Slate and stone tiles are primarily sourced from quarries in the United States and globally. Slate is commonly extracted in regions like Pennsylvania, Virginia, and Tennessee, while stone tiles such as granite, marble, and limestone are imported from countries including Italy, Brazil, India, and China. Domestic production accounts for a significant portion of slate tile demand, whereas international sources dominate other stone varieties due to their diverse veining and color options.

The U.S. accounts for approximately 30% of global slate tile production, with Pennsylvania alone contributing over 60% of the nation's output. This domestic strength stems from large, accessible deposits in the Appalachian Mountains. For stone tiles, international imports satisfy 70% of U.S. demand, with Italy leading marble production (占全球产量的35%) and Brazil dominating granite (占全球产量的40%), per the U.S. Geological Survey (2022). Globalization enables access to specialized cuts and lower costs, though transportation emissions and trade tariffs remain concerns. Additionally, U.S. manufacturers increasingly source limestone from Mexico and Canada to reduce reliance on Asian suppliers. These dynamics reflect a balance between regional resource availability and international market efficiency.