Samsung Biologics Opens First U.S. Plant in Rockville, Retaining 500 Jobs

Samsung Biologics officially opened its first United States manufacturing facility in Rockville on April 1, 2026, following a $353 million acquisition of the former GSK manufacturing campus. The facility retains more than 500 local jobs, adds 60,000 liters of drug substance capacity, and brings Samsung Biologics' total global manufacturing capacity to 845,000 liters. County Executive Marc Elrich, Governor Wes Moore, Council President Natali Fani-González, and Rockville Mayor Monique Ashton were among officials present at the ribbon-cutting.