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NEW YORK--(BUSINESS WIRE)--June 27, 2007--Specialty Minerals Inc. (SMI), a wholly owned subsidiary of Minerals Technologies Inc. (NYSE: MTX), launched Opacarb(R) 3000 PCC, a new coating product for the paper industry, at the PulPaper 2007 conference in Helsinki in early June.

"The introduction of this more advanced, more highly evolved Opacarb(R) PCC product presents improved cost-performance to papermakers in the coated paper market," said Riitta Mynttinen, Vice President, Europe, Paper PCC.

Opacarb(R) 3000 PCC sets a new standard for precipitated calcium carbonate (PCC) coating technology. Available initially in Europe, Opacarb(R) 3000 PCC brings cost reductions and improved performance to coated paper producers by allowing them to consider coating reformulation possibilities. Strategic use of Opacarb(R) 3000 PCC allows the reduction or elimination of high glossing clays, less use of optical brighteners and binders, and reduced calendering pressure. Users can therefore choose to achieve higher coated sheet performance, or to maintain current sheet properties at considerably lower cost.

Opacarb(R) 3000 PCC is complementary to Opacarb(R) A40 PCC and Opacarb(R) A60 PCC in Specialty Minerals' portfolio of PCC coating products for woodfree, mechanical and paper board applications. The launch of Opacarb(R) 3000 PCC emphasizes SMI's strength in customer-focused research and development. This high-performance PCC is produced at the company's state-of-the-art merchant PCC facility in Walsum, Germany, which was built in 2004. The facility ensures the availability of high-quality coating PCC products for the European market.

Many years of experience, coupled with a focus to meet customer requirements, has made SMI a leader in paper coating and filler PCC technologies.

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 $1.06 billion million in 2006.

This press release may contain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 which describe or are based on current expectations. Actual results may differ materially from these expectations. In addition, any statements that are not historical fact (including statements containing the words "believes," "plans," "anticipates," "expects," "estimates," and similar expressions) should also be considered to be forward-looking statements. The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events, or otherwise. Forward-looking statements in this press release should be evaluated together with the many uncertainties that affect our businesses, particularly those mentioned in the risk factors and other cautionary statements in our 2006 Annual Report on Form 10-K and in our other reports filed with the Securities and Exchange Commission.

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

    CONTACT: Minerals Technologies Inc.
             Rick B. Honey, 212-878-1831

    SOURCE: Minerals Technologies Inc.