Human rights groups say China is propping up repressive regimes to secure its access to critically important raw materials . In Shanghai Obama will have town hall - style meetings with ` ` future Chinese president '' Obama 's half - brother Mark Obama Ndesandjo lives in Beijing , China . Obama is on eight - day tour through Japan , Singapore , China and South Korea .
In Shanghai Obama will have town hall - style meetings with ` ` future Chinese president '' Obama 's half - brother Mark Obama Ndesandjo lives in Beijing , China . Obama is on eight - day tour through Japan , Singapore , China and South Korea .