During the three-hour conversazione, Jiang Yunbao, team leader of investigation group members introduced the investigation emphasis which focuses on deeply understanding of the high technologies concerning natural gas utilization in Beijing, especially CCHP technology, Guo Changyi from BGG reviewed nature gas supply and development trend in Beijing, Jianghua Feng, GM of Energy-Net specified the existing development and marketing of CCHP technology. Furthermore, following topics have also been mentioned during the conversazione: technical criterion, marketing mode, financing method, policy barrier etc.