The new plant is expected to produce about 130,000 tons per year, while pilot operations are planning to commence in the beginning of 2015, and commissioning of the plant in second quarter of 2015.

The company plans to produce butadiene in a closed technology system to avoid leakage into the atmosphere.

MOL Group chairman and CEO Zsolt Hernádi said the company has laid the foundation stone of one of Northern Hungary’s most important future developments.

"This new project thus simultaneously has great significance for the national economy as well as for maintaining MOL Group’s competitiveness," Hernádi added.

The group operates five refineries and two petrochemicals plant in Hungary, Slovakia, Croatia and Italy, as well as owns a network of around 1,700 filling stations across 11 countries of Central and South Eastern Europe.