Mexican construction group Elementia has paid the final $45 million installment for the acquisition of a 47 per cent stake in Mexican cement producer Cementos Fortaleza from Switzerland?s LafargeHolcim. Cementos Fortaleza was formed as a joint venture in 2013 by Elementia and Lafarge, prior to its merger with Holcim. In 2014, Lafarge agreed to sell its interest in the venture for a total of $225 million.