August 2007) no longer applies.
Why it matters: This increases costs for Australian alumina producers who import these digestors. The revocation suggests that local manufacturers can now supply this equipment, meaning the duty exemption—originally granted because no local supplier existed—is no longer justified.