Minerals Technologies ups offer to acquire AMCOL to $45 per share in cash Minerals Technologies (MTX) announced that it has made an increased cash offer of $45 per share to acquire all outstanding shares of AMCOL International (ACO) of Hoffman Estates, Illinois. The revised offer has been approved unanimously by the Minerals Technologies board and is superior to the recently announced $42.75 per share offer made by Paris-based Imerys for AMCOL. Minerals Technologies' superior all-cash $45 per share offer was conveyed to AMCOL's board of directors. JPMorgan has provided signed commitment papers with respect to financing the purchase price of the transaction. Minerals Technologies expects the transaction to be immediately accretive to earnings upon closing, excluding acquisition-related costs and charges, even before consideration of significant synergies. The transaction is expected to close in 1H14 and would be subject to customary closing conditions.