First of all, Vietnam can NEVER overtake Australia in term of Bauxite production, they have less reserve than Australia,
Second of all, I am not being biased, but you are being naive. Thing take money and time to do, both of you skipped. And then there is another thing to consider as to whether or not the Vietnam would actually help to begin with
Vietnam is LOOKING AT THE OTHER END OF US/EU SANCTION if Vietnam go do what you say, would Vietnam risk the entire US/EU market for Russia? That's a non-starter. Vietnam is not China, and even China are thinking twice before going down that road.