[1][2][3][4][5][6] The company started by producing borax and potash from Searles Lake, at Trona, California.
In 1948, the company was San Bernardino County's second-largest employer, with 1,600 of Trona's 5,000 residents on the payroll.
During the Cold war era it produced ammonium perchlorate for U.S. missile industry, particularly for Falcon, Hawk, Minuteman, Nike Zeus, Pershing, Polaris, Scout, Sergeant, Tartar missiles.
[8] In the 1960s it bought a large interest in Compagnie des Potasses du Congo.
[1][2][3][4][5][6] When AMPOT bought the Lindsay Chemical Company it also got the Rare Earths Facility in West Chicago, Illinois.