GenCorp Inc. operates in two business segments, its aerospace, defense and fine chemicals businesses and its automotive vehicle sealing business. Aerojet-General Corporation, in which GenCorp has invested heavily, is engaged in the development and production of space electronics and smart munitions, as well as solid and liquid rocket propulsion systems and related defense products and services. Aerojet Fine Chemicals LLC, which is owned primarily by GenCorp, supplies special intermediates and active pharmaceutical ingredients primarily to commercial customers. The vehicle sealing business is an automotive supplier, engaged in the development, manufacture and sale of highly engineered extruded and molded rubber sealing systems for vehicle bodies and windows for the automotive original equipment manufacturers.