AUSTIN, Texas--(BUSINESS WIRE)--Fitch Ratings assigns an 'AA' rating to the following city of Seguin, Texas (city) limited tax obligations: --$15.4 million limited tax general obligation (LTGO) refunding bonds, series 2015. The bonds will sell via negotiation the week of September 14. Proceeds will be used to advance refund a portion of the city's outstanding obligations for debt service savings. Fitch also affirms its 'AA' rating on the following outstanding limited tax obligations: --$29.4 mi