supply to export merchant

Manoj Agnihotri (5 Points)

17 July 2019  
I am regular registered person in GST.
one of my potential customer is merchant exporters.
he is asking to give supply of goods a @ .1% .
while all my purchase belongs to 18% slab.
He being a exporter asking to do so. he is claiming that he is eligible for the same.
is it true.
should I deal .