 CHICAGO--BUSINESS WIRE--SG Blocks, Inc. NASDAQ: SGBX SG Blocks or the Company, a leading designer, innovator and fabricator of container-based structures, today announced the opening of Chicago Airport Testing, a COVID-19 testing center in Des Plaines, IL. The testing center is overseen by SG Blocks joint venture partnership with Clarity Lab Solutions, titled Clarity Mobile Ventures, as well as with National Pain Centers, a nationally recognized medical practice. In connection with 