Incorporated and operating in % held Products and services Americas Products & Distribution Argentina CRH Sudamericana S.A. 100 Holding company Canteras Cerro Negro S.A. 99.98 Clay rooftiles, wall tiles and floor tiles Cormela S.A. 100 Clay blocks Superglass S.A. 100 Fabricated and tempered glass products Canada Building Products Oldcastle BuildingEnvelope™ Canada, Inc. 100 Custom fabricated and tempered glass products and curtain wall Oldcastle Building Products Canada, Inc.  (trading as Décor Precast, Groupe Permacon  and Oldcastle Enclosure Solutions) 100 Masonry, paving and retaining walls, utility boxes and trenches Transpavé, Inc. 100 Hardscape and patio products Chile Vidrios Dell Orto, S.A. 99.90 Fabricated and tempered glass products Comercial Duomo Limitada 99.90 Wholesaler and retailer of specialised building products United States Americas Products & Distribution, Inc. 100 Holding company CRH America, Inc. 100 Holding company Oldcastle, Inc. 100 Holding company Building Products Oldcastle Architectural, Inc. 100 Holding company Oldcastle Building Products, Inc. 100 Holding company Big River Industries, Inc. 100 Lightweight aggregates Bonsal American, Inc. 100 Premixed cement and asphalt products Glen-Gery Corporation 100 Clay bricks Merchants Metals, Inc. 100 Fabrication and distribution of fencing products Meadow Burke, LLC 100 Concrete accessories Oldcastle APG Northeast, Inc.  (trading principally as Anchor Concrete  Products and Trenwyth Industries) 100 Specialty masonry, hardscape and patio products Oldcastle APG South, Inc. (trading principally  as Adams Products, Georgia Masonry Supply  and Northfield Block Company) 100 Specialty masonry, hardscape and patio products Oldcastle APG West, Inc. (trading principally as  Amcor Masonry Products, Central Pre-Mix  Concrete Products, Texas Masonry Products,  Miller Rhino Materials, Sierra Building Products  and Superlite Block) 100 Specialty masonry and stone products, hardscape and patio products Oldcastle BuildingEnvelope™, Inc. 100 Custom fabricated architectural glass Oldcastle Lawn & Garden, Inc. 100 Patio products, bagged stone, mulch and stone Oldcastle Precast, Inc. 100 Precast concrete products, concrete pipe, prestressed plank and structural  elements Oldcastle Surfaces, Inc. 100 Custom fabrication and installation of countertops Distribution Mahalo Acquisition Corp.  (trading as G. W. Killebrew) 100 Holding company Oldcastle Distribution, Inc. 100 Holding company Allied Building Products Corp. 100 Distribution of roofing, siding and related products, wallboard, metal studs,  acoustical tile and grid A.L.L. Roofing & Building Materials Corp. 100 Distribution of roofing and related products AMS Holdings, Inc. 100 Distribution of drywall, acoustical ceiling systems, metal studs and commercial  door solutions CRH 133