In an interview last week, the managing director of Chennai Petroleum Corp. informed that Iran will invest about Rs.1,500 crore in the expansion of CPCL’s Nagapattinam refinery. The expansion project will boost the facility’s capacity to 9 million tpa. The proposed investment will be Naftiran Intertrade Co.’s stake of the Rs 27,500 crore expansion plans. The Persian Gulf country has suffered severe hits on its oil exports due to US sanctions.