Good Life China Corporation (GLCC)

[Dan48906]

Sunjock Dairy probably exists based on these two sites.
Doesn't prove much about them though since these are "designer" sites to showcase their art work.

On the other hand, if the billboard is legit, it proves there is such a cow place.

http://tinyurl.com/5rqman

http://tinyurl.com/6xwxcv

I think too that we should keep in mind that not everybody or every company has web or internet presence etc.
Just because it isn't found (not I didn't say CAN'T BE FOUND because that often depends upon the searcher's skills) on Google, doesn't prove it doesn't exist.
And a term cropping up on Google may or may not have any bearing on what you are trying to find.