 NEW YORK, Oct. 26, 2020 GLOBE NEWSWIRE -- Minerals Technologies Inc. NYSE: MTX MTI or the Company today announced that its Board of Directors has authorized a new, one-year 75 million share repurchase program, effective immediately. This program replaces the previous share repurchase program authorized by the Board of Directors that expired on October 23, 2020. Under the previous one-year program, MTI repurchased shares amounting to approximately 50 million. 