Gst third party exports

suman (job) (48 Points)

16 September 2017  

My query is regarding third party exports, I am manufacturer and will supply goods to third party exporter and ship goods to nearest seaport with in state or to another state for export.

Do i need to charge igst or cgst+sgst if the purchaser (third party exporter) registered in same state of the supplier.if I charge sgst+cgst will they get refund?

Request you to address my query as one is telling igst and another telling cgst+sgst,I am getting different answers from different people.