This isn't any specific supplier but something a few may find useful -
http://www.firetrust.com/en/blog/chr...-chinese-scams
Big list of Chinese scammers! Fairly useful if you just want to see if anyones name is on there. A lot of the sites listed are the fairly obvious scams like 999nikeshoes etc.
Avoid anything from Nigeria and anything branded from China.
I think it would be beneficial to add UK scammers to this thread, people seem to be less cautious of people from the UK...