Inner Mongolia Yitai Coal Co. Ltd. hereby announced that, due to commitments to other business operation of the Company, Ms. Zhao Xin (Ms. Zhao) has resigned from the positions of (i) the company secretary of the Company; the authorized representative of the company Immediately after Ms. Zhao's cessation to act as the Company Secretary, the Board is announced that, Mr. He Peixun has been appointed as the joint company secretary of the Company, the Authorized Representative and the agent for acceptance of service of process and notices on behalf of the Company in Hong Kong as required under Rule 19A.13(2) of the Listing Rules; and (ii) Mr. Wong Wai Chiu has been appointed as the Joint Company Secretary, the authorized representative of the Company for acceptance of service of process and notices on behalf of the Company in Hong Kong as required under Part 16 of the Companies Ordinance and the Alternative Authorized Representative, with effect from 29 January 2021. The biographical details of Mr. He Peixun, male, Han ethnicity, born in 1986, holds a bachelor's degree of laws, and obtained the legal professional qualification, intermediate accountant qualification, board secretary qualification, securities practice qualification and fund practice qualification. He was graduated from Inner Mongolia University in July 2009. He worked in the general manager office in the Company from July 2009 to December 2009. He worked in the Securities Department of the Company from January 2010 to May 2012. He was the director for security business in the Securities Department of the Company from June 2012 to July 2013. He was the business director in the Securities Department of the Company from August 2013 to April 2015. He was the business manager in the Investor Relations Management Department of the Company from May 2015 to October 2016. He was the intermediate business manager in the Investor Relations Management Department of the Company from November 2016 to December 2017. He served as the deputy director of the Investor Relations Management Department of the Company from December 2017 to June 2018. He has been a deputy general manager of the Company's Capital Operation and Compliance Management Department since June2018, and a supervisor of Inner Mongolia Yitai Investment Co. Ltd. since June 2017. He also served as a supervisor of the Company from May 2017 to December 2020. He has been the board secretary of the Company since December 2020. Mr. Wong Wai Chiu is the Associate Director of SWCS Corporate Services Group (Hong Kong) Limited. Mr. Wong has over 30 years of professional services and senior management experience including acting as the chief financial officer, company secretary, information technology director and law enforcement officer in the areas of finance, accounting, regulatory compliance and enforcement, internal control, corporate governance, company secretarial work, trust and forensics accounting in multi-national banking, insurance, securities and information technology corporations and listed companies in Hong Kong as well as government departments and Hong Kong Stock Exchange. Mr. Wong is a fellow of The Hong Kong Institute of Chartered Secretaries, a fellow of the Chartered Governance Institute, a member of CPA Australia, a member of the Hong Kong Trustee Association and a certified trust practitioner. Mr. Wong possesses a Bachelor of Social Sciences with honours in Accounting from the University of Hong Kong and various master's degrees and diploma in law, alternate dispute resolution, corporate governance and information technology from renowned universities of U.K., Australia and Hong Kong.