economy - Where to put your money in China?

When you are living in China, you probably get every now and then these calls from obnoxious men in Bangkok who suggest they have the best way to invest your money. I tend to ignore them, although they sometimes show up in person to hand over their shining brochures that predict great returns.
This weekend I had a kind of reversed conversation with a few friends who might be in the corner where my Bangkok connections would love to tap into. They are busy, busy, busy, but have a relative small amount of cash at hand that is now gathering dust at the shelves of a bank. They have been working a bit on the Shanghai stock exchange, but pulled out their money, just when the market for the first time this decade started to move upwards.
"Do you want to invest for us," they asked.

The request took me by surprise, since I'm might know a bit about China, but have not really a reputation for investing money and getting high returns. But since the amount of money is relatively small and my friends expect that China offers statistically the best chance of a good return (even if they put it in China-focused mutual funds), they can still use my China-background. What convinced me too was that I could hardly do worse than they have done themselves in the past decade.

I realized that my little endenvour might interest some of my readers here too. Perhaps they have the same 'problem' and - that might be even more likely - perhaps some of you can share your success stories and failures on investing in China-related funds. As so often, the process might be as interesting as the final result.
There are a few limitations you should know. The money is available in both Euro's and Renminbi, not in US-dollars, so US-funds might be out of the picture. (The precize amount will be set at a later stage).
If you have a nice little project in China that is in urgent need of capital, do not call me. I'm not going to be an angle investor, but are looking for rather solid investment opportunities.
For the time being, I'm going to collect information: do not hesitate to join in.