U.S. Import Duties On Dimension Stone

This table presents the import duty rates applied by the United States to various categories of dimension stone, including slate, marble, travertine, granite, sandstone, and other monumental or building stones. These tariffs are differentiated based on the stone's processing stage, such as rough blocks, merely cut, or worked forms, and are further divided into rates applicable under normal trade relations (NTR) and non-NTR conditions. Understanding these duties is crucial for economic and industrial stakeholders as they influence the cost competitiveness of imported stone products, affect domestic stone producers, and shape trade flows in the construction and decorative stone markets.

The data reveals a range of duty structures, with many rough or crude stone imports enjoying free or minimal tariffs under NTR, such as rough granite blocks at zero percent, while more processed or finished products face higher ad valorem rates. For example, merely cut granite incurs a 2.8% duty under NTR but jumps to 60% under non-NTR, indicating significant protectionist measures against non-preferred trade partners. Travertine shows a similar pattern, with merely cut forms taxed at 3.0% NTR and 50% non-NTR. Notably, slate rough blocks are duty-free under NTR but face a 25% ad valorem tariff otherwise. The presence of specific per cubic meter duties, such as $22.95 for crude marble and $8.83 for crude granite under non-NTR, highlights the nuanced tariff application beyond percentage rates. Overall, the tariff schedule reflects a strategic balance between encouraging imports from favored countries while protecting domestic industries from less favored sources.