He will hold meetings with Foreign Minister Penny Wong and Department of Foreign Affairs and Trade secretary Jan Adams in Canberra on Tuesday morning, as well as opposition foreign affairs spokesman Simon Birmingham. Mr Liu is expected to discuss plans for a potential visit by Mr Xi next year. Senator Wong is expected to raise the plight of detained pro-democracy advocate Yang Hengjun, as well as the few remaining trade bans. Mr Liu will also speak at the Australia China Relations Institute on Tuesday, and take part in a question-and-answer session. Mr Liu last week met Australia’s ambassador to China,…