The projects were launched in a ceremony attended by First Vice-President Eshaq Jahangiri.
The projects are phase II of Karoon Petrochemical Plant, Middle East's first supplies of methylene diphenyl diisocyanate (MDI), and Takht Jamshid Petrochemical Complex.
Karoon Petrochemical Plant will supply 40 thousand tons of MDI annually.
If fully operational, the plant, financed by €350m, saves the country $300 million annually.
Karoon Petrochemical Plant is the first supplier of MDI in Iran which is a strategic product for production of a range of items including foams used in car industry and industrial covers.
Moreover, Takht Jamshid project is a key piece in completion of the value chain in the region because it is fed by butadiene and styrene for production of polymers.
Karoon Petrochemical Plant has purchased high-tech technologies for production of MDI and TDI from Sweden's Comator. The Swedish firm was a partner in Karoon Petrochemical Project prior to imposition of sanctions on Tehran's nuclear program.