Lafarge, a French industrial company, to acquire St-Eustache Quarry and Asphalt Operations from Mathers, a producer of crushed stone. Financial terms were not disclosed. “Today is a historical day at Lafarge Canada. This is the largest aggregates acquisition in Eastern Canada for Lafarge in over a decade and represents an opportunity to integrate an established business, with strong community roots and a history of responsible operation, into our Lafarge Aggregates family,” David Redfern, Lafarge Canada President & CEO.