On 12th June 2012, MBEC received a letter of acceptance of Zhijin-Nayong expressway (road bed, bridges & culverts) construction project Section 5 in Guizhou Province with a construction period of 1035 days. The section is in a total length of 3.46km mainly including Wuzuohe River Bridge, Hanjiaya Bridge (441.5m) and Pingya Bridge.