December 20 (SeeNews) - Turkish builder Tekfen Insaat and its Azeri partner Azfen have won a contract worth some $1.0 billion (733 million euro) for the construction and commissioning of the Sangachal onshore terminal facilities under the stage two development of the Shah Deniz gas field in Azerbaijan, Tekfen Insaat's parent company, Turkey’s Tekfen Holding, said on Friday.