northeast office
heilongjiang, jilin, liaoning
north office
shanxi, hebei, shandong, tianjin, neimenggu
northwest office
shaanxi, ningxia, gansu, qinghai, xinjiang
southwest office
sichuan, chongqing, guizhou, yunnan, guangxi, xizang
central south office
henan, hubei, hunan, guangdong, hainan, hong kong
north office
shanxi, hebei, shandong, tianjin, neimenggu
southwest office
sichuan, chongqing, guizhou, yunnan, guangxi, xizang
