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…
Thermal middlings
Thermal middlings are an often-overlooked but important fraction of coal that plays a practical role across mining, coal preparation and power-generation value chains. This article explains what thermal middlings are,…
Chemical feedstock coal
Chemical feedstock coal is a class of coal valued not primarily for its role as a thermal fuel but for its capacity to provide carbon-rich raw materials for chemical processes.…
Cerro Largo Coal Mine – Colombia
The Cerro Largo Coal Mine in Colombia represents one of the many lesser-known but regionally significant coal operations that contribute to the country’s status as a major coal producer and…
Ovoid coal
Ovoid coal is a term that can refer both to a particular morphological form of coal lumps and to the broader category of coal as a vital geological and industrial…
Severnaya Mine – Russia
This article examines the Severnaya Mine, a coal mining site in Russia, covering its location, geology, production characteristics, economic role, and broader significance for industry and communities. The text presents…
Cheremkhovsky Coal Mine – Russia
The Cheremkhovsky coal area, often referred to in English as the Cheremkhovo coal basin or the Cheremkhovsky mine region, is an important part of Siberia’s long-standing coal industry. Located in…









