CoorsTek, Inc. is a privately owned manufacturer of technical ceramics for aerospace, automotive, chemical, electronics, medical, metallurgical, oil and gas, semiconductor and many other industries. CoorsTek headquarters and primary factories are located in Golden, Colorado, USA, near the foothills west of Denver. The company is wholly owned by Keystone Holdings LLC, a trust of the Coors family. The president and chairman is John K. Coors, a great-grandson of founder and brewing magnate Adolph Coors, Sr., and the fifth and youngest son of longtime chairman and president Joseph Coors.