Alibaba use to be diligent about screening their suppliers and verification to protect customers. With the economic downturn they dropped their rates in
half and sales people will supply you with pictures of a factory to post on your site and OK anything you want as far as amount of employees, registered capital, etc.

The majority of listings on alibaba are not factories but individuals without even an export license who just set up a website and can write english. Better to check search alibaba.com.cn