Vitro, S.A.B. de C.V. (BMV:VITRO A) is exploring a possible sale of its glass-containers business for food and beverages, which represents almost half of its annual sales. In a filing with the Mexican stock exchange, Vitro said the possible sale would exclude cosmetics containers, as well as glass for the auto and construction industries. Vitro said a potential buyer, which it didn't identify, is conducting due diligence, and that any transaction would still require board, shareholder and other approvals.