TMI International LLC, Pittsburgh, Pa., has been acquired by River Associates Investments LLC, Chattanooga, Tenn. TMI is a fully-integrated, leading international manufacturer and supplier of innovative products and solutions designed to manage customer environments by improving work safety, cleanliness, comfort, efficiency and energy savings. Its wide range of products includes strip doors, exclusive PVC-based strip material, film, panel and sheet products, industrial curtains, roll-up doors and screens, swinging impact doors, modular enclosures, clean rooms and dock accessories.