What this does
This order cancels (revokes) Tariff Concession Order 0603547, removing a duty exemption that previously allowed certain zinc processing equipment to be imported into Australia at a reduced customs duty rate (or duty-free).
The goods affected
The revocation applies specifically to "zinc leaching plant" — industrial machinery used in zinc extraction, comprising tanks, filters, reactors, reactor liners, process controllers, effluent treaters, and rotary kilns (falling under tariff classification 8419.89.90).
Who it hits
Mining companies, mineral processors, or any business importing this specific machinery.
The bottom line
From 27 July 2011, these imports attract standard customs duties instead of the previous concessionary rate. This effectively raises the cost of importing this equipment, presumably because local manufacturers can now supply it competitively.