His Excellency Junsai Zhang, Chinese Ambassador to Australia, and his wife Madame Guomei Yin hosted luncheon for Prof Hu and Dr Lu of Tsinghua University His Excellency Junsai Zhang, Chinese Ambassador to Australia, and his wife Madame Guomei Yin hosted luncheon for Prof Hu and Dr Lu of Tsinghua University on 12th July 2007. Madame Xiaoyu Zhu, Minister Counsellor of Education and Stella Huang of Top Education Group also attended the luncheon.