Today, an educator asked me about some webs where students can research information on China. Here are some things I do for China but they are generic Ideas, you can use them for any country.

This is the official data site of Chinese government statistics organization. Towards the end on that page, you will find market date.
http://www.stats.gov.cn/english/statisticaldata/

Also try, http://www.thechinaperspective.com/resources/index.html

Here are the two webs that I use often for demographic and economic data
http://data.worldbank.org/ and http://data.un.org/

http://www.wolframalpha.com/ is another site I use, you can try
http://www.wolframalpha.com/input/?i=Textile+exports+China

More examples here
http://www.wolframalpha.com/examples/SocioeconomicData.html

You can also use Slideshare.net and scribd.com for presentations. Usually when people present at events their slides feature data and trends.

You can also do a Google search using the filetype option. For example – China ceramic industry filetype:ppt

try other filetypes such as pdf or xls and you can a lot of documents that you may not find online via regular google search.