That only applies if we use the Chinese currency, if we use US dollars it has no bearing
I'm sure that If China wants to sell the A$ they will do so regardless.
The rest of the world, they all look after themselves first
WE are the only dopey ones who insist on the letter of the law with level playing fields and "free" trade agreements which do nothing but limit what we are permitted to export
China already buy where they want to regardless of any balance of trade, everyone one buys at the best deal that they can get, that's the law of business