"laptop supplier from alibaba" as in you want to buy 10,000 to sell? Need a bit of detail what you are looking for exactly, and for what use.
For that little you can get some nice used systems, Lenovo T410 in good shape. Or a crappy new system in the netbook/chromebook range.
I'd recommend a used 4 yr old $1,000 lapotp over a new sub $400 laptop any day.