Newly appointed Chinese ambassador Pan Guangxue on Wednesday presented his credentials to Prime Minister Hun Sen and pledged to promote cooperative relations between Cambodia and China. Hun Sen, in turn, offered a warm welcome to the ambassador and thanked him for China’s assistance to Cambodia, the premier’s spokesman Eang Sophalleth, told reporters. Eang Sophalleth said the prime minister was also invited to pay an official visit to China in 2010. Meanwhile, Chinese Vice Premier Hui Liangyu has left China for an official visit to Cambodia, Laos, Palestine, Israel and India, the Xinhua news agency reported.