Company Name	Plant Name	Subsidiary	City	State/Province
Martin Marietta	Martin Marietta #140 Richardson	Southwest Division	Richardson	Texas
CRH AMAT	ARP Richland Plant #48	CRH AMAT NWG	Richland	Washington
Chaney Enterprises	Stafford		Richmond	Virginia
CEMEX Inc.	Rosenburg		Richmond	Texas
Titan America	Bryan Park	Powhatan Ready Mix	Richmond	Virginia
Vulcan Materials	Richmond		Richmond	Virginia
Summit Materials	Plant 4 - FM 723	Alleyton Resource Company	Richmond	Texas
CRH	Rifle	United Companies	Rifle	Colorado
Syar Industries Inc.	Syar Concrete #45 Rio Linda	Syar Concrete LLC	Rio Linda	California
CalPortland Company	Rio Rico Ready Mix Plant		Rio Rico	Arizona
CEMEX Inc.	Rio Vista		Rio Vista	California
B & B Concrete Co., Inc.	B & B Concrete Co., Inc.	B & B Concrete Co., Inc.	Ripley	Mississippi
Cemstone	River Falls - Plant #22	Cemstone Ready Mix	River Falls	Wisconsin
Rocky Mountain Pre-Mix Concrete	Riverton Plant		Riverton	Wyoming
CRH	Riverview	Preferred Materials, Inc.	Riverview	Florida
CEMEX Inc.	78th Street		Riverview	Florida
Chandler Concrete Co., Inc.	Roanoke - 701	Chandler Virginia	Roanoke	Virginia
Martin Marietta	Martin Marietta #145 Roanoke	Southwest Division	Roanoke	Texas
New Enterprise Stone & Lime Co., Inc.	Roaring Spring-NES&L plant #2		Roaring Spring	Pennsylvania
New Enterprise Stone & Lime Co., Inc.	Roaring Spring-NES&L plant #1		Roaring Spring	Pennsylvania
MMC Materials	MMC Materials, Inc., Plant 67	Memphis-North Mississippi Area	Robinsonville	Mississippi
Miles Sand & Gravel Company	Rochester		Rochester	Washington
Lehigh Hanson	Rochester	Region North	Rochester	New York
J. G. MacLellan Concrete Co., Inc.	Rochester		Rochester	New Hampshire
Thomas Concrete	ROCK HILL	CHARLOTTE DIVISION	ROCK HILL	South Carolina

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