No Australia-Czechia FTA exists so full MFN tariff rates apply to all Chapter 73 iron and steel articles, and structural steel products such as RHS, SHS and beams must carry mill certificates confirming compliance with AS/NZS 3678 or 3679 before ABF will release the goods.
Import tip
Always obtain the overseas mill's test certificate tied to the actual heat or batch number of your shipment — not a generic product certificate — because ABF and state building inspectors increasingly cross-reference MTCs against shipment quantities, and a mismatch can trigger a hold or non-conforming product notice that is far more costly than chasing the paperwork upfront.
Calculate the total landed cost for Chapter 73 goods from Czechia — duty, GST, IPC, and biosecurity included.