Though this is one of Nokia's strongholds, they are yet to release their new line of Nokia windows Phones into this region, mainly due to the kind of network they use over there.
But that's about to change as different variants of the Lumia 800 and 710 are set to be released for the Chinese market.
Nokia CEO, S. Elop revealed that the WCDMA versions of the Lumia 800 and 710 will make their way to the Asian shores by March 28th, top Network providers China Telecom and China Unicom are huge Nokia partners and are already eager to sell these non-Symbian Nokia handsets.
HTC has already launched it winpho7 handset there and is on pre-order now, but expect Nokia to crash that party in 2 weeks with 710, 800 and maybe quite possibly the newly announced low budget Lumia 610 (guaranteed to be a hit due to its low budget price)
Seems it is going to be unveiled on March 21st, Microsoft just put out an invitation for an event on March 21st for what looks to be the unveiling of Lumia products in the Biggest Asian Market (source)