Global Coal Mining Market Size, Share, And Business Benefits By Type (Thermal Coal, Metallurgical Coal), By Grade (Bituminous Coal, Sub-Bituminous Coal, Lignite, Anthracite), By Mining Method (Surface Mining (Strip mining, Dredging, Open-pit Mining, Mountain Removal Mining, Highwall Mining), Underground Mining (Room and Pillar, Longwall Mining)), By End-Use (Thermal Power Generation, Cement Manufacturing, Steel Manufacturing, Others), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends, and Forecast 2025-2034