Keystone Capsules makes stock and custom tin capsules for the wine industry at its 35,000-square-foot facility in Coatesville, Pennsylvania. A division of Nathan Trotter & Co., the company draws on its parent organization’s 230 years of American tin-manufacturing experience while producing capsules domestically for quicker turnaround. Its dedicated recycling division recovers and refines used tin, supporting a capsule program designed around full recyclability.