Deltech Monomers Opco, LLC is the manufacturer of a group of enhanced performance aromatic monomers that includes para-methylstyrene (PMS), vinyltoluene (VT) and tertiary-butylstyrene (TBS). Deltech Corporation was established in 1988 to produce these monomers at our headquarters facility in Baton Rouge, LA. Deltech also produces the reactive monomer divinylbenzene (DVB) and other specialty monomers at the Baton Rouge site. The Baton Rouge site is certified compliant to ISO 9001:2000.