The two companies established the Shanghai EaseNet Network Technology for managing the games within China.[34] Blizzard and The9 prepared to launch the World of Warcraft expansion Wrath of the Lich King, but the expansion came under scrutiny by China's content regulation board, the General Administration of Press and Publication, which rejected publication of it within China in March 2009, even with preliminary modifications made by The9 to clear it. Rumors of Blizzard's dissatisfaction with The9 from this and other previous complications with World of Warcraft came to a head when, in April 2009, Blizzard announced it was terminating its contract with The9, and transferred operation of World of Warcraft in China to NetEase.[2][35][36]