These include coal reserves in operating coal mines, in mines under construction, and in areas explored in detail for new mine construction.

He tried a multitude of various career choices: entrepreneur, mine construction, and others.

Mine construction began in 1997, with production commencing in 1999.

The balconies are used for the circulation of the authorized personnel during the periodical inspection of the stability of the surfaces from the superior zone of the mine construction.

Between 1955 and 1990 it provided about $2 billion to fifty mining projects, broadly categorized as reform and rehabilitation, greenfield mine construction, mineral processing, technical assistance, and engineering.