Leer South is expected to commence longwall production in the third quarter of 2021. The following is a description of these general coal characteristics:Heat Value. The heat value of coal is commonly measured in Btus. World steel production decreased under 1% in 2020. As economic activity began to recover throughout the year so did steel production. On occasion, we retain title to the coal to the ocean receiving port. Higher seam recovery rates can be achieved if retreat mining is used. To minimize the moisture content in coal, we process most coal sizes through centrifuges. We control a significant portion of the coal reserves through federal and state leases. We do not process the coal mined at this complex. The loadout facility can load a 15,000-ton train in less than three hours. Beckley is extracting high quality, Low-Volatile metallurgical coal in the Pocahontas No. We are currently developing further access to High-Vol B reserves in the No. The West Elk mining complex extracts thermal coal from the E seam. Coal prices are influenced by a number of factors and can vary materially by region. We also have sales representatives in our Singapore and London offices. In thermal coal, our principal competitor is natural gas and other alternative fuels. In 2020, we recorded $15.8 million of expense related to these reclamation fees. By law, the EPA must review each NAAQS every five years. The MATS was finalized April 16, 2012, and required compliance for most plants by 2015. These limitations could affect the future market for coal. The repeal took effect on December 23, 2019. The proposed rule set forth two very different options for regulating CCR under RCRA. The company and its subsidiaries had an average voluntary retention rate of 95% in 2020. Deck S. Slone57Mr. Mr. Ziegler served as our Chief Commercial Officer since March 2014. The full impact of COVID-19 is unknown and rapidly evolving. Weather patterns can also greatly affect electricity demand. We are required to record new obligations as liabilities at fair value under U.S. GAAP.
