Hello,Are the companies reliable? which are selling their products through your site. Any guarantee or you will take responsibility in case of Fraud

Unfortunately alibaba takes NO responsibility for any fraud.
It is your duty to do your due diligence before you part with any money.

Dear It should be alibaba's responsibility to take care of. Alibaba should not give space to its website for those so called companies or individuals, who are not genuine or frauds. How a to check ,who is right or wrong.

Well, certainly no one wanted to get scam. But even eBay, there is no way to stop all the scammers. What we can do is ask for more questions. Scincere suppliers wanted to do business with you. They will answer all the questions you have. I don't think scammers have the patience to answer your questions. I think you can identify who is scammer, who's not after you raised your questions.

Business itself has risk, if you are too scare about it, you can get into other industry.