The engineering technology for Pressure Vessels, Boilers and Pipelines is of great importance in many branches of various industries. C-XI is to provide a platform for communication to disseminate the experience and expertise of relevant academic, industrial, and professional organisations, regulatory agencies, as well as individuals. C-XI will be acting as a transmission belt between the academic research and industry applications, to focus on the latest research & development results and related information on all its associated aspects, with particular emphasis on advanced welding & inspection facilities, technologies and the underlying sciences, as well as on the integrity and safety assessment, maintenance and life extension of the welded pressurised engineering plants.