Qantas is rumoured to be interested in buying around 25% of Malaysian Airline Systems (MAS) for up to A$500 million ($291 million). Certainly, Qantas can afford it and Naluri Bhd, MAS's controlling shareholder with a 29% stake, could do with some money if it is to repay half of its M$1 billion ($263 million) debt within the next two years, as required under a restructuring deal agreed with creditors in May this year.