TGM srl specialises in the extraction and milling of granite and all Sardinian natural stones (basalt, trachyte and other granites). The company, which works internationally thanks to its commitment and reliability, is renowned for the prestige of its own Grigio Sardo granite quarries. The most important work carried out abroad includes the Utah State government palace (USA), the National Bank of Dubai and the Avenue Habib Bourguiba in Tunisia, amongst others.