EXHIBIT 21

SUBSIDIARIES AS OF DECEMBER31, 2020

Co. ntral Division Logistics, LLC .  C. Smith Companies, LLC C ulcan Concrete, LLC
	State or Other Jurisdiction of Incorporation or Organization		% Owned Directly or Indirectly by Vulcan
Aggregates USA, LLC Aggregates USA (Augusta), LLC Aggregates USA (Macon), LLC Aggregates USA (Savannah), LLC Aggregates USA (Sparta), LLC Arundel Company, LLC Atlantic Granite Company, LLC Azusa Rock, LLC Black Point Aggregates, Inc. Calizas Industriales del Carmen, S.A. de C.V. CalMat Co. Chem-Marine of South Carolina DMG Equipment Company, LLC Florida Rock Industries, Inc. Freeport Aggregates Limited FRI Bahamas Ltd. Harper Brothers, LLC Heritage Logistics, LLC Legacy Vulcan, LLC Maryland Rock Industries, LLC Maryland Stone, LLC McCartney Construction Company, Inc. Mideast Division Logistics, LLC Mountain West Logistics, LLC North American Recycling and Crushing, LLC Rancho Piedra Caliza, S.A. de C.V. Rapica Servicios Tecnicos Y Administrativos, S.A. de C.V. R. C. Smith Companies, LLC RECO Transportation, LLC S & G Concrete Company, LLC Salisbury Towing, LLC Servicios Integrales, Gestoria Y Administracion, S.A. de C. V. Shamrock Building Materials, LLC Soportes Tecnicos Y Administrativos, S.A. de C.V. Southeast Division Logistics, LLC Southern Gulf Coast Division Logistics, LLC Statewide Transport, LLC Stone Creek Mira Mesa LLC TCS Materials, LLC Triangle Rock Products, LLC VGCM, B.V. Virginia Concrete Company, LLC Vulcan Aggregates Company, LLC Vulcan Asphalt, LLC Vulcan Beaches, LLC Vulcan Concrete, LLC Vulcan Construction Materials, LLC Vulcan Gulf Coast Materials, LLC Vulcan International, B.V. Vulcan Lands, Inc. Vulcan Logistics, LLC Vulica Shipping Company, Limited		Delaware Delaware Delaware Delaware Delaware Delaware South Carolina Delaware Nova Scotia Mexico Delaware South Carolina Delaware Florida Bahamas Bahamas Delaware Delaware Delaware Delaware Delaware Alabama Delaware Delaware Delaware Mexico Mexico Delaware Delaware Delaware Delaware Mexico Delaware Mexico Delaware Delaware Delaware California Delaware Delaware Netherlands Delaware Delaware Delaware Delaware Delaware Delaware North Carolina Netherlands New Jersey Delaware Bahamas	100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

Exhibit 21