David Chang is the President of China Credit Information Service, Ltd and Chairman of Vertrust Property Management & Consulting Co. Ltd. He also serves as Vice-Chairman of Taiwan SME Association and Director of Chamber of Commerce R.O. C.

Mr. Chang also lectures at National Cheng-Chih University, National Ching-hua University, Tam Kang University, Open University. In Mainland China, Mr. Chang has lectured at Beijing Foreign Economic & Trade University, Industrial & Commercial Bank of China, National Commodity Inspection Bureau, Construction Bank.

Previously, David served as Chairman of Business & Industrial News Agency and President of USC Alumni Association Taiwan. Mr. Chang has publications in Top 5000- The Largest Corporations in Taiwan, Business Groups in Taiwan, and General Corporation Financial Analysis in Taiwan.

Mr. Chang earned his B.S. at National Tsing Hua University, R.O.C. He also studied at Polymer Science of Akron University, Ohio. He received his MBA from the University of Southern California in 1985, graduating from the IBEAR program. Mr. Chang previously served as the former President of the IBEAR Alumni Association in Taiwan as well as the USC Alumni Association in Taiwan.