How to know a company?

I enter a Europe company.
But I feel strongly that she will fail in China.
She was established 3 three years,including this year.But she has been lossing for three years.Now she can't enter Chinese market yet.I can't believe she can be success in the future if there are not big change in the company.She has poor business.And sometime she can sell one machine in two months.So produce department has no thing to do.And quality department do as well.And purchase department...We all feel boring.We have the experience of working.But now we can't do anything.
I remember when I resigned my last company,my last boss told me you must think it twice.The small company is not stable and safe.You should know it carefully.But then I have decided to quit the company for the salary was too less in the company.What's more,I thought I have known sth about this company in internet.
But now I realise I don't know her in fact.I think how to know a company before you enter it.
First, you need collect her more information on the internet.Then you can know her products,background,culture, projects,company perspective,financial conditions.If she is a globe company.And you can get above information about her headquarter.But it don't mean her brance plant same.You must know the plant you will enter.
Second,you must know the market of the plant.You should know where is her customers.This point is important.My company now is just in such condition which can't find her market.Headquarter looks down her.And she can't create herself market in China.So she can't develope any more.
Third,you should communicate with her employees.And you will know the company operating.And you know what are the employees opinions about the company.
If you do so,then you can make you decision.