Ferrosilicon supplier to join conglomerate of metals-based companies CC Metals and Alloys LLC, a major producer and supplier of specialty ferroalloys to the global iron foundry industry, has been acquired by Optima Group LLC. Based in Amherst, NY, CC Metals and Alloys production facilities are located in Calvert City, KY. Founded in the 1940s as Pittsburgh Metallurgical, CC Metals and Alloys began as a…