Philip Morris International...said an Australian proposal requiring cigarettes to be sold in plain packages violates a treaty with Hong Kong and may cause billions of dollars in damages...[I]t served the government with a notice of claim stating its intention to pursue its case in international arbitration...The Australian proposal is the first in the world to ban all logos and different colorings on cigarette packages. New Zealand, Canada and the U.K. had considered the move and didn’t put it in place because of concerns it would be illegal, British American Tobacco...said...The government plans to outlaw logos on cigarette packs...carrying health warnings instead of company logos...Cigarette brand names will appear on the packages in the same size and style of printing...The government raised tobacco taxes by 25 percent last year as it seeks to curb smoking, which is the nation’s largest single preventable cause of death, according to Health Minister... [also refers to Trojan Trading]