When minerals, rocks, or stones are located too far beneath the ground to be extracted by surface mining, underground mining is used. Miners construct underground rooms in which to operate in order to extract minerals from the mine.
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The List of Companies
- Atlas Copco (India) Ltd
- Boart Longyear
- Caterpillar Inc.
- Epiroc Finland Oy Ab
- J.H. Fletcher and Co.
- Komatsu Mining Corp
- Sandvik AB
- thyssenkrupp AG
- Liebherr
- FLSmidth