The contract are successively LPG liquefied gas at 600 000 liters. Liquefied gas LPG is designed to drive automotive engines. The amounts will cover the supply of liquefied gas LPG meets the quality requirements specified Regulation of the Minister of Economy and Labor of 14 April 2016. On quality requirements for liquefied gas (LPG) - (Journal of Laws of 2016, item. 540) specifically identified in the Annex to the Regulation.