The Monterrey-Saltillo toll road has put off a MXP4.5bn ($351m) bond that was tentatively scheduled to price this week in the domestic market. Pricing efforts will be revisited in 1Q 2013. The concession is looking to offer UDI-denominated notes with a maturity of approximately 25 years, with proceeds repaying bank loans and subordinated debt with the government Fonadin fund. The toll road is looking to price in the UDIBonos+390bp-area. The toll road, owned by Spain's Isolux-Cosan, has been operational for almost a year. Santander, ING and Bank of America Merrill Lynch are bookrunners on the transaction, rated AA/AA+ on a national scale.