jgp co is an Iranian supplier and manufacturer who can supply you any kind of petroleum product ( such as bitumen grades, bitumen penetration grades, viscosity grades bitumen, oxidized bitumen, cutback bitumen, bitumen emulsion, blown asphalt, hard asphalt,...) and minerals especially gilsonite that also named bituminous coal, coal tar, natural bitumen, mineral asphalt, asphaltum and also other minerals in best quality from primary sources by lowest price and in shortest time