MEXICO CITY (Standard&Poor's) Jan. 13, 2014--Standard&Poor's Ratings Services said today that its 'A-' corporate credit and issue level ratings on Mexico-based beverage company Coca-Cola Femsa S.A.B. de C.V. (KOF) remain unchanged following the $350 million add-on to its existing $2.15 billion senior unsecured notes. The company originally issued the notes in three tranches: $1.0 billion five-year senior notes with a coupon of 2.375%; $750 million 10-year senior notes with a coupon of 3.875%; and $400 million 30-year bonds with a coupon of 5.250%. The company will increase its 2023 and 2043 senior notes tranches by $150 million and $200 million, respectively. We don't expect the add-on to increase KOF's leverage as it will use the proceeds