industrial facilities enabled the Refinery to fully convert to production of motor gasoline and commercial diesel oil under the Euro-5 environmental standard in 2012.

In 2013, the Refinery launched the Diesel Oil Hydrotreatment Unit with the capacity of 1.6 MTA and Oil Sludge Recycling Unit with the capacity of 5-12 cubic meters per hour within the YaNOS development program. In 2014, the Refinery revamped the Gasoline Pool Units (1A-1M Catalytic Cracking Unit, MTBE Production Unit and Sulfuric Acid Alkylation Unit) and introduced the diesel oil dewaxing technology for improving the cold flow properties of winter fuel. In 2015, upgrading of the C-500 Section of the KM-2 Lubes and Waxes Production Plant was completed at YaNOS. The automated station for diesel oil and kerosene on-spot loading into rail tank carswas commissioned.

In 2016, YaNOS launched the on-spot station of residual fuel loading into rail tank cars designed for loading of 5.3 mln tons of the product per annum. Thus, the Refinery completed the large-scale revamping of the loading system, which had been started in 2005. The out-of-date gallery-type racks were replaced by the new stations that allowed the Enterprise increasing the accuracy of petroleum products loading and minimizing the environmental risks.

In 2017, YaNOS commissioned the Group III Base Oils Production Unit. The Unit with the capacity of 100 thousand tons per year is designed to manufacture four types of the high-end base oils, two of which have never been produced in Russia. Besides, the Enterprise mastered the production of BND 70/100 road bitumen in accordance with GOST 33133-2014,