 NEW YORK--BUSINESS WIRE--SG Blocks, Inc. NASDAQ: SGBX SG Blocks or the Company, a leading designer, innovator and fabricator of container-based structures, announced that its Board of Directors has appointed Joseph Safina and David Villarreal to serve as members of the Companys Board of Directors. The appointments, which were effective May 28, 2021, increased the size of the Board from four to six members. The Board also named David Villarreal as its new lead independent Director. . 