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As of June 2016, Solvay completed the purchase of Eastman Chemical Company’s share in their former U.S. joint venture Primester. As the sole owner of the cellulose acetate flake plant in Kingsport, Solvay has secured the most economical long term supply for its own tow businesses while adapting capacity to demand.

Eastman will provide the long-term supply of basic utilities and raw materials to the Kingsport, Tennessee-based plant that was formed in 1991 and started production in 1994. 

1801 Warrick Drive

Kingsport, TN 37660

Mt. Pleasant

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The Mt. Pleasant site is part of the Technology Solutions global business unit. The site manufactures ACORGA® metal extractants, which are used in copper mining and phosphines, as well as phosphorus specialties.

The phosphines and phosphorus specialties have primary usage in photo initiators (once exposed to light, polymerization is initiated). Secondary usage is in flame retardants, stabilizers and as catalyst ligands. Specific products that are manufactured using phosphines and phosphorus specialties include antioxidants for polymer systems, herbicides, ligands used as flame retardants in baby clothes, foundry resins, and pharmaceutical intermediates.

7910 Mt. Joy Road 
Mt. Pleasant, TN 38474