Coal briquetting technology has evolved over time, with a focus on recovering valuable coal fines. Initially, coal fines were agglomerated into briquettes using various binders, but this practice declined due to health concerns and the availability of cheap petroleum. However, with the resurgence of coal as a primary fuel source, interest in recovering coal fines has grown. New developments aim to improve the processing of fine coal, which was previously costly and inefficient. These advancements have led to the recovery of coal fines from abandoned tailings, providing a valuable resource that was previously discarded.