CBIS/Korfil operates molding facilities in Massachusetts, Kentucky and Utah to produce more than 32 different sizes of its primary product, Expandable Polystyrene (EPS) Insulation Inserts, which are sold only to Concrete Block Manufacturers. Our products are tested and have been code authorized for use in grouted reinforced Masonry construction. Our company is quality and customer focused to assure conformance to mandated Energy Codes.