Georgia-based Surfacing Products International (SPI) produces a wide range of high-quality granite and marble surfacing products for commercial and residential interiors. Homes, offices, hotels, even cruise ships have benefited from SPI’s line of trademarked tiles, countertops, trim and more.

In concert with SPI, the Problem Solving Corporation has created the Soterra™ line of cleaning and protective treatments designed specifically for SPI marble and granite, and other high-quality natural stone surfaces. Let the beauty and value of your marble and granite endure with Soterra stone care products.