The Grasselli Chemicals Department of the E.I. du Pont de Nemours & Company was responsible for the manufacture of ammonia, inorganic heavy chemicals, zinc smelting, and plating products, tanning chemicals, insecticides, and wood preservatives. The records are limited to a single file on the Grasselli zinc mine near New Market, Tennessee, and contain copies of the lease, maps, geologist's reports, and correspondence on the output of the mine.