The board of directors of Denox Environmental & Technology Holdings Limited announced that Mr. Wong Yu Kit (Mr. Wong) has tendered his resignation as the joint company secretary of the company (the joint company secretary) and has ceased to act as an authorized representative of the company under Rule 19.05(2) of the Listing Rules and Part 16 of the Companies Ordinance (Chapter 622 of the Laws of Hong Kong) for the acceptance of service of process and notices on behalf of the company in Hong Kong (the "Process Agent") with effect from 29 August, 2022. The board announced that Ms. Yu Anne (Ms. Yu) has been appointed as the joint company secretary and process agent in replacement of Mr. Wong with effect from 29 August 2022. The biographical details of Ms. Yu are set out as follows: Ms. Yu Anne is a corporate secretarial executive of SWCS Corporate Services Group (Hong Kong) Limited and has over 20 years of experiences in corporate secretarial field.

Ms. Yu holds a bachelor's degree from University of Huddersfield in the United Kingdom and a Master of Law degree from The University of Law in the United Kingdom and she is also an associate member of both The Hong Kong Chartered Governance Institute and the Chartered Governance Institute in the United Kingdom.