For a product to claim to be “Made in Australia”, “Australian Made” or “Manufactured in Australia”, Australian Consumer Law effectively states that the good must have undergone ‘substantial transformation’ within Australia.
A good has been ‘substantially transformed’ if:
Australia was the country of origin of each significant ingredient or significant component of the good; and all, or virtually all, processes involved in the production or manufacture of the good happened in Australia; or
As a result of one or more processes undertaken in Australia, the good is fundamentally different in identity, nature, or essential character from all of its ingredients or components that were imported into Australia.
It’s simply not enough, either morally or legally, to import Water Treatment Plants from China and stuck an “Aussie Proud” sticker on them after you make slight modifications (generally for faulty or sub-standard overseas workmanship).