Press TV - Iran is preparing to hold a crucial annual oil exhibition in which it says some 1,500 foreign companies from 37 countries would showcase their latest technical achievements.� �

The 22nd Iran International Oil, Gas, Refining and Petrochemical Exhibition � the Iran Oil Show � would open in capital Tehran on Saturday, 6 May 2017, with a total number of around 4,000 exhibitors.

Mohammad Nasseri, the director of the exhibition, told the domestic media that the event is considered as the biggest in the Middle East and the fifth largest in the world.

Nasseri added that the biggest exhibition space had been allocated to German companies, adding that Chinese companies would have the highest number of exhibitors in this year�s Oil Show which would continue until 9 May 2017.

He said companies from Italy, the Netherlands, France and Britain would respectively follow China in terms of the number of exhibitors.

The official said that countries such as China, Germany, France, Italy, Spain, Turkey, Russia, Japan, the Netherlands, Austria, South Korea and Australia would have their own pavilions in the Iran Oil Show.

Elsewhere in his remarks, Nasseri emphasized that a company from the US � Pall Corporation - would also be present in the event.

Major foreign exhibitors would include Wintershall Holding GmbH (Germany), Siemens (Germany), Lukoil (Russia), OMV (Austria), and ONGC (India).