1. In 2000, The cooperative project between China and Yugoslavia “Solar Energy Technology Cooperation” implemented by Mr. XI Wenhua, Ms ZHANG Lanying and Mr. LI Shimin; 2. In 2001, 16-515T“Investigation on Solar and Wind Energy Technology Development in Thailand”, finished by Mr. XI Wenhua and Ms ZHANG Lanying; 3. In 2004, “Solar PV Cell Production Line”, finished by Mr. XI Wenhua and Mr. LI Shimin; 4. In 2004, the scientific and technological cooperation project “Research and Popularizing of New and Clean Energy in Remote Areas Between China and Romonia”finished by Mr. XI Wenhua, Ms ZHANG Lanying and Mr. LI Shimin; 5. In 2004, the cooperative project between China and Pakistan “The Feasibility on Establishing Evaccuated-pipe Solar Water Heater Manufacture in Pakistan£¨15-209£©”finished by Mr. XI Wenhua, Ms ZHANG Lanying and Mr. TIAN Damao;
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