Air China’s Hong Kong-listed stock fell 10.17% Monday while its Shanghai-listed shares dropped 9.6% – just short of the 10% one-day limit – following news on Friday that the airline’s losses on fuel hedging tripled in one month, the South China Morning Post reported. Air China bought futures contracts for about half its fuel consumption in July, when oil prices reached a record high. Oil has since plunged by more than 60%, forcing airlines that bought at higher prices to record the difference as losses in their books. Citigroup revised its 2008 forecast for Air China from a US$55 million loss to a US$465 million loss. Shares in rival carriers China Southern and China Eastern both fell 9% in Shanghai.