Most famous bitumen refineries is Pasargad and Jey. Pasargad has seven refineries around Iran and Jey located in Isfahan.
Apart from Jey and Pasargad which selling bitumen 60/70, there are some other private factories that making bitumen with VB (Vacuum bottom) of Jey and Pasargad. The bitumen quality is Ok if they use pure VB and price compatible since their cost is much less.
ATDM company selling bitumen 60/70 packed in steel drum and bag also supplying the bitumen in bulk vessel which public refineries unable to arrange such service in the same time.