SolStone is a next-generation multimodal large model specifically engineered for the coal industry. Built upon the profound technical expertise and deep industrial insights of CCTEG, SolStone represents a significant technological leap from single-text modality to a sophisticated framework encompassing video, images, and text. It introduces the industry's first "Data-Training-Application-Testing" comprehensive technical chain, aggregating high-quality multimodal datasets to fortify a robust "root-capability" matrix across high-value scenarios. By effectively addressing the limitations of general-purpose models in mining—namely insufficient semantic depth and lack of reliable cognition—SolStone provides critical, trustworthy cognitive power that serves as a core engine for high-quality industrial development, delivering more professional, precise, and credible "AI+" services to the coal sector. Official Website: https://www.solstoneai.cn