SRL for [sweetened]: Vitro S.A. , a major Mexican glass maker , said yesterday that it agreed to buy Anchor Glass Container in a tender offer for $ 21.25 a share , [sweetened] from the original $ 20 - a - share offer Vitro launched two months ago .
ARG-1: a tender offer for $ 21.25 a share | ARG-3: from the original $ 20 - a - share offer Vitro launched two months ago