The board of directors of IDG Energy Investment Limited announced that Ng Tung Ching Raphael has tendered his resignation as the joint company secretary of the Company with effect from 31 May 2022 due to his personal career development. The Board announced that Ng Sau Mei has been appointed as the joint company secretary of the Company with effect from 31 May 2022. Ng is a director of the Listing Services Department of TMF Hong Kong Limited.

Ng has over 20 years of professional experience in the company secretarial industry. Ng holds a bachelor's degree in laws from City University of Hong Kong and a master's degree in laws from University of London in the United Kingdom, and is a fellow member of both The Hong Kong Chartered Governance Institute (formerly known as The Hong Kong Institute of Chartered Secretaries) and The Chartered Governance Institute in the United Kingdom.