Minerals Technologies Extends Tender Offer for Outstanding Shares of AMCOL International

18 april 2014 NEW YORK, NY -April 18, 2014-Minerals Technologies Inc. (NYSE: MTX) announced today that it has extended its tender offer to purchase all outstanding shares of AMCOL International Corporation (NYSE: ACO) for $45.75 per share in cash. All terms and conditions of the tender offer, other than the expiration date, remain the same. Unless extended further, the tender offer will now expire at 9:00 a.m., New York City time, on May 2, 2014. The tender offer was previously scheduled to expire at 9:00 a.m., New York City time, on April 18, 2014. The tender offer was extended pending the expiration or early termination of the waiting period under the competition laws of Poland. Authorization by the Office of Competition and Consumer Protection in Poland is a condition to the consummation of the tender offer. On April 9, 2014, the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act expired. On April 11, 2014, Minerals Technologies and AMCOL obtained clearance from the Federal Cartel Office, the German national antitrust authority. Minerals Technologies does not anticipate any regulatory concerns. As of 12:00 a.m. midnight at the end of the day, New York City time, on April 17, 2014, approximately 23,673,893 shares had been tendered and not withdrawn, representing approximately 72.6% of AMCOL's outstanding shares of common stock. The completion of the tender offer is subject to the tender of at least a majority of AMCOL's outstanding shares of common stock (on a fully diluted basis) and other customary closing conditions, including receipt of regulatory clearances. As promptly as practicable following the completion of the tender offer, MTI will acquire all remaining AMCOL shares through a merger at the tender offer price. On March 21, 2014, MTI filed with the U.S. Securities and Exchange Commission ("SEC") a tender offer statement on Schedule TO which sets forth in detail the terms of the tender offer. Additionally, AMCOL has filed with the SEC a solicitation/recommendation statement on Schedule 14D-9 that includes the unanimous recommendation of AMCOL's board of directors that AMCOL stockholders accept the tender offer and tender their AMCOL shares. The information agent for the tender offer is Innisfree M&A Incorporated (the "Information Agent"). AMCOL stockholders who need additional copies of the Offer to Purchase, Letter of Transmittal or related materials or who have questions regarding the tender offer should contact the Information Agent toll-free at (888) 750-5834. American Stock Transfer & Trust Company, LLC is acting as depositary for the tender offer. Lazard Frères & Co. LLC is acting as dealer manager for the tender offer, and Cravath, Swaine & Moore LLP is acting as legal counsel to Minerals Technologies. About Minerals Technologies New York-based Minerals Technologies Inc. is a 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 $1.02 billion in 2013. About AMCOL AMCOL, headquartered in Hoffman Estates, IL., USA, produces and markets a wide range of specialty minerals and materials used for industrial, environmental and consumer-related applications. AMCOL is the parent of American Colloid Co., CETCO (Colloid Environmental Technologies Company), CETCO Oilfield Services Company and the transportation operations, Ameri-co Carriers, Inc. and Ameri-co Logistics, Inc. NOTICE TO INVESTORS This press release is neither an offer to purchase nor a solicitation of an offer to sell shares of AMCOL's common stock. MTI has filed with the SEC a tender offer statement on Schedule TO regarding the tender offer described herein, and AMCOL has filed with the SEC a solicitation/recommendation statement on Schedule 14D-9 regarding such tender offer. AMCOL's stockholders are strongly advised to read these tender offer materials carefully and in their entirety, as they may be amended from time to time, because they contain important information about such tender offer that AMCOL's stockholders should consider prior to making any decisions with respect to such tender offer. Stockholders of AMCOL may obtain a free copy of these documents at the website maintained by the SEC at www.sec.gov or by directing a request to the Information Agent at (888) 750-5834. FORWARD-LOOKING STATEMENTS This press release may contain forward-looking statements, which describe or are based on current expectations; in particular, statements relating to the company's tender offer for AMCOL. 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," "will," 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 document 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 2013 Annual Report on Form 10-K and in our other reports filed with the Securities and Exchange Commission. Minerals Technologies Media Brunswick Group Steve Lipin/Lauren Odell 212-333-3810 Minerals Technologies Media & Investor Relations Rick B. Honey 212-878-1831 Innisfree M&A Incorporated (Information Agent for the offer) 888-750-5834 This announcement is distributed by GlobeNewswire on behalf of GlobeNewswire clients. The owner of this announcement warrants that: (i) the releases contained herein are protected by copyright and other applicable laws; and (ii) they are solely responsible for the content, accuracy and originality of the information contained therein. Source: Minerals Technologies Inc via GlobeNewswire [HUG#1778351]