ChangYou is reportedly closing down Echo of Soul in China according to a report from MMOCulture. No reason for the cessation of service was given, though it comes closely on the heels of the Korean version's shut down.
Aeria Games, publisher of EoS in North America and Europe, issued a statement after the Korean closure that sets its community's mind at ease with the news that development continues and that no plan to close its version of the game is imminent.
Source: MMOCulture