A chunk mined by Indiana Limestone Company, founded in 1926, one of the foremost purveyors of this special stone. National Museum of Natural History The Hoosier State’s first commercial ...

India’s cement industry is bracing for higher costs after Tamil Nadu imposed a ₹160 per tonne mineral tax on limestone, a key raw material. The levy comes at a precarious time—cement makers ...

This tax is over and above the royalty payable on limestone mining. Limestone is a key raw material for manufacturing cement and accounts for ~60-65 percent of the raw material cost and ~4-5 ...