File photo of Wang Guoliang, then CFO of PetroChina, announcing company results during a news conference in Hong Kong

Reuters
File photo of Wang Guoliang, then CFO of PetroChina, announcing company results during a news conference in Hong Kong
Wang Guoliang, then CFO of PetroChina, announces company results during a news conference in Hong Kong in this March 20, 2006 file photograph. REUTERS/Bobby Yip/Files
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