• January 26, 2026
Low-BTU coal

This article examines the characteristics, occurrences, extraction, economic roles and industrial importance of low-calorific-value coal—commonly referred to as low-BTU coal. It presents geological and geographical contexts, outlines the technological and…

  • January 24, 2026
Carbon-rich hard coal

This article examines the geological nature, distribution, extraction, economic importance and industrial uses of high-carbon hard coal — a group of coals valued for their high fixed carbon content and…

  • January 4, 2026
Bulli Seam Operations – Australia

The Bulli Seam, one of the most important coal horizons in New South Wales, has played a central role in Australia’s coal industry for well over a century. Located within…

  • December 29, 2025
Taldinskaya-Zapadnaya Mine – Russia

The Taldinskaya-Zapadnaya mine is one of the coal-producing sites located in the heart of Siberia’s industrial coal region. This article provides a comprehensive overview of the mine’s location and geological…

  • December 23, 2025
Carbon coal

The following article examines the geological nature, global distribution, economic importance, and environmental implications of coal — a sedimentary rock that has powered industry and societies for centuries. It covers…

  • December 22, 2025
Gas coal

This article explores the nature, distribution, economic importance and industrial uses of gas coal — a form of coal with distinctive physical and chemical properties that make it valuable for…

  • December 20, 2025
Soft steam coal

This article explores the characteristics, distribution, economic role and industrial importance of soft steam coal. Soft steam coal—commonly identified with certain grades of bituminous coal used primarily for thermal applications—remains…

  • December 20, 2025
Hard steam coal

Hard steam coal is a widely used category of solid fossil fuel, valued for its relatively high energy content and versatility across power generation and industrial processes. This article examines…

  • December 16, 2025
Amlohri Mine – India

The following article presents a comprehensive overview of the Amlohri Mine, a coal mining site in India. Publicly available, mine-specific data for Amlohri are limited; therefore the narrative combines verified…

  • December 15, 2025
Ultra-supercritical coal grade

The term ultra-supercritical is most commonly associated with advanced steam cycle technology used in coal-fired power plants, not a standalone type of coal. However, certain coal qualities are particularly suitable…