China announced the appointment of a special envoy for Darfur Thursday, the AP reported. Foreign Ministry spokeswoman Jiang Yu said Liu Guijin, a former ambassador to Zimbabwe and South Africa, will focus on Darfur as China's first special representative on African affairs. A letter was sent to President Hu Jintao the day before the announcement by 108 US House of Representatives members asking China to be more active in managing the Darfur crisis, and warning that the Beijing Olympic Games next year could be negatively affected. The letter said that unless China takes a more active role, "history will judge [China's] government as having bankrolled a genocide." China's Foreign Ministry said her country is ready to work with the international community, including the US, to solve the issue. China buys two-thirds of Sudan's oil exports and sells the government weapons and military aircraft.