The American Agricultural Chemical Company (AACC, est. 1899) was a Connecticut-based conglomerate of industrial producers of phosphate fertilizers. Originally concentrated in the Northern and Eastern US, their business quickly expanded to the Southern States and to Cuba.^[1] They became the largest manufacturer of fertilizers in North America, with the brand "Agrico Fertilizer".^[2] In 1963, AACC was acquired by the Continental Oil Company, which in 1966 merged it with another division to create the Agrico Chemical Company (ACC).^[2] Williams Companies bought ACC in 1972, sold off many of its assets, and split the company into American and Canadian divisions.^[2] The Canadian division became Agrico Canada L.P., and is now owned by Sollio Cooperative Group.^[3]

From 1914 until a fire there in around 1954, AACC operated a facility producing superphosphate in Cayce, South Carolina, with a fertilizer storage building, acid chamber building and water reservoir.^[4]