The first of two vessels carrying Chinese-made sodium perchlorate, the main precursor chemical for the production of solid propellent missile fuel, docked at the Iranian port of Bandar Abbas to deliver its cargo. Both the Golbon and a second vessel, the Jairan, are operated by the Islamic Republic of Iran Shipping Lines (IRISL) and are collectively carrying a 1000-ton shipment of sodium perchlorate for the Procurement Department of the Self Sufficiency Jihad Organization (SSJO). The Golbon left the Chinese port of Taicang three weeks ago, while the Jairan has yet to leave China.