The board of directors of Anton Oilfield Services Group announces that Ms. Lau Jeanie has resigned her position in Tricor Services Limited and therefore resigned as the company secretary of the Company and ceased to act as an authorised representative of the Company for the purpose of Rule 3.05 of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited and an authorised representative of the Company under Part 16 of the Companies Ordinance (Chapter 622 of the Laws of Hong Kong) and accepting services of process and notices on behalf of the Company in Hong Kong under 19.05(2) of the listing Rules, with effect from 30 October 2020. Following the resignation of Ms. Lau, the Board is going to appoint Ms. Au-Yeung Nelly as the company secretary and the Authorised Representative of the Company, both with effect from 30 October 2020. Ms. Au-Yeung is a Manager of Corporate Services of Tricor Services Limited.