Does Australia produce unique 'specialty steel'? Wikipedia quotes Bob Woodward's _Fear : Trump in the White House_ , writing: > Former Australian Prime Minister Malcolm Turnbull successfully lobbied President Trump to get an exemption at the 2017 G20 Hamburg summit, arguing "[w]e do this steel that's specialty steel. We’re the only one that produces it in the world. You've got to let us out. You’ve got a $40 billion trade surplus with us. We’re military allies with you. We’re in every battle with you. I'm interested in the _specialty steel_ part of the quote. Especially the part _"We’re the only one that produces it in the world."_ Is there a specialty steel that's only produced by Australia or is this made up?

The Australia-headquartered corporation BlueScope produces specialty coated steel.

For example see ZINCALUME® steel:

> Next generation ZINCALUME® steel’s patented Activate® technology introduces magnesium into the aluminium-zinc alloy coating, improving galvanic protection by activating the aluminium. The result is a tougher protective coating that's more resistant to scratches and scuffs encountered during construction.

Since BlueScope is the assignee of some steel production patents, for example US 8840968, others are prohibited from infringing.