• June 11, 2026
Oltenia Coal Mines – Romania

The Oltenia coal mining area in southwestern Romania has been one of the country’s most important sources of fossil fuel for decades. Concentrated in the counties of Gorj, Dolj and…

  • June 10, 2026
Improved thermal coal

Improved thermal coal refers to conventional thermal coal that has undergone physical or chemical processing to raise its **calorific value**, reduce impurities (ash, **sulfur**, moisture and trace metals), and improve…

  • May 30, 2026
Brown coal briquettes

Brown coal briquettes — a form of compacted lignite — have played a significant role in regional energy systems, industrial processes and household heating for more than a century. This…

  • May 28, 2026
Lignite briquettes

Lignite briquettes, a processed form of low-rank coal commonly called lignite or brown coal, play a distinctive role in regional energy systems and small-scale heating applications. This article explores where…

  • May 27, 2026
Power-grade lignite

This article examines brown coal (lignite), commonly referred to as power-grade lignite, describing its geological nature, global distribution, mining and processing methods, economic and industrial roles, environmental impacts and the…

  • May 26, 2026
Industrial-grade lignite

Industrial-grade lignite, often termed brown coal, is a distinctive type of coal that occupies an important but controversial position in the global energy and industrial landscape. Characterized by relatively low…

  • May 23, 2026
Maritsa East Mine – Bulgaria

The Maritsa East mining complex, known in Bulgarian as Maritsa Iztok, is the largest coal mining and power generation center in Bulgaria and one of the most significant lignite basins…

  • May 15, 2026
Kostolac Mine – Serbia

The Kostolac mining and power complex is one of Serbia’s most important coal-producing areas and energy hubs. Located in the eastern part of the country near the town of Kostolac…

  • May 14, 2026
Kosovo B Coal Mine – Kosovo

The Kosovo B coal mine is one of the central elements of Kosovo’s energy system and industrial landscape. Located in the central Kosovo basin near the town of Obiliq (also…

  • May 13, 2026
Kosovo A Coal Mine – Kosovo

This article examines the coal mining site commonly associated with the Kosovo A complex in central Kosovo: the open-pit mining operations in the Kosovo Basin that have supplied lignite to…