The Vale Columbia Center on Sustainable International Investment published on 15 April 2013 a brief study titled "How the Private Sector Is Changing Chinese Investment in Africa" by Xiaofang Shen, senior visiting scholar at the Johns Hopkins University School of Advanced International Studies.
The study explains that Chinese FDI in Africa is becoming increasingly diverse. Until 2005, only 52 private investment projects in Africa were registered with the Chinese government. By April 2012, this number had jumped to 923 and Chinese numbers are significantly lower than similar data provided by African countries.
Chinese private investment projects are concentrated in manufacturing (36 percent) and services (22 percent). State-owned companies have focused on construction (35 percent) and resource extraction (25 percent).