英皇娛樂
In 2008, he signed with Hong Kong entertainment management company Emperor Entertainment Group to handle all his activities for the Hong Kong market due to his growing popularity in Hong Kong. After previously playing romantic, tough, cool and reserved characters, Kuo made his first foray into comedy, playing the dorky, nerdy and immature character "Ning Huan Yu" in CTS's 2008 romantic comedy "Prince + Princess 2".