[5][6] During World War II, Solvay Process Company operated from May 1942 to February 1945 a flotation plant for production of spodumene concentrate from ore excavated from the Kings Mountain Mine.
The Kings Mountain Mine and associated ore processing plants shut down with the reduction of wartime demand for lithium chemicals, including high temperature engine grease and resulting cancelation of government contracts.
[5][7] In the fall of 1950, Foote Mineral Company acquired the Kings Mountain Mine and ore mill.
In 1998, Cyprus Amax sold both to Chemetall GmbH, a subsidiary of Metallgesellschaft, which is part of the Dynamit Nobel Group.
In 2015, Rockwood Lithium sold it to its present owner, the Albemarle Corporation, who currently is actively working on reopening it and resuming mining.