The board of directors of CMMB Vision Holdings Limited announced that Dr. Liu Hui has been re-designated from an executive Director to a non-executive Director with effect from 30 April 2021. Dr. Liu is currently the chief technology officer of the Group and the vice-chairman of the Board. Dr. Liu is one of the world's leading telecommunications engineers and inventors. He was the primary inventor of over 70 granted or pending telecommunications patents, including more than twenty patents in the core OFDMA technology that underlies LTE, Mobile WIMAX and CMMB.