Zhuhai KEYU Biological Engineering Company Limited held the Eleventh Meeting of the Second Session of the Board of Directors and the Eighth Meeting of the Second Session of the Board of Supervisors on April 20, 2022 to consider and approve the "Proposal on the Renewal of the Appointment of Audit Institution for the Year of 2022", which was also passed on May 24, 2022 at the 2021 annual general meeting of the Company was passed at the 2021 annual general meeting of the Company on 24 May 2022. For details, please refer to the Company's announcement dated April 20, 2022 on the National Small and Medium-sized Enterprises Stock Transfer System For details, please refer to the ''Announcement on the Proposed Renewal of the Appointment of Accounting Firm by Zhuhai KEYU Biological Engineering Co. Announcement on the Proposed Renewal of the Appointment of Accounting Firm by the Company" (Announcement No. 2022-027). Company Limited held the Eleventh Meeting of the Second Session of the Board of Directors and the Eighth Meeting of the Second Session of the Board of Supervisors on April 20, 2022 to consider and approve the "Proposal on the Renewal of the Appointment of Audit Institution for the Year of 2022", which was also passed on May 24, 2022 at the 2021 annual general meeting of the Company was passed at the 2021 annual general meeting of the Company on 24 May 2022. For details, please refer to the Company's announcement dated April 20, 2022 on the National Small and Medium-sized Enterprises Stock Transfer System For details, please refer to the ''Announcement on the Proposed Renewal of the Appointment of Accounting Firm by KEYU. Announcement on the Proposed Renewal of the Appointment of Accounting Firm by the Company" (Announcement No. 2022-027).

Recently, the Company received a notice from Lixin CPA Firm (Special General Partnership) regarding the change of the Company's 2022 Audit Signatory Certified Public Accountant and Project Quality Control Reviewer, which is hereby announced as follows:

Lixin Certified Public Accountants (Special General Partnership) as the company's auditor for the year 2022, originally appointed Mr. Zhang Zhixiang Mr. Zhang Zhixiang as the project partner, Ms. Liu Qiulan as the signatory certified public accountant and Ms. Peng Minqin as the quality control auditor to provide audit services for the Company. Mr. Zhang Zhixiang and Ms. Liu Qiulan were originally appointed as the project partners, Ms. Liu Qiulan as the signatory certified public accountant and Ms. Peng Minqin as the quality control reviewer to provide audit services for the Company. In view of the work adjustment of Mr. Zhang Zhixiang, Ms. Liu Qiulan and Ms. Peng Minqin, now Lixin CPA Firm provides audit services for the Company. In view of the work adjustment of Mr. Zhang Zhixiang, Ms. Liu Qiulan and Ms. Peng Minqin, Lixin CPA Firm (Special General Partnership) has reassigned Ms. Peng Minqin as the project partner, Mr. Zhang Dechuan as the signatory certified public accountant, Ms. Liu Qiulan as the quality control reviewer to provide audit services for the Company. Mr. Zhang Dechuan is the signatory certified public accountant and Ms. Liao Mutao is the quality control reviewer.

Project partner: Ms. Peng Minqin, became a certified public accountant in 2014, started to engage in listed company audit, and started practicing in Lixin CPAs (Special General Partnership) in 2014. In the past three years, the annual reports of listed companies signed and reviewed annual reports of listed companies are 3.

Signature Certified Public Accountant: Mr. Zhang Dechuan, who became a certified public accountant in 2015, started to engage in 2013 in the auditing of listed companies, and has been practicing full-time at Lixin CPAs (Special General Partnership) since 2020.

Ms. Mutao Liao, the quality control reviewer of the project, became a certified public accountant in 2011 and started her career in 2012 as a listed company auditor. Ms. Liao Mutao, the quality control reviewer of the project, became a certified public accountant in 2011 and has been engaged in the auditing of listed companies since 2012, and has been practicing full-time in Lixin CPAs (Special General Partnership) since 2011. In the past three years (the last three complete natural years and the current year), the project partner, the signatory certified public accountant and the project quality control reviewer have not been involved in any criminal proceedings against the project partner. In the past three years (the last three complete natural years and the current year), the project partner, the signing CPA, and the project quality control reviewer have not been criminally punished for their practice, subject to administrative penalties, supervisory and regulatory actions by the SEC and its dispatching agencies, industry authorities, administrative penalties, supervisory and management measures, self-regulatory measures, disciplinary measures by securities trading venues, industry associations and other self-regulatory organizations. organizations such as securities trading venues, industry associations and other self-regulatory measures and disciplinary actions.

Relevant work arrangements will be handed over in an orderly manner during this change, and this change will not have any impact on the audit of the Company's financial report for the year 2022. This change will not affect the audit of the Company's 2022 financial report.