So in a nutshell for Bulk cargoes and not containerised
Pink shipping Bill ( Ex Works Sale)
GST Invoice : NIL rated GST invoice as for exports only
Shipping Bill Exporter Column = SEZ Unit
Shipping Bill Consignee/Buyer Column : Merchant Exporter / Status holder
Free Shipping Bill (FOB Sales)
Commercial Invoice from Merchant exporter to foreign Buyer/trader
Shipping Bill Exporter column= Merchant Exporter / Status holder
Shipping Bill Consignee column = End Buyer / End user of bulk commodity outside india
Shipping Bill Buyer column = Foreign Buyer/ Trader
MEIS can be claimed by Merchant Exporter/ Status holder on his IEC subject to SEZ Unit gives a disclaimer letter to DGFT that they would not claim MEIS benefit on its account for particular transaction.