Why do Chinese airlines frequently ramp up flights to Australia?

Recently, reporters learned from China Eastern Airlines that the company will increase the frequency of its direct flight route from Shanghai to Brisbane starting in late June. At the same time, Hong Kong Airlines announced that it will start operating a direct flight route from Hong Kong to Sydney, Australia from June 20th. Australia is also the "main battlefield" for Hong Kong Airlines to return to the long-haul market after the epidemic. According to reporters, Australia has become a key destination for domestic airlines to resume and open new intercontinental routes after the epidemic, driven by changes in passenger demand and international route structures.