United Mineral & Chemical Corp. has appointed GRUCO sales agent in Ohio, Kentucky, West Virginia, Southern Indiana and Western Pennsylvania.

United Mineral & Chemical Corp., Lyndhurst, N.J., has appointed GRUCO, Florence, Ky., sales agent in Ohio, Kentucky, West Virginia, Southern Indiana and Western Pennsylvania. United Mineral & Chemical is an importer and distributor of chemical raw materials; cadmium, organic, fluorescent and phosphorescent pigments; specialty pigments; and high-purity metals.