Hello Dennis!

WebSite X5 Professional 10 is compatible with Chinese. You may create your project if you want to. If you wish to add chinese content, simply look into Step 1 - General Settings, and select ''English'' from the content language list. Then, you will be able to translate into chinese the content and create your website. 
Please feel free to write back if you need anymore information or if you have any doubts.
Thank you!
Samantha