Essilor International is engaged in the manufacture, purchase, sale, and trade in any and all eyewear and optical products. In particular, Co. manufactures, purchases and sells spectacle frames, sunglasses, protective glasses and other protective equipment, eyeglass and contact lenses and any and all instruments and materials for use by members of the optical ophthalmics industry. Co.'s ophthalmic lens industry is organized around four separate businesses: raw materials production, series production of lenses, prescription lenses and distribution (through opticians, optometrists and optical products retailers).