July 7, 2008

Minerals Technologies Inc. Announces Price Increases for Talc Products

Minerals Technologies Inc. (NYSE: MTX) announced today that its wholly owned subsidiary Barretts Minerals Inc. has decided to increase prices for Barretts, Montana, talc by 8 percent to 10 percent depending on product. This increase will be effective August 1, or as permitted by contract.

The price adjustments for talc products are necessary due to continuous cost increases in energy and fuel necessary to operate the Barretts, Montana, facility that mines, processes, packages and transports the talc.

Minerals Technologies Inc. is a global resource- and technology-based growth company that develops, produces and markets worldwide a broad range of specialty mineral, mineral-based and synthetic mineral products and related systems and services. The company recorded sales of $1.08 billion in 2007.

For further information about Minerals Technologies Inc. look on the Internet at http://www.mineralstech.com/