The board of directors of China Biotech Services Holdings Limited announced that Mr. Leung Pak Hou Anson ("Mr. Leung") has been appointed as an executive Director since 15 May 2013 and the compliance officer of the company since 30 May 2013. Pursuant to bye-law 84(1) of the bye-laws of the company, Mr. Leung is due to retire from office by rotation at the forthcoming annual general meeting of the company to be held on 18 May 2021 (the "2021 AGM"). Mr. Leung has informed the Board that he will not offer himself for re-election and accordingly he will retire at the conclusion of the 2021 AGM due to his other business commitments which require more of his dedication. Upon retirement, Mr. Leung will also cease to be the compliance officer of the company. The Board announced that in view of the retirement of Mr. Leung, Mr. Wang Zheng, an executive Director, has been appointed as the compliance officer of the company in place of Mr. Leung with effect from the conclusion of the 2021 AGM.