Specialised engineering and construction group Murray & Roberts (M&R) reported on Wednesday that its order book had increased to R50.8-billion during the interim period to the end of December, up 60% on the R31.7-billion level reported for the corresponding period in the previous year. The JSE-listed group’s order book was also marginally higher than the R46.8-billion backlog reported at the end of June, M&R’s 2019 financial year-end.