Incorporated and operating in % held Products and services Americas Materials United States Oldcastle Materials, Inc. 100 Holding company APAC Holdings, Inc. and Subsidiaries 100 Aggregates, asphalt, readymixed concrete and related construction activities Callanan Industries, Inc. 100 Aggregates, asphalt, readymixed concrete and related construction activities CPM Development Corporation 100 Aggregates, asphalt, readymixed concrete, prestressed concrete and related  construction activities Dolomite Products Company, Inc. 100 Aggregates, asphalt, readymixed concrete and related construction activities Eugene Sand Construction, Inc. 100 Aggregates, asphalt, readymixed concrete and related construction activities Evans Construction Company 100 Aggregates, asphalt, readymixed concrete and related construction activities Hills Materials Company 100 Aggregates, asphalt, readymixed concrete and related construction activities Michigan Paving and Materials Company 100 Aggregates, asphalt and related construction activities Mountain Enterprises, Inc. 100 Aggregates, asphalt and related construction activities OMG Midwest, Inc. 100 Aggregates, asphalt, readymixed concrete and related construction activities Oldcastle Southern Group, Inc. 100 Aggregates, asphalt, readymixed concrete, aggregates distribution and related  construction activities Oldcastle SW Group, Inc. 100 Aggregates, asphalt, readymixed concrete and related construction activities Pennsy Supply, Inc. 100 Aggregates, asphalt, readymixed concrete and related construction activities Pike Industries, Inc. 100 Aggregates, asphalt, readymixed concrete and related construction activities P.J. Keating Company 100 Aggregates, asphalt and related construction activities Staker & Parson Companies 100 Aggregates, asphalt, readymixed concrete and related construction activities The Shelly Company 100 Aggregates, asphalt, readymixed concrete and related construction activities Tilcon Connecticut, Inc. 100 Aggregates, asphalt, readymixed concrete and related construction activities Tilcon New York, Inc. 100 Aggregates, asphalt and related construction activities Trap Rock Industries, LLC* 60 Aggregates, asphalt and related construction activities West Virginia Paving, Inc. 100 Aggregates, asphalt and related construction activities Principal Subsidiary Undertakings  continued 132 CRH