Which one do you think better?

Sino-foreign contractual ( investment ) joint venture
Sion-foreign investment joint venture
Sino-foreign investment enterprise

Which one do you think better? Or could you please offer me something better than one of these three?

I am looking forward to your favourable reply.

Jijia Zhang
Salesmanager

Best Regards and thanks

Thank you!

I like the third one. I think the others are a little too long and wordy to make "good copy".

And what do you mean by "good copy" ?
Thanks!

A version that you should use.

Jijia, "make good copy" is an informal expression, which means "to be an interesting piece of writing".