The board of directors of China Biotech Services Holdings Limited announced that Mr. Huang Song ('Mr. Huang') has been re-designated from a non-executive Director to an executive Director and appointed as the chief technical officer of the Company with effect from 16 December 2019. Mr. Huang, was appointed as a non-executive Director on 15 September 2017. Mr. Huang joined the National Institute of Biological Sciences in Beijing, the People's Republic of China in 2011 as a postdoctoral research fellow and currently serves as a deputy director for administration and a director of Synthetic Biology Center of the Institute. The letter of appointment made between Mr. Huang as a non-executive Director and the Company has been terminated. Mr. Huang has entered into a new letter of appointment with the Company as an executive Director for a term of one year commencing from 16 December 2019, subject to retirement by rotation and re-election and other related provisions as stipulated in the bye-laws of the Company and the Rules Governing the Listing of Securities on the GEM of The Stock Exchange of Hong Kong Limited.