South Sudan President Salva Kiir will meet his Chinese counterpart Hu Jintao later in the day for talks likely to focus on simmering tensions that saw an outbreak of open hostilities between South Sudan and the nation it split from. China has been a key ally and the largest economic partner of diplomatically isolated Sudan, helping it become a major oil exporter and opening a new supply line for China's voracious energy needs. But the south's split from Sudan in July 2011 and recent clashes have forced a Chinese juggling act to maintain support for Khartoum while not alienating the south, the world's newest nation and source of most of the former Sudan's oil. http://www.google.com/hostednews/af...ocId=CNG.82f99a6e478d920f9407dc666cba263e.821