There are many "manufacturers" in china that clone each others drive. Most are just re-Labeled versions of the some popular drive. For 2cents they will put your logo on a drive
Leadshine is just the most well known label. Its a copy of someone elses who's a probably copy of some american drive.
The Wantai brand (model 860 and 542) (with the elephant) seems to be as popular as leadshine and sell a lot more than leadshine on ebay.. I have tried some those and if you don't mind the 10% reject rate they work ok for the price. (But the 542 50volt 5 amp drive is very unreliable, since it uses p channel mosfets on the high side bridge)
Of the 4 "Leadshine" brushless drives i bought to do a customer retrofit, one popped as soon as power was applied (see my post in the leadshine thread here in this section.. and no responce at all from leadshine)