The company, founded in 1988 and based in Baton Rouge, Louisiana, manufactures and supplies aromatic monomers such as para-methyl styrene (PMS), vinyl toluene (VT), tertiary-butyl styrene (TBS), and reactive monomer divinylbenzene (DVB), along with other specialty monomers. These products are used in the production of coatings, composites, construction materials, and various other applications. Deltech operates production units in Baton Rouge, where it is the largest global producer of specialty aromatic monomers, as well as in Troy, Ohio, and Haverhill, U.K. The company's offerings also include crystal polystyrene, alkyd and unsaturated polyester resins. SK Capital acquired a controlling interest in Deltech in August 2021.