Thanks to revenue from Blizzard's World of Warcraft, Shanghai-based online game operator The9 Limited has reported a 54% rise in its net income for the fourth quarter. The company reported net revenues of US$ 36.2 million in the fourth quarter, a 21% increase from the third quarter of 2006 and a 54% increase from the previous fiscal year.

Of its net Q4 revenues, The9 attributed US$ 36.1 million to its operation of WoW, which recorded peak and average concurrent user numbers of 680,000 and 340,000, respectively, in the fourth quarter. This includes revenue from game-playing time, merchandise and installation package sales. The9 began operating the game in mainland China two years ago.