Iran together with China intends to build 7 oil and gas refineries, Iran's deputy minister of oil Hossein Nogrekar Shirazi said.
"Construction of these enterprises will contribute in improvement of cooperation between China and Iran," he said, Mehr information agency said.
There is potential for cooperation in oil and gas sphere for 100 years between China and Iran, Shirazi said.
Chinese companies operate in oil and gas sphere of Iran both onshore and offshore for three years, he said.