The construction fund will come from vehicle purchase tax, fees and taxes collected by local governments, state bonds, domestic investment and foreign investment. Unlike other freeway systems, almost all of the roads on the NTHS/"7918 Network" are toll roads that are largely financed by private companies under contract from provincial governments. The private companies raise money through bond and stock offerings and recover money through tolls. Examples of these companies include Huabei Expressway Co., Ltd., Northeast Expressway Co., Ltd., Hunan Changyong Expressway Co., Ltd., and Guangxi Wuzhou Transportation Co., Ltd.