Mr. Jin Yunchang is an expert in CCTV's art investment, treasure, treasure hunt, national treasure archives and gateball suits. Director of China Calligraphers Association, member of Appraisal Committee of China Calligraphers Association, member of Advisory Appraisal Expert Committee of China Collectors Association, etc. He has been engaged in the identification, research and protection of ancient paintings and inscriptions for many years, and has rich experience in treasure identification.