Filters for industrial dust control systems

Dear Sirs,
As we were exclusive representative od***,dust control equipments,netherlan & UK in Iran for many years and most companies understood undersign in this position and still contact me for Bag Filters,Siclons,Equipments and so on.
But we were terminated for no good reasons, maybe due to USA sanctions.
Would you please,inform us ,if you are ready to follow our cases and give us your agency,enabling us to do our best in this field?.
Pls/advise.asap