Tri Technologies Inc. is a United States-based manufacturer of Expandable Polystyrene (EPS) continuous and batch pre-expanders, contour cutters, shape molding machinery, EPS cutting lines, EPS bead distribution equipment, EPS scrap processing equipment and expandable polypropylene (EPP) impregnation equipment. Based in Mt Vernon, N.Y., the firm also supplies repair parts for its machinery and provides repair service for its customer base. Tri Technologies Inc. offers both standard product line and equipment customized per its client s specifications.