Rosan Resources Holdings Limited announced that Mr. Chan Tai Wah Calvin has tendered his resignation as the chief financial officer of the Company under Rule 3.05 of the Rules Governing the Listing of Securities (the "Listing Rules") on The Stock Exchange of Hong Kong Limited (the "Stock Exchange") with effect from 8 July 2021 due to his pursuit of personal career development. The Board further announces that Mr. Wan Man Wah ("Mr. Wan") has been appointed as the Chief Financial Officer with effect from 8 July 2021. Mr. Wan, aged 54, is a certified public accountant (practising) in Hong Kong. Mr. Wan became an associate member of the Association of Chartered Certified Accountants and the Hong Kong Institute of Certified Public Accountants in 1999, and a fellow member of the Association of Chartered Certified Accountants in 2004. He obtained a Master of Science degree in Accounting from the Hong Kong Polytechnic University in 2006 and a Master of Science degree in Finance from City University of Hong Kong in 2011, with more than 30 years of experience in auditing, company secretary and tax accounting. Mr. Wan has been a company secretary and an independent non-executive director of several companies, whose shares are listed on the Stock Exchange. He was an independent non-executive Director of the Company from April 2021 to July 2021.