• December 17, 2025
F-grade coal

This article explores the characteristics, occurrence, production, economic role and industrial significance of what is commonly referred to as F-grade coal — a practical label used in some markets and…

  • 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 12, 2025
High-moisture coal

High-moisture coal is a broad category of low-rank coals that contain a significantly higher share of water in their natural state than medium- and high-rank coals. These coals play an…

  • December 10, 2025
Ultra-low-sulfur coal

Ultra-low-sulfur coal has become an increasingly important commodity in global energy and industrial markets. Characterized by very low sulfur content compared with conventional coals, this product meets stricter emissions requirements,…

  • December 8, 2025
Fuxin Haizhou Mine – China

The Fuxin Haizhou Mine is an important element in the industrial and historical landscape of northeastern China. Located within the Fuxin coalfield in Liaoning Province, this mining complex has been…

  • December 7, 2025
House coal

House coal — commonly sold as lumps of coal intended for domestic heating and small-scale use — remains an important yet controversial energy commodity in many parts of the world.…

  • December 7, 2025
Zhundong Coal Field – China

The Zhundong Coal Field in northwestern China is one of the country’s most discussed and strategically important coal provinces. Located in the eastern part of the Junggar (Dzungarian) Basin in…

  • December 2, 2025
Sub-bituminous C

Sub-bituminous C is a specific rank of coal that plays a quiet but important role in global energy systems. Positioned between lignite and higher-rank bituminous coals, sub-bituminous C combines relatively…

  • December 1, 2025
Sub-bituminous B

Sub-bituminous B coal is a low- to medium-rank thermal coal that plays an important role in contemporary energy systems, particularly for power generation. It sits between lignite and bituminous coal…

  • December 1, 2025
Sub-bituminous A

Sub-bituminous A coal occupies an important place in the global energy mix. Positioned between lignite and bituminous ranks, this coal type is commonly used for power generation and industrial heat.…