Engineering construction contract dispute between Chongqing-based Dafo Engineering Construction Co, Ltd, Yunnan-based Zhongju Real Estate Group Co, Ltd, Kunming-based Tuodong Real Estate Development Co, Ltd, China Construction Fourth Engineering Division Co, Ltd, Yunnan-based Lipan Construction Labor Subcontracting Co, Ltd, Kunming-based Guangyi Labor Subcontracting Co, Ltd and Kunming-based Xiannong Construction Labor Co, Ltd