I'm currently working on a trading platform: http://coinancier.com, it's gonna be able to trade with most Bitcoin exchanges, including the Chinese ones: BTC-China, Huobi, OKPay.
So really, the mission is to have a great trading app/platform that works with EVERYTHING out there. Of course, to me China is a great market.

But I have no idea how to market it in China.

What I currently need:

1. Translate the landing page into Chinese and start collecting emails before the product is launched.
2. Market the app to Chinese users (looking for your suggestions)
3. Later: translate the app itself (it's just UI, so not much to translate: buttons, captions etc.)

I'm willing to share a profit from every user you bring.
Please PM to discuss it.