Addressing the K-Plastics & Rubber Exhibition (Oct 2016) in Germany's Dusseldorf on Thursday, Shahdaei elaborated on Iran's investment advantages in the petrochemical sector.
She said foreign investors may join 30 under-study projects and 50 ongoing ones by Iranian developers.
She said the 6th five-year development plan of Iran (2016-2021) has envisaged completion of these 30 plans by 2021 to add 49.1 million tons per year to the country's annual petrochemical output.
Marziyeh Shahdaei, who is also deputy petroleum minister in petrochemical affairs, added that the projects will need some $39.8 of investment for their completion.
The other 50 projects are being developed for adding 41.3 mt/y with an investment of $32.3b, the NPC official added.
"Iran is the region's second largest country for its population and economic growth and is in possession of vast oil and gas reserves which are regarded as great advantages for investment in the country."
Iran's current petrochemical production capacity stands at 63 million tons a year and the capacity should rise up to 130 million tons by 2020 and 180 million tons by 2025, she added.