Mexican bread maker Grupo Bimbo has reported fourth-quarter net profit of 157m (US$14.2m) pesos, compared with 546m pesos in the year-ago period. Analysts polled by Reuters had forecast net profit of 367m pesos for the fourth quarter. "Operating margin continues to be pressured by heavy costs related to the restructuring of all the company's operations, a new technological platform and as well as increases in raw material prices," Bimbo was quoted by Reuters as saying.