TEHRAN, May 20 (Xinhua) -- The 27th Iran International Oil, Gas, Refining and Petrochemical Exhibition concluded on Saturday.
Over 1,500 domestic firms and more than 200 foreign companies from 13 countries took part in the four-day event.
Describing the event as one of the biggest in the Middle East region, Iranian Oil Minister Javad Owji said close to 200 contracts were signed during the expo. ■
