Mohammad-Hassan Peyvandi, deputy head of Iran's National Petrochemical Company (NPC), said the petrochemical projects can bring $26 billion in revenues into the country.

He said 71 petrochemical projects are already underway in Iran with an average progress of 27 percent.

Petrochemicals account for 40 percent of Iran’s non-oil exports, Peyvandi said, adding that 12 to 15 petrochemical projects under construction are expected to come on stream within the next four years.

He went on to say that after completion, the projects would raise Iran’s petrochemical output by 10 million tons.