EghtesadOnline: To speed up the development of Siraf Refining Park , a major downstream project in the city of Siraf in southern Bushehr Province, an agreement was signed between Siraf Refining Park Firm in Asalouyeh, Bushehr Province (as employer) and Machine Sazi Arak Company, in Markazi Province (as contractor) in Tehran on Sunday, head of the National Petrochemical Company said.