Just a quick one and sorry for the ignorance but I thought the Chinese dealt in usd. I know the Taiwanese companies deal in this unless the usd crumbles then I remember they traded aud for awhile. This was many years ago though.
As per my earlier post, the US dollar is an almost universally accepted currency and whilst on the street level it would be an acceptable form of payment (along with the Euro) at major hotels, banks, large scale businesses et al which cater for the tourist trade it is a different story when talking about global currency markets. The IMF has recently in the last few months begun the process to accept the Chinese Yuan into what is colloquially known in trade terms as their basket of currencies but the estimates are that as a percentage of the total basket it would only sit at around 10-12% due to its limited universal appeal.
