 EULESS, Texas, March 26, 2021 PRNewswire -- U.S. Concrete, Inc. NASDAQ: USCR the Company or U.S. Concrete, a leading supplier of aggregates and ready-mixed concrete in active construction markets across the country, announced today that William J. Sandbrook, member of the Companys Board of Directors, has decided not to stand for reelection at the Companys 2021 annual meeting of stockholders. 