The Prime Minister also said it would provide additional support to help Ukraine's government beat back the Russian invasion and care for those impacted by the violence. Last week, Australia imposed sanctions on two Russian oligarchs with links to its mining industry. One of them is billionaire Oleg Deripaska who holds stakes in QAL, a joint venture between Australian mining giant Rio Tinto and Rusal International, the world's second-largest aluminium producer. Rio Tinto has since said it was cutting ties with Rusal as part of its overall withdrawal from Russia. Australia has so far imposed a total of 476 sanctions on 443 individuals, including businessmen close to Russian President Vladimir Putin, and 33 entities, including most of Russia's banking sector and all entities responsible for the country's sovereign debt.